Troubleshooting - Sharp SB-29S Service Manual

Problem
No cold water and compressor not
running.
No cold water and compressor running.
Unit runs noisily.
Water leaks.
Oil on refrigerant lines.
Water overflow from tank cooler.
Hot water leaks.
Water temperature is kept low.
Boiling continue
Hot indicator lamp lights up all time.

TROUBLESHOOTING

Possible Cause
1. No voltage received by water
dispenser.
2. Faulty wires.
3. Faulty starting relay.
4. Faulty compressor overload.
5. Faulty compressor.
1. Faulty a refrigerant leak.
2. Faulty a restriction in capillary
line or strainer.
3. Faulty compressor.
1. Faulty vibrations caused by loose
screws.
2. Faulty vibrations at refrigeration
lines.
3. Faulty compressor.
1. Faulty cracked plastic bottle.
2. Faulty damaged reservoir.
3. Faulty loose faucet or damaged
gasket.
1. Faulty cracked plastic bottle.
2. Turn over the bottle when the
tank cooler is fill.
1. Faulty heater tank leak.
2. Faulty space tank to crack.
1. Disconnection in heating circuit.
2. Erroneous wiring.
1. Erroneous wiring.
2. Poor operation.
1. Faulty PCB Hot display.
14
Corrective Action
1. Plugged into the outlet.
2. Repaired or replaced power
cord ass'y.
3. Replaced starting relay.
4. Replaced compressor
over load.
5. Replaced compressor.
1. Repaired or replaced parts
involved with refrigerant
system.
2. Repaired or replaced capillary
line or strainer.
3. Replace compressor.
1. Turned screws to fit.
2. Fitted refrigeration lines.
3. Repaired or replaced
compressor.
1. Replaced plastic bottle.
2. Repaired or replaced reservoir.
3. Repaired or replaced faucet
and gasket.
1. Unplug service cord and
contact refrigeration
repairman.
1. Replaced plastic bottle.
2. Decrease the water to remain
a half.
1. Replaced heater tank.
2. Repaired space tank.
1. Replace.
2. Repair.
1. Repair.
2. Replace.
1. Repaired PCB Hot display.