Page 8 of 12
Drawing : - TPC508
Issue
: - 1
Date
: - 29/01/20
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
4. Blocked filter dryer
1. Check all of the above
2. Contact the Factory
Service Center
3. Contact the Factory
Service Center
4. 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
4. Defective Pump
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
4. Replace pump
Hissing noise from
the machine
1. Machine defrosting –
normal operation
N/A
