Dimplex EF2870 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
Noise
Excessive noise with the
heater on
Grinding or excessive noise
with the heater off
CAUSE
Improper operation
Defective switchboard
Defective thermistor
Defective control board
Improper operation
Unit requires resetting
Loose wiring
Defective switchboard
Defective heater assembly
Defective control board
Build up of dirt/dust in Heater
Assembly
Defective heater assembly
Normal Operation
Defective heater assembly
Normal Operation
Defective heater assembly
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 control board
Refer to Operation Section
Turn all of the controls to Off and unplug the
unit from the wall for 5-10 minutes, then plug
back in
Trace wiring in unit
Replace switchboard
Replace heater assembly
Replace the control board
Ensure that exterior intake louvers and firebox
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.
Ensure that exterior intake louvers and firebox
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
28" - 9601130800RP
13