26
Beer
(1-a) Beer is not cold - No ice is stored and no cooling water is available
Possible Cause
Remedy
1. Refrigeration circuit will not start.
1-1 Power supply off.
1-2 Low voltage
1-3 Voltage drop by shared power supply.
1-4 Overload relay damaged by low
voltage.
1-5 Open circuit.
1-6 Cooling water leaks.
1-7 Defective ice storage control.
1-7-1 Scaled electrode.
1-7-2 Electrode lead has open circuit or
bad contact.
1-7-3 Damaged controller board.
1-7-4 Damaged transformer.
1-8 Defective compressor
1-9 Clogged condenser.
1-10 Condenser fan will not turn.
1-10-1 Open circuit or unplugged.
1-10-2 Damaged fan motor.
1-10-3 Blocked fan.
1-10-4 Condenser low temperature
detected.
1-11 Poor ventilation.
1-1 Check that unit is plugged in and main power supply
leakage circuit breaker (if provided) is not off.
1-2 Check voltage at plug. If 90V or less, change wiring
connections to make it 90V or more.
1-3 Use separate power supply.
1-4 Replace overload relay. Check voltage at plug.
If 90V or less, change wiring connections to make it
90V or more.
1-5 Check open point.
1-6 Check and repair. Fill water tank until water starts
leaking from overflow pipe.
1-7-1 Replace contaminated cooling water. If electrode is
browned, blackened or dirty, polish electrode (do
not change its location).
1-7-2 Repair.
1-7-3 Replace. See (18) of “9. SERVICE DIAGNOSIS”.
1-7-4 Replace.
1-8 Replace.
1-9 Clean condenser and air filter.
1-10-1 Rewire or plug in.
1-10-2 Replace.
1-10-3 Unblock.
1-10-4 Wait for a while.
1-11 Poor ventilation causes lower cooling capacity and
longer ice storage time. Allow at least 43mm
clearance at both sides and 50mm at rear of unit.
2. Refrigeration circuit leaks refrigerant
(evaporator will not refrigerate).
2. Locate and repair leaks. Evacuate refrigeration circuit and
recharge. See nameplate for proper refrigerant charge.
Note: Extend vacuum pump operation to raise vacuum.
3. Clogged capillary tube
3. Replace heat exchanger and drier. If clogged, ice may
start forming in the middle of capillary tube.
4. Cooling water quality
4-1 Cooling water has low conductivity.
4-2 Cooling water added with ice.
4. Cooling does not start with water having low conductivity.
4-1 Replace cooling water with water having proper
conductivity. See “13. MAKING AND SUPPLYING
COOLING WATER”.
4-2 Melted ice water has low conductivity. Replace cooling
water with water having proper conductivity.
5. Defective controller board
5. Restart.
