Check insulation resistance for grounding;
Confirm if air-conditioning unit has
electrical leakage or is short-circuited
Air –conditioning unit
cannot be st
arted
Trip of circuit
breaker
or
burn-out of fuse
When set circuit breaker as
ON
ā
, it trips immediately
When turning the air-conditioning unit to the
Ā
ON
ā
status, trip of circuit breaker occurs
several minutes later
Both indoor unit
and outdoor
unit do not start
No power supply
Power plug is not firmly seated or
connection is poor
Line connection failure between
indoor unit and outdoor unit
Emission failure of remote
controller
Controller fuse burned out
Check if the connection line
between Hi-volt PCB and Lo-volt
PCB is secure
Check if transformer output line is
secure and if there is voltage output
Check circuit breaker, measure
resistance for short-circuit
Check power supply line
Power plug is not firmly seated
or connection is poor
Check remote controller
Replace controller fuse
Please secure connection line
Check the line connection according to
the electrical diagram and ensure
correct connection
Secure connection line and
check output voltage
Poor cooling
effect
Set temperature is not
appropriate
Check if the cooling (heating)
load is appropriate
Adjust the set temperature
Check the forecasted cooling (heating
)
Failure of
refrigerant flow
Insufficient air
circulation
volume
4-way valve failure
Replace 4-way valve
Insufficient refrigerant
Charge refrigerant
Compressor failure
Replace Compressor
Insufficient flow in valve
Fully open the valve
Clean the filter grill
Block in air filter
Fan speed was set too low
Set fan speed as hi gh
or medium
Mounting position of outdoor
unit is inappropriate
Outdoor side shall have good ventilation and install
proper weather screen
10
10
10
10
10
10
10
10
10
10
Trouble-Shooting
Trouble-Shooting
8
Universal Part
26
Summary of Contents for V1RFI-30
Page 1: ......
Page 8: ...Outline and installation dimensions of outdoor unit Unit mm Bolt Nut Wrench V1RF0 30 ...
Page 9: ...Unit mm Bolt Nut Wrench V1RF0 50 ...
Page 20: ...Exploded View of Components and Parts of outdoor unit 20 V1RF0 30 ...
Page 22: ...Exploded View of Components and Parts of Indoor unit 22 V1RFI 50 ...
Page 24: ...Exploded View of Components and Parts of outdoor unit 24 V1RFI 50 ...
Page 36: ......
