Hisense — Fault Codes

48 codes

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36 — Indoor/outdoor communication error

Hi-Flexi

01 — Indoor unit drain pan / float switch abnormality.
02 — Outdoor unit — protection shutdown.
03 — Communication malfunction.
04 — Transmission error indoor ↔ outdoor.
05 — Power source phases abnormal.
06 — Abnormal inverter voltage / voltage drop.
07 — Decrease in discharge gas superheat.
08 — Increase in discharge gas temperature.
0A — Abnormality between outdoor unit and outdoor unit.
0B — Incorrect outdoor unit address setting.
0C — Incorrect outdoor unit main unit setting.
11 — Indoor inlet air thermistor fault.
12 — Indoor outlet air thermistor fault.
13 — Freeze protection thermistor fault.
14 — Gas piping thermistor fault.
19 — Fan motor — overheat / locking.
21 — High pressure sensor fault.
22 — Outdoor air thermistor fault.
23 — Discharge gas thermistor on top of compressor fault.
24 — Heat exchanger liquid pipe thermistor fault.
25 — Heat exchanger gas pipe thermistor fault.
29 — Low pressure sensor fault.
31 — Excessive or insufficient indoor unit total capacity.
35 — Incorrect indoor unit no. / duplication in same refrigerant group.
38 — Abnormality of the pickup circuit for protection in the outdoor unit.
39 — Compressor — instantaneous power failure / voltage drop.
3A — Abnormality of outdoor unit capacity.
3b — Incorrect setting of outdoor unit models combination or voltage.
3d — Abnormality of transmission between main unit and sub unit(s).
43 — Activation of low compression ratio protection device.
44 — Activation of low pressure increase protection device.
45 — Activation of high pressure increase protection device.
47 — Protection device (vacuum operation — EXV stuck open).
48 — Overload / compressor failure.
51 — Inverter current sensor (CT) abnormal / failure.
53 — Inverter error signal detection.
54 — Inverter fin thermistor abnormal.
55 — Inverter failure.
57 — Fan controller protection (overcurrent / low voltage / short).
5A — Abnormality of fan controller heat sink (fin) temperature.
5B — Activation of overcurrent protection (fan controller).
5C — Abnormality of fan controller sensor.
B1 — Compressor protection alarm — cannot be reset from the remote controller.
B5 — Incorrect setting of unit and refrigerant cycle number.
C1 — Incorrect indoor unit connection number setting.
C2 — Incorrect indoor unit connection.
C3 — Incorrect indoor unit connection number setting.