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Error mode detected by outdoor unit
Operation of diagnostic function
Check code
F04
F06
F12
F08
P19
H01
H02
H03
P03
P05
P22
P26
P29
Cause of operation
Disconnection, short of discharge
temp. sensor (TD)
Disconnection, short of outdoor temp.
sensor (TE)
Disconnection, short of suction temp.
sensor (TS)
Disconnection, short of outside temp.
sensor (TO)
4-way valve inverse error
∗
After heating operation has started,
indoor heat exchanger temp. lowers
under the specified temp.
∗
After heating operation has started,
outdoor heat exchanger / suction
temp. rises over the specified temp.
Compressor break down
∗
Although operation has started,
operation frequency decreases and
operation stops.
Compressor lock
∗
Over-current detection after
compressor start-up
Current detection circuit error
Discharge temp. error
∗ Discharge temp. (TD) over specified
value was detected.
Power supply voltage error
Outdoor fan system error
Short-circuit error of compressor
driving element
Position detection circuit error
Status of
air conditioner
Stop
Stop
Stop
Continue
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Condition
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Displayed when
error is detected
Judgment and measures
1. Check discharge temp. sensor (TD).
2. Check outdoor P.C. board.
1. Check temp. sensor (TE).
2. Check outdoor P.C. board.
1. Check suction temp. sensor (TS).
2. Check outdoor P.C. board.
1. Check outside temp. sensor (TO).
2. Check outdoor P.C. board.
1. Check operation of 4-way valve.
2. Check outdoor heat exchanger (TE), suction temp.
sensor (TS).
3. Check indoor heat exchanger sensor (TC).
4. Check 4-way valve coil.
5. Check PMV (Pulse Motor Valve).
1. Check power supply voltage. (AC198 to 264V)
2. Overload operation of refrigerating cycle
1. Trouble of compressor (Lock, etc.): Replace compressor.
2. Wiring error of compressor (Open phase)
1. Check outdoor P.C. board. (AC current detection circuit)
1. Check refrigerating cycle (Gas leak)
2. Trouble of electronic expansion valve
3. Check discharge temp. sensor (TD).
1. Check power supply voltage. AC198 to 264V
1. Check lock of fan motor.
2. Check power supply voltage. AC198 to 264V
3. Check outdoor P.C. board.
1. When performing operation while taking-off compressor
wire, P26 error occurs. Check control P.C. board.
2. When performing operation while taking-off compressor
wire, an error does not occur. (Compressor rare short)
1. Check control P.C. board.
<In case of SP40, SP45>