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[ IX Troubleshooting ]
- 184 -
HWE0803A GB
1. Error Code
Discharge temperature fault
2. Error definition and error detection method
1) If the discharge temperature of 120 °C [248°F] or more is detected during the above operation (the first detection), the outdoor
unit stops once, turns to anti-restart mode for 3 minutes, and restarts after 3 minutes automatically.
2) If the discharge temperature of 120° C [248°F] or more is detected again (the second detection) within 30 minutes after the
second stop of the outdoor unit described above, the mode will be changed to 3 - minute restart mode, then the outdoor unit
will restart in 3 minutes.
3) If the discharge temperature of 120°C [248°F] or more is detected (the third detection) within 30 minutes after the stop of the
outdoor unit described above (regardless of the first or the second stop), the outdoor unit will make an error stop, and the error
code "1102" will be displayed.
4) If the discharge temperature of 120°C [248°F] or more is detected more than 30 minutes after the previous stop of the outdoor
unit, the detection is regarded as the first detection, and the operation described in step 1 above will start.
5) For 30 minutes after the stop (the first stop or the second stop) of the outdoor unit, preliminary errors will be displayed on the
LED display.
3. Cause, check method and remedy
1102
Cause Check method and remedy
(1) Gas leak, gas shortage Refer to the page on refrigerant amount
evaluation.(page 157)
(2) Overload operation Check operating conditions and operation status of indoor/
outdoor units.
(3) LEV failure on the indoor unit Perform a heating operation and check the operation.
Cooling: LEV on the indoor unit
LEV1,2,3
SVM1,2
SVA,C
Heating: LEV on the indoor unit
LEV3
SVB
SV4a - 4d
Refer to the page on troubleshooting LEV.(page 279)
(4) BC controller LEV malfunction
Cooling only : LEV3
Cooling main : LEV1,2,3
Heating only or heating
main : LEV3
Defrost : LEV3
(5) BC controller SVM1 and 2 malfunction
-> Cooling only or defrost
(6) BC controller SVA malfunction
-> Cooling only or cooling main
(7) BC controller SVB malfunction
-> Heating only or heating main
(8) Solenoid valve SV malfunction (4a-4c (P72
model) ,4a-4d (P96 and P120 models))
:heating only, heating main
(9) Port address setting error. Confirm the port address of the indoor unit.
(10) Closed ball valve Confirm that the ball valve is fully open.
(11) Outdoor fan (including fan parts) failure, mo-
tor failure, or fan controller malfunction
Rise in discharge temp. by low pressure
drawing for (3) - (11).
Check the fan on the outdoor unit.
Refer to the section on troubleshooting the outdoor unit
fan.(page 279)
(12) Gas leak between low and high pressures
(4-way valve failure, Compressor failure, So-
lenoid valve (SV1a) failure)
Perform a cooling or heating operation and check the opera-
tion.
(13) Thermistor failure
(TH4)
Check the thermistor resistor.(page 217)
(14) Input circuit failure on the controller board
thermistor
Check the inlet air temperature on the LED monitor.