Cadet RM151 Installation Guide download pdf (Page 6)

Symptom Problem Solution

MAINTAINING YOUR HEATER

Troubleshooting Chart

WARNING! Before removing grill, turn the electrical power off at the electrical panel

board (circuit breaker or fuse box). Lock or tag the panel board 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.

WARNING: Any other service not detailed in this Owner’s Guide should be performed by an

authorized service representative.

Maintenance As Needed, or every six months minimum.

*CONSULT LOCAL ELECTRICAL CODES TO DETERMINE WHAT WORK MUST BE PERFORMED BY QUALIFIED

ELECTRICAL SERVICE PERSONNEL

Breaker trips

immediately upon

energizing heater.

1. Incorrect supply voltage.*

2. Overloaded circuit.*

3. A short circuit exists in the

supply or heater wiring.*

4. Defective circuit breaker.*

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.

Heater fan

operates,

but does not

discharge warm

air.

1. Insufcient element tempera-

ture.

2. Incorrect supply voltage.*

3. Element has failed.*

1. Allow a few moments for element to reach operating temperature.

2. Verify that supply voltage matches the heater rating.

3. Replace element.

Heater will not

shut off.

1. Heat loss from room is great-

er than heater capacity.*

2. Defective thermostat.

3. Thermostat wired incorrectly

to heater.*

1. Close doors and windows. Provide additional insulation or install a higher-wattage heat-

er 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 50 degrees; replace

thermostat.

3. Refer to thermostat documentation and correct wiring.

Heater discharges

smoke or emits a

burnt odor.

1. Dust, lint or other matter has

accumulated inside heater.

2. Poor or loose electrical con-

nections.

1. Clean heater (see “Maintenance” section above for instructions).

2. Turn off power at circuit breaker. Inspect all supply and heater wire connections to

make sure nothing is loose or poorly connected. Secure or reconnect all loose connec-

tions. Do not reset circuit breaker until all connections have been checked and repaired.

Element heats for

a moment without

the fan turning,

then immediately

stops heating.

1. Defective motor or internal

connection.*

2. Fan or motor jammed.

1. Heater or fan motor requires replacement.

2. Remove obstruction, and press heater manual reset button (see “Operating” section for

instructions).

Heater does not

run.

1. Thermostat set too low.

2. Heater has tripped the

manual reset temperature limit

control.

3. Power not on at the circuit

breaker.

4. Broken or poorly connected

wire(s) to heater.

5. Defective thermostat.

1. Adjust thermostat to a higher temperature until heater operates (see Problem #5 if the

problem persists).

2. Press the manual reset button (see “Operating” section for instructions).

3. Turn on the correct circuit breaker in the main panel.

4. Turn off power at circuit breaker. Check supply wire continuity and proper connection to

heater wires.

5. The entire heater, or any of its components may be checked for continuity to determine

the cause of any problem. Repair or replace the heater or thermostat.

Heater continually

trips the manual

reset temperature

limit control.

1. Dust, lint or other matter has

accumulated inside heater.

2. Airow is blocked.

3. Fan or motor is jammed.

4. None of the above.

1. Clean heater (see “Maintenance” section for instructions.)

2. Remove obstruction. Maintain a minimum distance of 6 inches from adjacent surfaces,

4.5 inches from the oor, and 3 feet for furniture or other objects placed directly in front of

the heater.

3. Remove obstruction, and press heater manual reset button (see “Operating” section for

instructions).

4. Replace heater assembly.

1. It is important that you verify power has been turned off and no

power is going to the heater before proceeding. Circuit breakers

are often not marked correctly and turning the wrong breaker off

could mean electricity is owing to the heater, even if the heater

does not appear to be working. If you are uncomfortable working

with electrical appliances, unable to follow these guidelines, or do

not have the necessary equipment, consult a qualied electrician.

2. Once you verify the power has been turned off correctly, pro-

ceed to the next step.

3. Remove screws and take off grill.

4. Wash grill with hot soapy water and dry immediately.

5. While holding blower wheel (to avoid damage or bending), use

a hair dryer or vacuum on blow cycle to blow debris through the

element (do not touch element).

6. Vacuum blower area without touching the element.

7. Do not lubricate motor.

8. Replace grill and secure with screws.

9. Turn thermostat to desired setting.

10. Turn power back on at the electrical panel board.

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Cadet RM151 Installation Guide Page 6

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