Dimplex DF2524L Service Manual page 13

PROBLEM
Heater
Heater is not turning off
Heater is not turning on, but
flame effect is still function-
ing
Heater is turning off after a
couple of minutes of opera-
tion
Heater emits an odor
Heating element is glowing
red
Heater fan runs continu-
ously
Noise
Excessive noise with the
heater on
Grinding or excessive noise
with the heater off
CAUSE
Improper operation
Defective switchboard
Defective thermistor
Defective relay board
Defective display/control board
Improper operation
Loose wiring
Defective switchboard
Defective heater assembly
Defective display/control board
Build up of dirt/dust in Heater
Assembly
Defective heater assembly
Normal Operation
Defective heater assembly
Normal Operation
Defective heater assembly
Defective Heater On/Off Switch
Dirty Heater Assembly
Defective heater assembly
Flicker rod hitting or rubbing
against internal components
Defective Flicker Motor
SOLUTION
Refer to Operation Section
Replace switchboard
Replace thermistor
Replace the relay board
Replace the display/control board
Refer to Operation Section
Trace wiring in unit
Replace switchboard
Replace heater assembly
Replace the display/control board
Ensure that exterior intake louvers and fire-
box cavity are free of dirt/dust.
Replace heater assembly
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.
Replace heater assembly
Small glowing sections of the element are
considered normal.
If larger glowing sections are causing the
heater to trip the thermal cutout, unplug unit,
discontinue use and replace heater assembly.
Replace Heater On/Off Switch
Ensure that exterior intake louvers and fire-
box cavity are free of dirt/dust.
Replace heater assembly
Ensure rod is straight and mounted properly
in the bracket, spinning freely away from
other components. Replace if necessary.
Replace Flicker Motor
3001370100RP
3001380100RP
3001360100RP
Log 3001350200RP
Glass 3001350300RP
3001370100RP
2203610100RP
Log 3001350200RP
Glass 3001350300RP
2203610100RP
2203610100RP
2203610100RP
2203610100RP
2000220100RP
13