Dimplex Fan DS7420 User Manual

Service Manual  
Model Number  
DS7420  
DS7425DLX  
UL Part Number  
6900470759  
6900471604  
IMPORTANT SAFETY INFORMATION: Always read this manual first before attempting to service  
this stove. For your safety, always comply with all warnings and safety instructions contained in this  
manual to prevent personal injury or property damage.  
Dimplex North America Limited  
REV PCN  
DATE  
1367 Industrial Road Cambridge ON Canada N1R 7G8  
In keeping with our policy of continuous product development, we reserve the right to make changes without notice.  
© 2011 Dimplex North America Limited  
00  
-
31-AUG-11  
7400480000R00  
 
Remote Control  
OPERATION  
To access the controls, go to the back of the stove (Figure  
1).  
The stove is supplied with an integrated On/Off remote  
control.  
! NOTE: Ensure that the stove’s Three Position Switch is  
set to the remote Control setting (IIposition).  
Figure 1  
To operate, push the ON button to turn stove on, push the  
OFF button to turn the stove off.  
B
A
C
Remote Initialization  
Follow these steps for remote control initialization and if  
required, re-initialization:  
1. Disconnect power to stove.  
2. Set the Three Position On/Off Switch to the Remote  
position (Figure 1A).  
D
3. Wait a minimum of five (5) seconds and then re-acquire  
power to stove.  
4. Within 10 seconds of re-acquiring power, press the ON  
button located on the remote control transmitter.  
A. Three Position On/Off Switch  
! NOTE: You will have only 10 seconds to perform this  
last step. Failure to do so will result in these steps  
needing to be followed again.  
The switch has two On positions marked with “I” and “II”.  
The “I” position is for manual operation. In this position the  
built-in remote control is bypassed.  
Battery Installation  
The “II” position is for operating the unit with the provided  
remote control. When in “II” position the unit is operated  
with the ON and OFF buttons of the remote control.  
To install or replace the battery:  
1. Slide battery cover open on the hand held transmitter  
(Figure 2).  
When the switch is in the center position “O” the unit is off.  
2. Correctly install one (1) 12 volt (A23) battery in the  
B.  
Light On/Off Switch  
battery holder.  
The Light On/Off Switch supplies power to the upper light of  
the log bed display area.  
3. Close the battery cover.  
Battery must be recycled or disposed ofproperly.  
Check with your Local Authority or Retailer for  
recycling advice in your area.  
C.  
Heater On/Off Switch  
The Heater On/Off Switch supplies power to the heater.  
Figure 2  
D. Heater Thermostat Control  
To adjust the temperature to your individual requirements,  
turn the thermostat control clockwise all the way to  
turn on the heater. When the room reaches the desired  
temperature, turn the thermostat knob counter clockwise  
until you hear a click. Leave in this position to maintain the  
room temperature at this setting. For additional heat, turn  
clockwise until you hear the click again and the heater will  
turn on.  
On  
Button  
Off Button  
Plastic  
Strip  
Battery  
Cover  
Resetting the Temperature Cutoff Switch  
Should the heater overheat, an automatic cut out will turn  
the heater off and it will not come back on without being  
reset. It can be reset by switching the Three Position Switch  
to Off O” and waiting five (5) minutes before switching the  
unit back on.  
CAUTION: If you need to continuously reset the heater,  
unplug the unit and call Customer Service at  
1-888-346-7539.  
3
 
REMOTE CONTROL  
OPERATION - DS7420 MOD A - D  
The remote control has a range of approximately 50ft.  
(15.25m) it does not have to be pointed at the stove and  
can pass through most obstacles (including walls). It is  
supplied with one of 243 independent frequencies to pre-  
vent interference with other units. The frequency designa-  
tion is indicated on the back of the transmitter (Figure 4)  
To access the controls, go to the back of the stove. (Figure  
3)  
A. MAIN POWER ON/OFF SWITCH  
The main power on/off switch supplies power to all stove  
functions (heater & flame).  
B. TOP LIgHT ON/OFF SWITCH  
REMOTE CONTROL INSTALLATION  
Controls the light intensity of the log bed display area.  
1. Plug stove cordset into the outlet located on the side of  
the receiver. (Figure 4)  
C. HEATER ON/OFF SWITCH  
2. Plug receiver into the wall outlet.  
The heater on off switch supplies power to the heater.  
3. Install a 9 volt battery into the transmitter. (Figure 4)  
D. HEATER THERMOSTAT CONTROL  
! NOTE:  
To adjust the temperature to your individual requirements,  
turn the thermostat control clockwise all the way to turn  
on the heater. When the room reaches the desired tem-  
perature, turn the thermostat knob counter clockwise until  
you hear a click. Leave in this position to maintain the  
room temperature at this setting. For additional heat, turn  
clockwise until you hear the click again and the heater will  
turn on.  
Stove MAIN on/off switch must be in the ON position  
prior to using the Remote Control.  
ON/OFF Remote Control may be used to control most  
other electrical devices including T.v.’s, stereos and  
lamps.  
CAUTION:  
For indoor use in dry areas only  
RESETTINg THE TEMPERATURE CUTOFF SWITCH  
For use on electrical devices with 15 amp resistive load  
or 1/3 HP inductive load  
Should the heater overheat, an automatic cut out will turn  
the heater off and it will not come back on without be-  
ing reset. It can be reset by switching the MAIN ON/OFF  
SWITCH to OFF and waiting 5 minutes before switching  
the unit back on.  
120 volt AC only  
Figure 4  
Receiver  
CAUTION: If you need to continuously reset the heater,  
unplug the unit and call Dimplex North America Limited  
at 1-800-668-6663.  
Figure 3  
A
B
C
D
OPEN  
Frequency  
Code  
Battery  
Cover  
4
 
Lower Bulbs Requirement: Quantity of three (3) 35 Watt  
Halogen Quartz lamps, 120 volt, G9 Base.  
MAINTENANCE  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of fire,  
electric shock or damage to persons.  
Do not exceed 35 Watts per bulb.  
Lower Bulb Replacement  
1. Remove the stove pipe kit (if equipped).  
2. Gently place stove on its back on a flat surface.  
Light Bulb Replacement  
Allow at least five (5) minutes for light bulbs to cool off  
before touching bulbs to avoid accidental burning of skin.  
3. Remove the heater cover retaining screws located on  
the bottom of the stove (Figure 6) and lower heater and  
light assembly out onto the floor.  
Light bulbs need to be replaced when you notice a dark  
section of the flame or when the clarity and detail of the log  
exterior disappears.  
4. Remove the burnt out bulb(s) by pulling straight out  
of socket. If bulbs are difficult to remove form socket  
move the bulb from side to side while pulling being  
careful not to damage the light socket.  
There are three (3) bulbs under the Log Set Assembly,  
which generate the flames and embers, and one (1) bulb  
above that illuminate the log exterior.  
5. Replace the lower light bulbs.  
6. Reassemble in the reverse order as above.  
Tool Requirements: Phillips screw driver  
glass Cleaning  
Helpful Hints: It is a good idea to replace all light bulbs  
at one time if they are close to the end of their rated life.  
Group replacement will reduce the number of times you  
need to open the unit to replace light bulbs.  
The clear door is cleaned in the factory during the  
assembly operation. During shipment, installation, handling,  
etc., the clear door may collect dust particles. These can be  
removed by dusting lightly with a clean, dry cloth.  
Upper Bulb Requirement: Quantity of one (1) 7 Watt  
candelabra E12 small base 120 volt.  
To remove fingerprints or other marks, the clear doors  
can be cleaned with a damp cloth. The clear door should  
be completely dried with a lint free cloth to prevent water  
spots. To prevent scratching, do not use abrasive cleaners  
or spray liquids on the clear door surface.  
Do not exceed 7 Watts per bulb.  
Upper Bulb Replacement (Figure 5)  
1. Open door by pulling the handle.  
2. Locate the upper bulb bracket.  
3. Bend light retainer bracket down.  
4. Locate and remove light bulb.  
5. Insert and install new bulb.  
Plastic Door Cleaning  
To remove fingerprints or other marks, the clear doors  
can be cleaned with a damp cloth. The clear door should  
be completely dried with a lint free cloth to prevent water  
spots. To prevent scratching, do not use abrasive cleaners  
or spray liquids on the clear door surface.  
6. Bend light retainer bracket back into its original  
position.  
Stove Surface Cleaning  
7. Close the door.  
Use warm water only to clean painted surfaces of the  
Stove. Do not use abrasive cleaners.  
Figure 5  
Servicing  
Except for light bulb replacement and cleaning described  
above, an authorized service representative should perform  
any other servicing.  
Figure 6  
Screws  
Screws  
5
 
EXPLODED PARTS DIAgRAM  
18  
11  
7
8
17  
1
10  
13  
2
14  
15  
6
4
16  
3
12  
5
9
Replacement Parts List  
Replacement Part:  
1. Log Set . . . . . . . . . . . . . . . . . . . . . . . . .0438200200RP  
2. Door. . . . . . . . . . . . . . . . . . . . . . . . . . . .0438610100RP  
3. Foot . . . . . . . . . . . . . . . . . . . . . . . . . . . .0438680100RP  
4. Flame Motor . . . . . . . . . . . . . . . . . . . . .2000210200RP  
5. Heater Assembly . . . . . . . . . . . . . . . . . .2200490700RP  
6. Thermostat . . . . . . . . . . . . . . . . . . . . . 2300150100RP*  
7. 2-Position Switch. . . . . . . . . . . . . . . . . .2800070700RP  
8. 3-Position Switch (On/Off/Remote) . . . . 2800071100RP  
9. Cord Set . . . . . . . . . . . . . . . . . . . . . . . .4100040300RP  
10. Upper Light Harness . . . . . . . . . . . . . . .4200120400RP  
11. Mirror. . . . . . . . . . . . . . . . . . . . . . . . . . .5900060600RP  
12. Reflector Assembly . . . . . . . . . . . . . . . .5900080600RP  
13. Front Glass . . . . . . . . . . . . . . . . . . . . . .5900440100RP  
14. Capacitor. . . . . . . . . . . . . . . . . . . . . . . .2300030100RP  
15. Terminal Block. . . . . . . . . . . . . . . . . . . .4000070100RP  
16. Control Knob . . . . . . . . . . . . . . . . . . . . .8800000300RP  
17. Remote Control Receiver . . . . . . . . . . .3000380100RP  
18. Remote Control Transmitter . . . . . . . . .3000370500RP  
19. LED Log Driver (DS7425DLx) . . . . . . .3000390100RP  
6
 
WIRINg DIAgRAM  
DS7420 MOD A - D  
7
 
move the bulb from side to side while pulling being  
careful not to damage the light socket.  
TO REPLACE UPPER LIgHT BULB  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
5. Replace the lower light bulbs.  
6. Reassemble in the reverse order as above.  
LOWER LIgHT BULB REQUIREMENTS: Quantity of 3  
– 35 watt Halogen Quartz lamps, 120 volt, G9 base. DO  
NOT ExCEED 35 WATTS PER BULB  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
TO REPLACE MAIN POWER SWITCH  
Light bulbs need to be replaced when you notice a dark  
section of the flame or when the clarity and detail of the  
log exterior disappears. There is one bulb at the top of the  
opening that illuminates the log set exterior and two bulbs  
under the log set which generate the flames and embers.  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
It is a good idea to replace all of the light bulbs at one  
time if they are close to the end of their rated life. Group  
replacement will reduce the number of times you need to  
open the unit to replace the light bulbs.  
1. Remove back panel screws located along the rear of  
the top panel.  
1. Open door by pulling the handle.  
2. Locate the upper bulb bracket.  
3. Bend light retainer bracket down.  
4. Locate and remove the light bulb.  
5. Insert new bulb.  
2. Open front door and release the Cams located in the  
upper corner of both side panels.  
! NOTE: To release Cams ensure arrow on Cam is facing  
up.  
6. Bend light retainer bracket back into its original posi-  
tion.  
arrow  
7. Close the door.  
3. Remove top panel.  
UPPER LIgHT BULB REQUIREMENTS: Quantity of 1  
clear chandelier or candelabra bulbs with an E-12 (small)  
socket base, 7 watt rating.  
4. Locate the main on/off switch mounted on the rear  
panel and disconnect the wiring clips and connections  
noting their original locations.  
TO REPLACE LOWER LIgHT BULBS  
5. Depress the retainer clips on the rear of the switch and  
push the switch out of the rear cover.  
WARNINg:If unit was operating prior to servicing allow  
at least 10 minutes for light bulbs and heating element to  
cool off to avoid accidental burning of skin.  
6. Properly orient the new switch and connect all of the  
wiring clips and connections.  
7. Reassemble in the reverse order as above.  
WARNINg:Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
TO REPLACE UPPER LIgHT ON/OFF  
SWITCH  
Light bulbs need to be replaced when you notice a dark  
section of the flame or when the clarity and detail of the  
log exterior disappears. There is one bulb at the top of the  
opening that illuminates the log set exterior and three bulbs  
under the log set which generate the flames and embers.  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
It is a good idea to replace all of the light bulbs at one  
time if they are close to the end of their rated life. Group  
replacement will reduce the number of times you need to  
open the unit to replace the light bulbs.  
1. Remove back panel screws located along the rear of  
the top panel.  
1. Remove the stove pipe kit (if equipped).  
2. Open front door and release the Cams located in the  
upper corner of both side panels.  
2. Gently place stove on its back on a flat surface.  
3. Remove the heater cover retaining screws located on  
the bottom of the stove and lower heater and light as-  
sembly out onto the floor.  
! NOTE: To release Cams ensure arrow on Cam is facing  
up.  
4. Remove the burnt out bulb(s) by pulling straight out  
arrow  
of socket. If bulbs are difficult to remove form socket  
8
 
3. Remove top panel.  
arrow  
4. Locate the upper light on/off switch mounted on the  
rear panel and disconnect the wiring clips and connec-  
tions noting their original locations.  
3. Remove top panel.  
5. Depress the retainer clips on the rear of the switch and  
push the switch out of the rear cover.  
4. Locate the heater on/off switch mounted on the rear  
panel and disconnect the wiring clips and connections  
noting their original locations.  
6. Properly orient the new switch and connect all of the  
wiring clips and connections.  
5. Depress the retainer clips on the rear of the switch and  
push the switch out of the rear cover.  
7. Reassemble in the reverse order as above.  
6. Properly orient the new switch and connect all of the  
wiring clips and connections.  
TO REPLACE FLAME MOTOR/FLAME  
ROD  
7. Reassemble in the reverse order as above.  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
TO REPLACE HEATER THERMOSTAT  
CONTROL  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
1. Gently place stove on its back on a flat surface.  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
2. Remove the heater cover retaining screws located on  
the bottom of the stove and lower heater and light as-  
sembly out onto the floor.  
1. Gently place stove on its back on a flat surface.  
3. Remove all of the mounting screws on the heater cover  
and separate the cover from the heater and light as-  
sembly.  
2. Remove the heater cover retaining screws located on  
the bottom of the stove and lower heater and light as-  
sembly out onto the floor.  
4. Locate the flame motor and flame rod assembly and  
remove the wiring clips and connections located by the  
heater assembly noting their original locations.  
3. Remove all of the mounting screws on the heater cover  
and separate the cover from the heater and light as-  
sembly.  
5. Remove the flame motor mounting screws and discon-  
4. Locate the thermostat mounted to the heater cover and  
disconnect the wiring connections noting their original  
locations.  
nect the flame motor from the flame rod.  
!
NOTE: When removing the flame motor some dam-  
age may occur to the flame rod. If flame rod is damaged  
5. Pull off the thermostat control knob to expose the  
mounting screws.  
replace to insure proper operation.  
6. Reassemble in the reverse order as above.  
6. Remove the mounting screws and remove the heater  
thermostat control switch.  
TO REPLACE HEATER ON/OFF  
SWITCH  
7. Properly orient the new heater thermostat control and  
connect all of the wiring connections.  
8. Reassemble in the reverse order as above.  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
TO REPLACE HEATER ASSEMBLY  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
1. Remove back panel screws located along the rear of  
the top panel.  
2. Open front door and release the Cams located in the  
upper corner of both side panels.  
1. Gently place stove on its back on a flat surface.  
2. Remove the heater cover retaining screws located on  
the bottom of the stove and lower heater and light as-  
sembly out onto the floor.  
!
NOTE: To release Cams ensure arrow on Cam is fac-  
ing up.  
3. Remove all of the mounting screws on the heater cover  
9
 
and separate the cover from the heater and light as-  
sembly.  
4. Lift the top off of the unit. Carefully remove the mirror  
and store in a safe place to prevent damage.  
4. Locate the heater assembly and disconnect the wiring  
connections noting their original locations.  
5. Locate the circuit board on the rear wall of the unit.  
6. Remove wiring connections from circuit board noting  
their original locations.  
5. Remove heater mounting bracket screws and set aside  
heater assembly.  
7. From inside the unit, break off the 4 mounting studs  
by grasping with pliers and twisting on the protruding  
part of the stud, push the remainder of the studs out  
through the back panel.  
6. Properly orient the new heater assembly and connect  
all of the wiring clips and connections.  
7. Reassemble in the reverse order as above.  
!
NOTE: New mounting studs are supplied with the  
replacement circuit board  
TO REPLACE THE POWER CORD  
8. Reassemble in the reverse order as above.  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
TO REPLACE LOg SET DRIVER  
BOARD - DS7425DLX MODEL ONLY  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
1. Gently place stove on its back on a flat surface.  
2. Remove the heater cover retaining screws located on  
the bottom of the stove and lower heater and light as-  
sembly out onto the floor.  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
3. Remove all of the mounting screws on the heater cover  
and separate the cover from the heater and light as-  
sembly.  
1. Open door by pulling the handles.  
2. Loosen the 2 retainers on the inner sides of the unit by  
turning counter clockwise.  
4. Locate and disconnect the power cord wiring connec-  
tions noting their original locations.  
3. Remove 4 screws that secure the top on the rear of the  
unit.  
5. With needle nose pliers grasp the power cord strain  
relief grommet from inside the heater cover and push  
while twisting to remove.  
4. Lift the top off of the unit. Carefully remove the mirror  
and store in a safe place to prevent damage.  
5. Locate the circuit board on the rear wall of the unit.  
6. Pull the power cord out through the hole in the heater  
cover.  
6. Remove wiring connections from circuit board noting  
their original locations.  
7. Install the new power cord through the hole in the  
heater cover and connect all of the wiring connections  
in their original locations.  
7. From inside the unit, break off the 4 mounting studs  
by grasping with pliers and twisting on the protruding  
part of the stud, push the remainder of the studs out  
through the back panel.  
8. Install the power cord retaining grommet on the power  
cord and insert into the hole in the heater cover.  
!
NOTE: New mounting studs are supplied with the  
replacement circuit board  
9. Reassemble in the reverse order as above.  
8. Reassemble in the reverse order as above.  
TO REPLACE REMOTE CONTROL  
RECEIVER BOARD  
WARNINg: If unit was operating prior to servicing  
allow at least 10 minutes for light bulbs and heating ele-  
ment to cool off to avoid accidental burning of skin.  
WARNINg: Disconnect power before attempting any  
maintenance or cleaning to reduce the risk of electric  
shock or damage to persons.  
1. Open door by pulling the handles.  
2. Loosen the 2 retainers on the inner sides of the unit by  
turning counter clockwise.  
3. Remove 4 screws that secure the top on the rear of the  
unit.  
10  
 
TROUBLESHOOTINg gUIDE  
PROBLEM  
CAUSE  
SOLUTION  
general  
Circuit breaker trips or fuse  
blows when unit is turned on  
Short in unit wiring.  
Trace wiring in unit.  
Improper circuit current rating  
Additional appliances may exceed the current rating  
of the circuit breaker or fuse. Plug unit into another  
outlet or install unit on a dedicated 15 amp circuit.  
Unit turns on or off by itself  
Remote control has a similar frequency  
to other remotes in the area.  
Replace Remote Control  
Radio frequency disturbance from out-  
side sources.  
Replace hand held remote control and receiver board  
where necessary.  
Defective circuit board  
Replace circuit board  
Lights dim in room while the unit Unit is drawing close to circuit current  
Move the unit to another outlet or install unit on a dedi-  
cated 15 amp circuit  
is on  
rating  
Power cord gets warm  
Normal Operation  
The power cord may get slightly warm to the touch  
when the heater is on  
Defective power cord  
Replace power cord if cord gets hot to the touch.  
Appearance  
Stove does not turn on  
Improper operation  
Refer to Operation Section  
Initialize the remote control  
Replace main on/off switch  
Remote control not initialized to stove  
Defective main on/off switch  
Defective remote control  
Install new battery into the handheld transmitter. Re-  
configure remote where necessary  
Replace remote control circuit board where necessary  
Replace remote control switch board  
Replace circuit board  
Defective remote control switch  
Defective circuit board  
Loose wiring  
Check wiring connections  
No incoming voltage from the electrical  
wall socket  
Check Fuse/Breaker Panel  
Flame Frozen  
Defective flame motor  
Loose wiring  
Replace flame motor  
Check wiring connections  
Replace light bulbs  
Flame not bright or flame not  
Burnt light bulbs  
visible  
Loose wiring  
Check wiring connections  
Replace light harness  
Replace light bulbs  
Defective light harness  
Burnt light bulbs  
Log set dim, not glowing  
Flame Shutter  
Defective flame motor  
Log set not positioned properly  
Replace flame motor  
Check log set for proper fit  
Light leaking around the log set  
Heater  
Heater is not turning off  
Improper operation  
Refer to Operation Section  
Replace heater on/off switch  
Trace wiring in unit  
Defective heater on/off switch  
Loose wiring  
Defective remote control  
Defective circuit board  
Replace remote control  
Replace circuit board  
11  
 
PROBLEM  
CAUSE  
SOLUTION  
Heater Continued  
Heater is not turning on  
Improper operation  
Refer to Operation Section  
Defective heater assembly  
Defective heater on/off switch  
Build up of dirt/dust in heater assembly  
Defective Motor  
Replace heater assembly  
Replace heater on/off switch  
Clean out heater assembly  
Replace Motor  
Heater is turning off after a  
couple of minutes of operation  
Heater emits an odor  
Normal Operation  
Normal operation is when the heater emits an odor  
for a brief period after the heater is initially turned on.  
The heater is burning off any dust accumulated during  
manufacturing or operation.  
Defective heater assembly  
Improper operation  
Defective thermostat  
Loose wiring  
Replace heater assembly  
Refer to Operation Section  
Replace thermostat  
Heater fan turns on but heater  
lacks heat  
Trace wiring in unit  
Defective heater assembly  
Normal Operation  
Replace heater assembly  
Heating element is glowing red  
Small glowing sections of the element are considered  
normal.  
Defective heater assembly  
If larger glowing sections are causing the heater to trip  
the thermal cutout, unplug unit, discontinue use and  
replace heater assembly.  
Heater fan runs continuously  
Loose wiring  
Trace wiring in unit  
Defective heater on/off switch  
Defective heater assembly  
Defective thermostat  
Replace heater on/off switch  
Replace heater assembly  
Replace thermostat  
Noise  
Excessive noise with the heater  
on  
Dirty blower assembly  
Clean blower assembly  
Replace heater assembly  
Defective blower assembly  
Grinding or excessive noise with Moving flame rod hitting or rubbing  
Ensure rod is straight and mounted properly in the  
bracket, spinning freely away from other components.  
Replace if necessary.  
the heater off  
against internal components  
Defective flame motor  
Replace flame motor  
12  
 

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