Fengyun Series
Trouble-Shooting
Trip of circuit
breaker or
burn-out of fuse
Check insulation resistance for
grounding; Confirm i
f
air-conditioning unit has
electrical leakage or is
short-circuited
When air-conditioning
unit is powered on,
there is no action
(when the unit is
plugged in, buzze
r
does not sound and
there is no action
after using the remote
controller to start the
unit)
Remote controller
does not receive
signal (when unit is
powered on, buzze
r
shall sound, unless
buzzer is damaged)
Check power supply line
No power
supply
Check and secure the plug to
ensure firm contact
Power plug is not
firmly seated or
connection is poor
Replace controller fuse
Controller fuse
burned out
Secure line connections;
measure output voltage o
f
transformer and replace
transformer if it is incorrect
Connection line of
transformer is loose
or suffers from poor
plugging, or there is
transformer failure
Replace controller
Controller is damaged
Batteries of remote
controller are running
out of power
Remote
controller failure
Receiving head is
loose or plug
connection is poor
Receiving head is
damaged
Replace battery
First press “AUTO” key of
manual switch. If there is no
action check according to the
above method; if the operation
is normal after pressing the
key, recheck to see if the
mounting position of receiving
head and the line connections
are correct; if they are correct,
replace receiving head o
r
remote controller.
Check power voltage. If the voltage is 10% than rated
voltage, check the cause, and improve the powe
r
supply conditions such as adding regulated power
supply.
When turning the
air-conditioning unit to
the “ON”status, trip of
circuit breaker occurs
several minutes later
Power voltage is too low
Failure of air-conditioning unit
or component insulation
failure, short circuit o
r
electrical leakage owing to
insulation puncture afte
r
heating, measure insulation
resistance or check the
components one by one to find
the ones with failure; failure o
f
circuit breaker itself, replace it.
When set circuit breaker
as “ ON ” , it trips
immediately
Air –conditioning unit
cannot be started
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