HAIER CHILLER
charging valve of the condenser slowly, and observe how the liquid sight glass and the condensing pressure
change. If there is refrigerant foam in the liquid sight glass, or the pressure and the admired pressure on the
condition cannot be accordant, that shows the system is lack of refrigerant. As per the actual situation, perform
No3, No4. Until the light glass and the pressure gauge resume normal, shut off the refrigerant charging valve,
and open the liquid supply stop valve slowly. If there is refrigerant foam in the liquid sight glass, or the pressure
and the admired pressure on the condition cannot be accordant, open the refrigerant charging valve to charge
the refrigerant. Repeat the above the procedure, when the liquid supply stop valve is fully open, If there is
refrigerant foam in the liquid sight glass, or the pressure and the admired pressure on the condition can be
accordant, that shows the refrigerant has been charged well. Perform No 5, and record the refrigerant volume.
8.3 Troubleshooting
Section Phenomenon Reason
Solution
Shutoff time over 3s
1.the hole of the valve plug side is blocked
1.Remove the dirt in the hole and install a
filter in front of the valve
1.Voltage is below 85%
1.adjust the voltage within
±
10%
After powered on, the
valve can not open
2.The coil has been burnt out or the
connector falls off
2.If necessary, open the valve to check or change
the coil. New coil must be dipped and dried, and fill
a layer of glue made of quartz and pitch (the weight
proportion 3:1) between the coil and the shell.
1.the hole of the valve plug side is blocked
1.Remove the dirt in the hole
2.The sealed loop of valve plug is worn
out or distorted.
2.change the sealed loop
The gap between the
valve plug and the
valve bracket is not
sealed, there is
leakage
3.Pressure drop between the pressure before
and after the valve is lower 10% than the
weighed pressure.
3.Comply with the requirement
1.sealed cushion is not placed well.
1.place the sealed cushion and tighten firmly
and evenly
The sealed section
between the static
part and movable part
is not sealed well.
2.sealed cushion is worn out or distorted. 2.change
the sealed part
1.pressure relief hole is dirt
1.Eliminate the dirt in the hole
Solenoid
valve
After electrified, the
valve plug does not
start up
2.the improper medium, and the bad
viscosity
2.bad viscosity, enlarge the pressure relief
hole
1.Main switch cannot close
1.close the switch
Compressor Compressor
not
startup
2.fuse is burnt out, and the circuit switch is
not close
2. check if the wiring circuit and the motor coil have
been grounded or in short circuit. check if it is
overload (after troubleshooting),change the fuse
or close the switch to check if the connection is
loose or rusty.
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