Manual
  Page 8 of 12 
Drawing  : - TPC302 
Issue  : - 7 
Date  : - 10/12/13 
TROUBLESHOOTING 
S
YMPTOM
C
AUSE
R
EMEDY
Unit inoperative  1. No power to unit 
1. Check the power from 
power supply panel 
Little or no airflow 
1. Loose fan on shaft 
2. Fan motor burnt out 
3. Dirty refrigeration coils 
4. Loose electrical wiring 
1. Tighten fan 
2. Replace the fan motor 
3. See Routine Maintenance  
Section 
4. Check the wiring diagram 
to find fault and repair 
Little or no water 
extraction 
1. Insufficient air flow 
2. Compressor fault 
3. Loss of refrigerant gas 
1. Check all of the above 
2. Contact the Factory 
Service Center 
3. Contact the Factory 
Service Center 
Little or no defrost 
when required 
1. Faulty timer 
2. Faulty by-pass valve 
1. Contact the Factory 
Service Center 
2. Contact the Factory 
Service Center 
Unit vibrates 
excessively 
1. Loose compressor 
2. Damaged fan 
1. Tighten the nuts on the 
compressor mounts 
2. Replace fan 
Water flooding inside 
the machine 
1. Drain pipe blocked/frozen 
2. Drain pipe too high 
3. Crimped or blocked tubing 
1. Clear the obstruction 
2. Ensure that no section of 
the drain hose is above the 
level of the water outlet 
3. Straighten, clear, or replace 
tubing 










