Haier GE APPLIANCES Connect Series, Service Manual

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CONNECT SERIES SERVICE MANUAL
36
ENGLISH
Troubleshooting
Problem Cause Corrective measure
The heat pump
doesn’t run
The compressor is protected by a 3
minute time-delay.
Please wait for time delay protection.
Wire connection is wrong. Connect wires according to the wiring diagram.
Fuse or circuit breaker is broken Replace the fuse or switch on the circuit breaker.
Power failure. Restart after power is resumed.
Power plug is loose. Re-insert the power plug.
Thermostat has weak battery. Replace the batteries.
Bad cooling or
heating effect.
Air inlet and outlet of the units have
been blocked.
Clear the obstacles and keep the room for the units
well ventilated.
Improper temperature setting Select a proper temperature.
Fan speed is too low. Select a proper fan speed.
Air flow direction is not right. Change the direction of air louvers.
Doors or windows are open. Close them.
Exposed under direct sunshine. Draw curtains or louvers in front of the windows.
Too many heat sources in the room. Remove unnecessary heat sources.
Filter is blocked or dirty. Send for a professional to clean the filter.
Air inlets or outlets of the units are
blocked.
Clear away obstacles that are blocking the air inlets
and outlets of the units.
Problem Time of occurrence Cause
Mist comes from the
heat pump.
During operation.
If the unit is running under high humidity conditions, the
air in the room will condense.
The heat pump
generates excessive
noise.
System switches to heating mode
after defrosting.
Defrosting process will generate some water, which will
turn to water vapor.
The heat pump is buzzing at the
beginning of operation.
Thermostat will be buzzing when it starts working. The
noise will become weak 1 min later.
Dust comes from the
heat pump.
When the unit is turned on, it purrs.
When the system is just started, the refrigerant is not
stable. About 30s later, the purr of the unit will dissipate.
About 20s after the unit first
enables the heating mode or there
is refrigerant brushing sound when
defrosting under heating.
It’s the sound of 4-way valve switching direction. The
sound will disappear after the valve changes its direction.
There is hissing sound when the
unit is started or stopped and a
slight hissing sound during and after
operation.
It’s the sound of gaseous refrigerant that stops flowing
and the sound of drainage system.
There is a sound of crunching during
and after operation.
Because of temperature change, front panel and other
components may be expanding and contracting.
There is a hissing sound when the
unit is turned on or suddenly stopped
during operation or after defrosting.
Because refrigerant suddenly stops flowing or changes
the flow direction.
The unit starts operation after being
unused for a long time.
Dust inside the units come out together with the air.
The heat pump
generates some
smell.
During operation.
The room smell or the smell of cigarette comes out
through the units
Failures Not Caused by Errors
If your heat pump fails to function normally, please first check the following items before contacting service:
The following situations are not operation failures:
NOTICE:
• Check the above items and adopt the corresponding corrective measures. If the
heat pump continues to function poorly, please stop the heat pump immediately and
contact a local service contractor.