Topaz TZ-12B, Owner'S Manual

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Portable Air Conditioners
9
Problem Cause Remedy
Compressor runs but
condenser fan does not.
Insufficient Cooling Loose or defective wire Trace and Repair
Shorted or open condenser motor capacitor. Replace capacitor
Bad motor Replace motor
Insufficient airflow through evaporator coil
due to:
- Improper blower rotation (TZ-60B3&4)
- Dirty air filter in unit
- Dirty evaporator coil
- Obstructed air intake
- Ice on evaporator coil
- Low refrigerant
- Check rotation. Change if necessary.
- Replace filter.
- Clean coil.
- Remove obstruction.
- Defrost. Run blower only until ice melts.
- Repair leak and recharge with proper refrigerant.
Unit improperly sized Check unit against size of load. Add additional
air conditioners if necessary.
Noisy operation Improper compressor rotation
(TZ-60B3&4 only) Check rotation. Change if necessary.
Loose cabinet or component part Check all panels and components to make
sure they are fastened securely. Check motors,
blower wheels, drives, bearings, shafts, etc.,
and tighten as required.
Bad motor, compressor, or bearing Replace as necessary.
Water leaks from pan Condensate tank or condensate pump not
installed.
Drain pan plugged
Remove obstruction.
Loose evaporator, drain or condensate pump
hose Check connections and tighten if necessary.
Leaking drain pan Repair or replace drain pan.
Defective condensate pump, obstructed
condensate hose or excessive discharge tube
height Condensate hose run for obstructions or
excessive height above pump (12 ft. max.).
Clear or reroute tube as required. Check pump
and wiring. Replace if required.
Evaporator coil freezing
and unit shuts down Evaporator airflow obstructed. Check for obstructions. Clean filter and coil if
required.
Thermostat freeze protection not working Check that freeze sensor is mounted to coil.