21
Refrigerant Recycle Equipment
BEFORE REQUESTING REPAIR OR SERVICE
Symptom
Cause
Solution
The unit does
not start.
① Power Cord is not plugged in.
① Plug Power Cord in properly.
② The unit stops due to High Pressure
Shut-off function.
② Reduce Discharge Pressure.
③ Breaker is tripped.
③ Reset Breaker.
④ The thermal protector is tripped due
to the motor overheating.
④ Wait until the motor cools down.
⑤ The motor has burned out
⑤ Repair.
⑥ The compressor is locked.
⑥ Repair.
⑦ Wiring fault or disconnection.
⑦ Repair.
⑧ The high pressure switch is out of
order.
⑧ Repair.
⑨ The low pressure switch is out of
order.
⑨ Repair.
⑩ Auto Stop Timer shuts down unit.
(every 20 hours)
⑩ Replace Molecular Sieve Replacement
Kit (AR338) referring to page 17.
The unit stops
soon after
starting.
① The ball valve on the discharge hose is
closed.
① Open the ball valve.
② The liquid valve of the cylinder to be
charged is closed.
② Open the liquid valve.
③ The pressure in the cylinder to be
charged is high.
③ Cool the cylinder.
④ Voltage drop
④ Connect to a 220V to 240V power source.
Use an appropriate extension cord.
The recycle
speed is slow
or the unit does
not recycle.
① The suction hose is connected to the
vapor port.
① Connect it to the liquid port.
② Filter (TF011) is clogged.
② Clean or replace Filter (TF011).
③ The pressure in the cylinder to be
charged is high.
③ Cool the cylinder.
④ The hose has a core depressor.
④ Remove the core depressor in the hose.
⑤ The refrigerant in the cylinder is
condensing at low temperature.
⑤ Wait until operating temperature is
reached.
⑥ The low pressure switch trips.
⑥ Pressurize the suction port side.
Switch the shut-off mode setting to
"Manual".
⑦ Piston Seal Kits in the compressor are
worn out.
⑦ Repair.
⑧ The suction and discharge valves of
the compressor work abnormally.
⑧ Repair.
The unit does
not restart.
① The motor is overheated.
① Wait until the motor cools down.
② The difference in pressure between
the suction side and the discharge
side is too large as the pressure in the
cylinder to be charged is high.
② Balance the pressure.
③ Breaker is tripped.
③ Reset Breaker.
④ The low pressure switch trips.
④ Raise Suction Pressure higher than
atmospheric pressure.
Oil tank full
lamp is on.
① Oil Separator is flooded with oil.
① Discharge oil following the procedure
on page 14.
Oil full fill
lamp lights up
when R134a is
recycling.
① Liquid R134a accumulates in Oil
Separator
① Refer to page 11.
BEFORE REQUESTING REPAIR OR SERVICES
