Sirge KFR-25GW/BPWa, Service Manual

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Temp sensor is too close to
evaporator or moved
Check the position of sensor
Adjust the position or replace
the sensor
Air inlet/outlet of heat exchange is blocked or low speed of fan motor; indoor air filter is too dirty or blocked
Check indoor/outdoor heat
exchange, speed of motor, air
inlet/outlet
Cleanup the filter, remove the
obstacle
Too much R410A
Too much condensation water
on air intake pipe, high
operating current
Discharge a little R410A
Bad insulation of compressor,
high
operating current,
overcurrent proof
Check start or operating
current
Replace compressor
Improper temp set Check actual ambient temp Reset
3.5 Promptly protected by halt after compressor starts
Reason Check to be made Proposed Remedy
Insufficient R410A
Little or no condensation water
on air intake pipe, operating
current is lower than rated
current
Add R410A
Mixed with air in the system,
vacuum is not good
Power varies when running
Vacuumize the system,
recharge R410A
Blocked caused by water or impurity
Operating current is lower than
rated current, part of the unit
frosts heavily use high pressure N
2
to clean
out the block, revacuumize
and recharge R410A
Damaged compressor, high start current
Check the windings and
insulation of compressor and if
it is locked Replace the compressor
3.6 The units blow out cool air when in heating mode
Reason Check to be made Proposed Remedy
Four-way valve doesnít work
Listen to the units if there is
sounds of valveís working
when heating or cooling
Replace the valve
Faults of control interrupter or
other relevant circuits of the
valve
Check the circuit
Repair or replace the control
board
Insufficient R410A causes the insufficient heating capacity
Little condensation water on
outdoor air intake pipe, low
operating current
Add R410A
Connexity of compressor
Same temp of air intake inlet
and discharge outlet of the
compressor, no condensation in
air intake inlet
Replace the compressor
3.7 The units doesnít work
Reason Check to be made Proposed Remedy
Bad connection of the power
plugs, or no power plug
Check the socket Repair or replace
Outdoor fuse or indoor fuse is
burnt
Check if the fuse is good Replace the fuse