Gree GWH18AAD-K6DNA1A/I

68
Installation and Maintenance
Service Manual
(11) Other Malfunction
1.IPM module temperature sensor is open-circuited (P7)
+DUGZDUHRIPDLQERDUGLVGDPDJHG3OHDVHUHSODFHPDLQERDUG
2.Overheating protection of IPM module (P8)
ķ
3RRUUDGLDWLRQEHFDXVHWKHPRGXOHUDGLDWRULVGLUW\
ĸ
,30PRGXOHLVGDPDJHG
Ĺ
0DOIXQFWLRQRIRXWGRRUIDQHWF
3.Detection circuit malfunctions of phase-current of compressor (U1)
+DUGZDUHRIPDLQERDUGLVGDPDJHG3OHDVHUHSODFHPDLQERDUG
4.DC busbar voltage is too high (PH)
ķ
,QSXWYROWDJHLVWRRKLJKRUXQVWDEOH
ĸ
+DUGZDUHRIPDLQERDUGLVGDPDJHG
5.DC busbar voltage is too low (PL)
ķ
,QSXWYROWDJHLVWRRORZRUXQVWDEOH
ĸ
+DUGZDUHRIPDLQERDUGLVGDPDJHG
6.Malfunction of ODU DC fan (L3)
ķ
7KHZLUHWHUPLQDORIRXWGRRUIDQPRWRULVORRVHG¿[WKHWHUPLQDO
ĸ
0RWRUGDPDJHGUHSODFHWKHPRWRU
Ĺ
)DQPRWRUPRGXOHRQPDLQERDUGLVGDPDJHGUHSODFHWKHPDLQERDUG$3