Refco ENVIRO-DUO - FAQ and Troubleshooting

English Instruction Manual ENVIRO-DUO
21
Fault
Cause Solution
2. Motor Overload
Protection shuts
the motor off
3. 80% Over Filling
Protection, red
light ON
4. Recovery finished,
green light ON
5. Overload during
liquid recovery
process, light
flashes on and off
6. Circuit breaker
shuts off
2. Give the motor
some time to restart
3. Follow the purge
Operation to do the
Purging
4. Turn the Switch two
rounds and point to
position "1", and
then restart the unit
5. Turn the switch two
rounds and stop at
position “1” while
recovering liquid
refrigerant
6. Cool the circuit
breaker down and
restart after 5
minutes
1. The pressure of
the refrigerant
tank is too high
2. Piston ring on the
compressor is
damaged
1. Cooling the tank
down can help to
bring down the
pressure
2. Factory service is
needed
1. Hose connection
loosened
2. Leakage of the
unit
1. Tighten the
connecting hoses
2. Factory service is
needed
Compressor
starts but
stops within
a few
minutes
Low
recovery
speed
Not enough
vacuum