Gree GWH18YE-S6DBA2A/I, Service Manual, Page: 81 / 108

Service Manual
4. S ta rt-u p fa ilu re (LC) (AP1 b e lo w m eans c o n tro l b o a rd o f o u td o o r u n it)
Main detection points:
• If the com pressor wiring is correct?
• If the stop time of com pressor is sufficient?
• If the com pressor is damaged?
• If the refrigerant charging amount is too much?
The stop time is not sufficient and
the high and low pressure of system
is not balanced , please start the uni
after 3min
Check the connection situation
of outdoor mainboard A P I and
compressor COMP, and the
connect it according to wiring
diagram
Yes
/ Charge the refrigerant/
according to service
manual
No
_____ ▼______
Replace outdoor
mainboard API
No
,_____ N_____
Replace the
compressor
Yes-
Yes-
End
78
£ Installation and Maintenance