99
99
9
The br eake r tr ips at on ce w hen it
is set to "ON".
Measure insulation resistance to ground to see
if there is any leakage.
Trip of breaker or blow
of fuse
The breaker trips in few minutes
when it is set to "ON"
Check po wer sup pl y ci rcuit.
Check if the plug is properly plugged in and
make the loose contact firm.
Ch ang e co ntr ol ler f us e
Check remote controller
Chang e batte ri es
Change control ler
Adjus t setting t emp.
Improper setting o f te mpera ture
Wire loo se or wrong co nne ction
In cool, heat mode,the
outdoor
unit and compres so r
will not run.
Co rr ec tl y wire according to the draw in g
Po wer vol ta ge is too low
Rem ote c ontr ol ler m alfu ncti on
Recei ver is brok en
Con trol ler is broke n
Re ce iv er loose or poor connection
No po wer
Fu se of controller bur nt out
Re mot e controll er is short of power
Power plug is not well plugged in and poor con-
nection
Fasten the wiring; measure the output
v olt a ge o f the t ran s for m er , i f i t is
incorrect, change the transformer
Air conditioner can not start up
The air conditioner
does not react after
it is powered ( after
the plug is inserted,
the buzzer does
not sound and the
remote startup has
no response)
The remote controller
does not receive
signals (aft er it is
powered, the buzzer
will sound, unless it
has malfunction)
The circuit or the part of the air conditioner has
malfunction. They heat and break the insulation
and lead to short circuit or creepage. Measure
the insulation resistance or eliminate the malfunc-
t io n o ne b y o ne. If t he bre ak er i ts el f h as
malfunction, then replace the breaker.
The transformer connection is loose or has bad
contact or the transformer has malfunction
First, press the manual switch button AUTO,
if there is no response,check based on the
above methods. If it runs normally after
pressing the button,check again whether the
installation position and the connection wire
of the reception head is correct. If it is
correct,then replace the receiver or the re-
mote controller.
heck the voltage. If it is lower than 10£¥ of the rated voltage, check the
cause, improve the power supply condition and add the stabilized voltage
power supply.
C ont r oll e r m alf u nct i on (I C 20 0 3 b r oke n ,
creepage of parallel capacitor of relay loop,
relay is broken etc.)
Note: When replacing the controller, make sure insert the wire jumper into the new controller, otherwise the running indicator
turns off 3s and blink 15 times (the dual eight will display C5) but cannot turn on the unit£¨£only for 18k,24k©.
Failure and analysis
Note: When replacing the controller, make sure insert the wire jumper into the new controller, otherwise the
unit display C5 and can't be turned on(only for 9k,12k)
