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PROBLEM CAUSE SOLUTION
Heater
Heater is not turning on, but ame
eect is still functioning
Improper operation
Refer to operation section
Ensure heater is not deactivated (displays -- when
heat is pressed)
Ensure set temperature is above room temperature
Loose wiring Trace wiring in unit
Defective main control board Replace the main control board
Defective heater assembly Replace heater assembly
Heater is turning o after a couple
of minutes of operation
Improper operation Refer to operation section
Build up of dirt/dust in heater assembly
Ensure that exterior intake louvers and rebox cav-
ity are free of dirt/dust. Clean heater assembly with
compressed air.
Defective heater assembly Replace heater assembly
Er1 appears on the display
Wiring for thermistor is loose
Ensure thermistor is securely plugged into the circuit
board
Defective thermistor Replace thermistor
Er2 appears on the display
Build up of dirt/dust in heater assembly
Ensure that exterior intake louvers and rebox cav-
ity are free of dirt/dust. Clean heater assembly with
compressed air.
Defective heater assembly Replace heater assembly
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 o any dust accumulated dur-
ing manufacturing or operation.
Defective heater assembly Replace heater assembly
Heater fan turns on but lacks heat
Improper operation Refer to operation section
Heater turned o too early
If the heater is turned o before it has run for 2 min-
utes the fan will continue to run for 2 minutes to fully
circulate air
Loose wiring Trace wiring in unit
Defective heater assembly Replace heater assembly
Heating element is glowing red
Normal operation
Small glowing sections of the element are consid-
ered normal.
Defective heater assembly
If larger glowing sections are causing the heater to
trip the thermal cutout, unplug unit, discontinue use
and replace the heater assembly
Heater fan runs continuously
Loose wiring Trace wiring in unit
Defective main control board Replace the main control board
Defective heater assembly Replace heater assembly
Noise
Excessive noise with the heater on Dirty heater assembly
Ensure that exterior intake louvers and rebox cavity
are free of dirt/dust.
Grinding or excessive noise with
the heater o
Flicker rod hitting or rubbing against inter-
nal components
Ensure rod is straight and mounted properly in the
bracket, spinning freely away from other components.
Replace if necessary.
Defective icker motor Replace icker motor
1-888-346-7539 | www.dimplex.com
In keeping with our policy of continuous product improvement,
we reserve the right to make changes without notice.
© 2020 Glen Dimplex Americas
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