166
TROUBLESHOOTING
Error code
Contents Error detection / Judgment
RC
display
Outdoor control PCB
Code Sub code
J6 85 0 Outdoor heat exchanger vapor
temperature sensor disconnec-
tion
The outdoor heat exchanger vapor temperature sensor detects
lower than -38
℉ (-39 ℃ ) for 1 minute.
2 Outdoor heat exchanger vapor
temperature sensor short circuit
The outdoor heat exchanger vapor temperature sensor detects
194
℉ (90 ℃ ) or higher for 1 minute.
J7 66 0 Sub heat exchanger liquid tem-
perature sensor disconnection
The sub heat exchanger liquid temperature sensor detects
lower than -38
℉ (-39 ℃ ) for 1 minute.
1 Sub heat exchanger liquid tem-
perature sensor short circuit
The sub heat exchanger liquid temperature sensor detects
194
℉ (90 ℃ ) or higher for 1 minute.
J8 67 0 Outdoor liquid pipe temperature
sensor disconnection
The outdoor liquid pipe temperature sensor detects lower than
-38
℉ (-39 ℃ ) for 1 minute.
2 Outdoor liquid pipe temperature
sensor short circuit
The outdoor liquid pipe temperature sensor detects 194
℉ (90
℃ ) or higher for 1 minute.
LE 75 1 Igniter undervoltage Igniter voltage of lower than 9 V is detected for 1 minute during
engine operation. And misfire is detected.
2 Igniter disconnection Igniter voltage of lower than 0.5 V is detected for 1 minute
during engine operation.
3 Igniter overvoltage Igniter voltage of 17 V or higher is detected for 30 seconds
during engine operation.
10 Starter transformer voltage cut
off
The system will stop immediately when the starter transformer
voltage of 9 V or lower is detected for 1 second during engine
operation. Detection continues for 20 seconds after that.
※ Error is not detected when the starter is ON.
LF 84 0 Engine starting failure When it is impossible to detect engine speed of 700 rpm (min
-1
)
or higher during engine starting.
LJ 75 0 Engine stop Engine speed of lower than minimum engine speed muinus 250
rpm (min
-1
) is detected for 1 second during engine operation.
PE 74 7 Output failure of electromagnet-
ic gas valve
The electromagnetic gas valve output is ON for 2 seconds when
the electromagnetic gas valve should not operate.
PF 60 0 Unintended starter operation The starter pinion motor voltage of 5 V or higher is detected for
3 seconds when the starter is OFF.
P8 74 1 Insufficient engine starting
speed
No engine speed pulse is detected for 5 seconds after starter
ON.
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