9.
Trouble shooting
FAULT
Fan no
Mechanical damage.
response
External pressure is too high.
Compressor not
start (Jammed)
Motor failure or other components damaged
1. Shut off by high pressure protection,
2. Low pressure protection,green alarm
Press the "O"
button but
3. 80%0.F.P. cable not well connected.
compressor no
response
The "O" light is not bright, Internal! wiring
fault.
High pressure shut off due to wrong
operation, such as:
Motor thermal protector shuts off.
Circuit breaker shuts off.
Compressor start
but stops within a
few minutes
1. 80% over filling protection, red alarm
2. Recovery is over and the unit is.
3. Under low pressure protection, green
4. Overload during liquid recovery, red
The pressure of the refrigerant tank is too
high.
Low recovery
speed
Piston ring of the compressor is damaged.
Connecting hoses are loose.
Unit doesn't pull
out a vacuum
Leakage in the unit.
CAUSE
red alarm light turns on.
light turns on (recovery not finished).
a. Outlet valve not open.
b. Refrigerant tank valve not open.
light turns on.
alarm light turns light.
alarm light goes out after a flash .
ENGLISH
SOLUTION
1. Replace the fan.
2. Factory service required.
1. When recover the liquid, turn the
knob to "START" position, then
restart.
2. When recover the vapour, turn the
knob to PURGE"/""3" position, then
restart .
1. Replace the components.
2. Factory service is needed.
1. Lower the pressure of the unit.
2. Check if the hoses are well connected.
3. Check the connection.
1. Be checked by qualified technician.
2. Factory service required.
Read carefully the Operation Manual.
The compressor will restart automatically
after a few minutes.
Cooling the Circuit breaker down and press
"circuit breaker 'to restart after 5 minutes.
1. Replace with an empty recovery tank
2. Refer to step of self-purge method.
3. Turn the knob to 'START" position,
then restart.
Cool the tank down can help bringing down
the pressure.
1. Replace the components.
2. Factory service required.
Tighten the hose connections.
1. Replace the components.
2. Factory service required.
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