54
OCH733
Check code
1302
(UE)
High pressure trouble
●Diagnosis of defects
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Diagnosis
Remedy
Chart 2 of 4
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Is the indoor unit filter clogged?
Clean the filter.
(Clogged filter)
(No clog)
Continued from the previous page.
Is there dirt on the indoor heat
exchanger?
Is the outdoor unit short-cycled?
Is there dirt on the outdoor heat
exchanger?
Are the pipes clogged or broken?
Wash the indoor heat exchanger.
Solve the short cycle.
Wash the outdoor heat exchanger.
Correct defective pipes.
(dirty)
(dirty)
(short-cycled)
(no dirt)
(no dirt)
(no short-cycle)
Continue to the next page.
Disconnect the TH7 wiring and check the
resistance.
Содержание PUMY-HP36NKMU1
Страница 33: ...33 OCH733 6 WIRING DIAGRAM PUMY P36NKMU3 PUMY P48NKMU3 PUMY P36NKMU3 BS PUMY P48NKMU3 BS ...
Страница 34: ...34 OCH733 PUMY P60NKMU3 PUMY P60NKMU3 BS ...
Страница 35: ...35 OCH733 PUMY HP36NKMU1 PUMY HP48NKMU1 ...
Страница 155: ...155 OCH733 ...