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Customer/Warranty Service: 800-595-9605
Troubleshooting
It is recommended that step B should be performed by a knowledgeable service technician.
The heater does not
turn on
A
Check the breaker in the fuse panel
Check the thermostat batteries if so equipped
Check the reset button on the front of the plastic cover and push to reset
B
Remove the plastic front cover by removing the four screws and lifting up to disengage
the top flange on the cover
Remove the bottom fan baffle screws to expose the PC board and the solid state relay
Inspect the wiring for obvious damage
Use a volt meter to determine if there is power running into the large ceramic terminal
block from the fuse panel
Short the two thermostat wires that run to the board. This will activate the relay and
start the heater. If this works the thermostat is bad. If not proceed
With the thermostat wires connected together check to see if the red LED on the relay
is on. If not, check the voltage to the relay with a volt meter. The voltage to the relay
should be 12 volts DC. Make sure the meter is set to measure DC voltage. If there is
voltage to the relay, then the relay is bad. If there is no voltage to the
Burning smell
A
Nothing inside the heater can burn, however, dust will settle during dormancy and
when the heater is turned on in early fall the burning smell is dust on the plates. It will
subside after a few minutes. It is recommended to vacuum out the front grill and the
ceramic plates before putting the heater in service during the fall season.
B
If the burning smell persists, the unit must be opened-up to determine the cause.
Possible causes are overheating of the 24 volt thermostat module on systems that are
so equipped. Another possibility is a faulty high-limit switch that shorts to ground but
this also causes the heater to automatically shut-down.
The heater gets too
hot causing the high
limit switch to trip
A
One or more of the fans is not working. While the heater is on, use a flashlight to
determine if all three fan motors are running. If not, further testing is required to
determine whether you have a defective fan motor or a defective PC board.
B
Remove the plastic front cover by removing the four screws and lifting up to disengage
the top flange on the cover. Remove the bottom fan baffle screws to expose the PC
board and the solid state relay. With the heater turned on, disconnect the suspected
fan and measure the voltage pins on the PC board to see if there is 12 volts DC going
to the fan. If not, you have a bad PC board. Note: The center fan does not turn on until
5 minutes after the heater has begun operations. The center fan continues to run 3
minutes after the heater has shut off in order to cool the heater down. This test must
be conducted after the heater has been running for 5 minutes if you are checking the
operation of the center fan.
Excessive fan noise
A
Check to see if the excess noise occurs at start up or after 5 minutes of operation, this
will eliminate the two outside fans or the middle fan from the diagnosis. You must
have the unit opened up to replace a fan if necessary.
