AEC GPWC70, Руководство по эксплуатации

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FAULT FINDING HINTS
CONDITION STATUS TROUBLE SHOOTING
Power is normal, no error
code is displayed, but
machine does not run. 1.Fuse burnt out.
2.Microprocessor board
faulty.
1.Replace the fuse.
2.Replace PC board or set AMS switch
Error code displays ‘00’,
but compressor does not
run. 1. PC1 board on control
Panel faulty.
2.Protection switch faulty.
1. Replace PC1 board or set AMS switch
to manual position.
2. Make correction according to
Appendix 5.
Power fuse burnt out 1. Power cable grounded or
Short circuit.
2. Compressor, pump or heat
dissipation motor damaged.
1. Replace.
2.Repair or replace.
Phase Reversed of power
cable
(Error code display ‘01’) Reverse running of circulation
pump. Inverse any of two live wires.
Anti-freezing
(Error code display ‘02’) 1. Chiller frozen.
2. Anti-freeze switch tripped.
3. Anti-freeze switch faulty.
4. Water tank is out of water.
5. Pump damaged or reverse
running.
1. Open by-pass valve.
2. Raise high temperature. On control
switch or low anti-freeze temperature.
Anti-freeze temperature should not
be lower than 3
℃
(except for special
models)
3. Replace.
4. Check water condition in water tank.
5. Make sure pump is normal.
Insufficient refrigerant
(Error code display ‘03’
or ‘04’) 1. Insufficient refrigerant, low-
pressure switch tripped.
2. Chiller frozen, or pump
damaged.
3.Water by-pass not open,
circulating water too little.
4.Y strainer jammed (On
models without water tank)
1. Add refrigerant. (See Appendix 2)
2. Check if expansion tank holds water.
Make sure the circulation pump is
running.
3. Open water by-pass valve.
4.Clean Y strainer.
Insufficient Radiation
(Error code display ‘05’
or ‘06’) 1. High temperature switch
tripped.
2.filter screen jammed
1. See Appendix 1
2.Clean filter.
Chilled water pump over-
loaded
(Error code display ‘07’)
Cooling fan motor over-
loaded
(Error code display ‘08’)
1.Abnormal voltage. Lack of
phase running.
2.Coil burnt out or bearing
damaged on the motor or
pump.
3.Poor terminal connection or
loose power wires/relays.
4.Relay overload (current is
Set too high)
1. Three phase power source dropped
unstable voltage or lack of phase.
2. Replace bearing or motor.
3. Tighten or replace.
4.Properly adjust overload current.