9.3.6 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0)
Error Code
P0
Malfunction decision
conditions
When the voltage signal that IPM send to compressor drive chip
is abnormal, the display LED will show “P0” and AC will turn off.
Supposed causes
●
Wiring mistake
●
IPM malfunction
●
Outdoor fan ass’y faulty
●
Compressor malfunction
●
Outdoor PCB faulty
Trouble shooting:
Check if the wiring between main
PCB and compressor connected by
error and if the wires and connectors
are broken?
Correct the connection or replace
the wires and connectors.
Yes
No
IPM continuity check. Check if the
IPM terminal resistance values are
uniform. Refer to page 64.
Replace the IPM board or replace the
main PCB if the IPM board and main
PCB are integrated together.
No
Check if the outdoor fan runs
properly or the outdoor unit
ventilation is good.
Yes
No
please refer to the solution of fan speed
is out of control.
Yes
Check if the compressor resistance
values are uniform .Refer to page 63.
No
Replace the compressor.
Yes
Replace the outdoor main PCB if the
main PCB and IPM are separate.
46
Innovair Corporation
Nexxos Inverter
Содержание NIN1225C2V31
Страница 6: ...2 2 Part names of Indoor Outdoor units 4 Innovair Corporation Nexxos Inverter ...
Страница 13: ...5 Wiring Diagram 5 1 Indoor Unit NIN516C2V31 ID 11 Innovair Corporation Nexxos Inverter ...
Страница 14: ...NIN522C2V31 ID 12 Innovair Corporation Nexxos Inverter ...
Страница 15: ...NIN1225C2V31 ID 13 Innovair Corporation Nexxos Inverter ...
Страница 16: ...5 2 Outdoor Unit NIN516C2V31 OD 14 Innovair Corporation Nexxos Inverter ...
Страница 17: ...NIN522C2V31 OD 15 Innovair Corporation Nexxos Inverter ...
Страница 18: ...NIN1225C2V31 OD 16 Innovair Corporation Nexxos Inverter ...
Страница 19: ...For NIN516C2V31 OD 17 Innovair Corporation Nexxos Inverter ...
Страница 20: ...For NIN522C2V31 OD 18 Innovair Corporation Nexxos Inverter ...
Страница 21: ...For NIN1225C2V31 OD 19 Innovair Corporation Nexxos Inverter ...
Страница 39: ...9 2 Outdoor unit error display For NIN516C2V31 OD 37 Innovair Corporation Nexxos Inverter ...
Страница 49: ...P U P V 47 Innovair Corporation Nexxos Inverter ...
Страница 50: ...P W P N 48 Innovair Corporation Nexxos Inverter ...
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