162
TROUBLESHOOTING
Error code
Contents Error detection / Judgment
RC
display
Outdoor control PCB
Code Sub code
F4 87 0 Excessive compressor intake
temperature
The compressor intake temperature sensor detects 140 ℉ (60
℃ ) or higher for 10 minutes during compressor operation.
2 Insufficient degree of superheat
for compressor intake
After a compressor kicks in, length of time described below
passed and lower than 36
℉ (2 ℃ ) of ⊿ T at suction inlet is
detected for 3 minutes.
1. In case of switch on from remote controller ··· 30 minutes
2. In case of other copmressor starts ··· 15 minutes
HC 70 0 Engine coolant temperature
sensor disconnection
The engine coolant temperature sensor detects lower than 32
℉
(0 ℃ ) for 3 minutes during engine operation.
80 1 Engine coolant temperature
sensor short circuit
The engine coolant temperature sensor detects 248
℉ (120 ℃ )
or higher for 1 minute.
HF EE 0 Periodical inspection When periodical inspection display is set at "DISABLED"
1. Engine running hours muinus last periodic inspection time is
periodic inspection interval muinus 200 hours or more.
When periodical inspection display is set at "ENABLED"
1. Engine running hours muinus last periodic inspection time is
between periodic inspection interval muinus 200 hours and
periodic inspection interval puls 200 hours.
2. Engine running hours muinus last periodic inspection time is
periodic inspection interval plus 200 hours or more.
HJ 80 2 Engine coolant empty After system stop due to overheated engine coolant tempera-
ture, engine coolant temperature is still 194
℉ (90 ℃ ) or higher
after 150 seconds passed.
H3 76 0 Refrigerant high pressure
switch disconnection
The refrigerant high pressure switch 1 or 2 OFF is detected for
3 minutes.
H9 61 0 Outside air temperature sensor
disconnection
The outside air temperature sensor detects lower than -38
℉
(-39 ℃ ) for 1 minute.
1 Outside air temperature sensor
short circuit
The outside air temperature sensor detects 194
℉ (90 ℃ ) or
higher for 1 minute.
JA 73 0 Refrigerant high pressure
sensor 1 failure 1
The refrigerant high pressure sensor 1 detects 551 psi (3.8
MPa) or higher at the start of operation after system stop due to
refrigerant high pressure failure 1 detected by refrigerant high
pressure sensor 1.
1 Refrigerant high pressure
sensor 1 failure 2
When the refrigerant high pressure sensor 1 detects lower than
44 psi (0.3 MPa) for 30 seconds during compressor operation,
the system stops temporarily. (Stopping procedure B.) When
the refrigerant high pressure sensor 1 detects lower than 44 psi
(0.3 MPa) again at the next start of operation, it is identified as
an error.
JC 88 4 Refrigerant low pressure sensor
failure
The refrigerant low pressure sensor detects lower than 12 psi
(0.08 MPa) at the restart of operation after system stop due to
refrigerant low pressure failure.
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