Error mode detected by outdoor unit
Operation of diagnostic function
Check code
Indoor unit
F04
F06
F07
F12
F15
F08
F13
F31
L10
P07
P15
P19
H01
H02
Disconnection, short of discharge
temp. sensor (TD)
Disconnection, short of heat exchanger
temp. sensor (TE)
Disconnection, short of heat exchanger
temp. sensor (TL)
Disconnection, short of suction temp.
sensor (TS)
Miss-mounting of outdoor temp.
sensor (TE, TS)
Disconnection, short of outside air
temp. sensor (TO)
Disconnection, short of heat sink
temp. sensor (TH)
Outdoor EEPROM error
Unset model type of service P.C. board
Heat sink overheat error
∗ Heat sink temp. sensor detected
over specified temperature.
Detection of gas leak
∗ Discharge temp. sensor (TD),
Suction temp. sensor (TS) detected
temperature over specified temp.
4-way valve inverse error
∗ After heating operation has started,
indoor heat exchanger temp. drops
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
Status of
air conditioner
Stop
Stop
Stop
Stop
Stop
Continue
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
Displayed when
error is detected
Judgment and measures
1. Check discharge temp. sensor (TD).
2. Check outdoor P.C. board
1. Check
heat exchanger
temp. sensor (TE).
2. Check outdoor P.C. board .
1. Check
heat exchanger
temp. sensor (TL).
2. Check outdoor P.C. board .
1. Check suction temp. sensor (TS).
2. Check outdoor P.C. board.
1. Check temp. sensor (TE, TS).
2. Check outdoor P.C. board.
1. Check outside air temp. sensor (TO).
2. Check outdoor P.C. board.
1. Check outdoor P.C. board
1. Check outdoor P.C. board.
1. Outdoor service P.C. board.
Check model type setting jumper wire.
1. Check screw tightening between P.C. board and heat
sink and check radiator grease.
2. Check heat sink blast path.
1. Check gas leak, recharge
2. Check full open of service valve.
3. Check PMV (Pulse Motor Valve).
4. Check broken pipe.
5. Check discharge temp. sensor (TD), suction temp.
sensor (TS).
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. (50 Hz : AC 198 to 264 V,
60 Hz : AC 198 to 242 V)
2. Overload operation of refrigerating cycle
1. Compressor problem (Lock, etc.): Replace compressor.
2. Compressor wiring error (Open phase)
Cause of errors
To Next Page
Loading...
Need help?
General
