Maintaining Your Heater; Troubleshooting Chart - Cadet Com-Pak CS051 Owner's Manual

Maintenance As Needed, or every six months minimum.
panel (circuit breaker or fuse box). Lock or tag the main disconnect panel door to prevent
someone from accidentally turning the power on while you are working on the heater. Failure
to do so could result in serious electrical shock, burns, or possible death.
Any other service not detailed in this Owner's Guide should be performed by an autho-
rized service representative.
1. It is important that you verify power has been turned off and
the heating element is cool before proceeding. Circuit breakers
are often not marked correctly and turning the wrong breaker off
does not appear to be working. If you are uncomfortable working
with electrical appliances, unable to follow these guidelines, or do
2. Once you verify the power has been turned off correctly, pro-
ceed to the next step.
3. Remove thermostat knob (if any), screws and take off grill.
Symptom Problem
Breaker trips 1. Incorrect supply voltage.*
immediately 2. Overloaded circuit.*
upon energiz-
ing heater.
3. A short circuit exists in the supply
or heater wiring.*
4. Defective circuit breaker.*
Heater fan
operates, but 2. Incorrect supply voltage.*
does not dis- 3. Element has failed.*
charge warm 4. (Model CST only) One of the
air. heater units over temperature con-
trols must be reset.
Heater will not 1. Heat loss from room is greater
shut off. than heater capacity.*
2. Defective thermostat.
3. Thermostat wired incorrectly to
heater.*
Heater 1. Dust, lint or other matter has
discharges accumulated inside heater.
smoke or 2. Poor or loose electrical connec-
emits a burnt tions.
odor.
Element heats 1. Defective motor or internal
for a moment connection.*
without the fan 2. Fan or motor jammed.
turning, then
immediately
stops heating.
Heater does 1. Thermostat set too low.
not run.
2. Heater has tripped the power
reset high-temperature control.
3. Heater has tripped the second-
ary over-temperature fuse.
4. Power not on at the main discon-
nect panel.
5. Broken or poorly connected
wire(s) to heater.
6. Defective thermostat.
Page 6

MAINTAINING YOUR HEATER

Before removing grill, turn the electrical power off at the main disconnect

Troubleshooting Chart

1. Verify that supply voltage matches the heater rating.
2. The total amperage of all heaters on a branch circuit must not be more than
80% of the amperage rating of the circuit breaker and supply wire ratings. Use
a lower wattage heater, or reduce the number of heaters on the circuit.
3. Shorted supply or heater wires may be accompanied by severe sparking.
Inspect all supply and heater wiring insulation for damage. Do not reset the
circuit breaker until all electrical shorts have been repaired.
4. Replace the circuit breaker.
1. Allow a few moments for element to reach operating temperature.
2. Verify that supply voltage matches the heater rating.
3. Replace element.
4. CST models have two heating units with independent over-temperature
controls. One of the high-temperature manual power reset controls may trip
and cut power to one of the heating units, while the other remains running,
resulting in only half output. Reset the heater unit (see "OPERATING
INSTRUCTIONS" section for "Resetting the Manual Power Reset Limit
Control").
1. Close doors and windows. Provide additional insulation, or install a higher
wattage heater or multiple heaters if necessary. (If your circuit is rated for more
capacity.)
2. Adjust thermostat to its lowest setting. If heater continues to run (allow two
minutes for the thermostat to respond), and room temperature is greater than
3. Refer to thermostat documentation and correct wiring.
1. Clean heater (see "MAINTAINING YOUR HEATER" section above for
instructions).
2. Turn off power at circuit breaker. Inspect all supply and heater wire connec-
tions to make sure nothing is loose or poorly connected. Secure or reconnect
all loose connections. Do not reset circuit breaker until all connections have
been checked and repaired.
1. Heater or fan motor requires replacement.
2. Remove obstruction and follow instructions in the "OPERATING INSTRUC-
TIONS" section for "Resetting the Manual Power Reset Limit Control." Test
heater operation. If heater does not run, heater requires repair or replacement.
1. Adjust thermostat to a higher temperature until heater operates (see Prob-
lem #6 if the problem persists).
2. Follow instructions in the "OPERATING INSTRUCTIONS" section for "Re-
setting the Manual Power Reset Limit Control." If room temperature is below
3. A severe over-temperature condition has occurred. Repair or replace heater.
4. Turn on the correct circuit breaker in the main disconnect panel.
5. Turn off power at main disconnect panel. Check supply wire continuity and
proper connection to heater wires.
6. The entire heater, or any of its components may be checked for continuity to
determine the cause of any problems. Repair or replace the heater or thermo-
stat.
4. Wash grill with hot soapy water and dry.
5. While holding fan (to avoid damage or bending), use a hair dryer
or vacuum on blow cycle to blow debris through the top element
(do not touch element).
6. Vacuum fan area without touching the elements.
7. Do not lubricate motor.
8. Replace grill and secure with screws. Replace thermostat knob.
9. Turn thermostat to desired setting.
10. Turn power back on at the main disconnect panel.
Solution
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