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Troubleshooting
Common section
Notice
When repairing, before the voltage between module PN is measured below 50V, do not touch any terminal
to avoid electric shock.
Breaker tripped
or fuse burnt out
Air
conditioner
does not response
after powered on.
Air
(The buzzer does
not sound after the
conditi
plug is connected
oner
and the unit does
cannot
not response after
start up
the
controller is used
to turn it on)
Remote
controller
not receive signal
(When powered
on, the buzzer
will send out a
sound, unless it is
broken)
When the breaker is set ON, it will
trip at once
When the unit is turned on, the
breaker will trip in a few minutes
No power supply
The power plug is not or poorly
connected
Controller fuse is burnt out
remote
Loose or poor contact of transformer
connection, or transformer malfunction
The controller is broken
Batteries of remote controller are low
does
Malfunction of remote controller
Loose or poor connection of receiving
head
Receiving head is broken
Measure the insulating resistance
for grounding to confirm whether
there is electrical leakage or short
circuit in the unit
Insulation malfunction of line or componen
in the air conditioner. Insulation breakdow
occurs after radiation, which causes shor
circuit or electricity leakage. Measure
insulating resistance or use one-by-on
elimination method;
Malfunction of fuse. Replace it.
Check power supply circuit
Check and plug well plug, make
loosen contact firm
Change control fuse
Secure the wire connection: measure
the output voltage of the transformer
and replace it if the value is wrong
Replace the controller
Change battery
First press the "AUTO" button of the
manual switch. If there is no response,
check according to the above method;
if it is normal after the button is
pressed, check if the installation
location and wire connection of the
receiving head are correct. If correct,
replace the receiving head, or the
remote controller.
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