103
Air to Water Heat Pump
Service Manual- Versati Series
NBJOUFOBODF
2) Drive Failure Code
Ɣ
The Same Malfunctions for Single-phase Unit and Three-phase Unit
Item
Display on
Nixie Tube of
Outdoor Unit
Display on Wired
Controller
Remarks
Inverter Drive
Failure
DC busbar over-voltage protection PH E5
IPM or PFC over-temperature protection P8 E5
Current sense circuit error Pc E5
IPM or PFC temperature sensor error P7 E5
Compressor current protection P5 E5
DC busbar under-voltage protection PL E5
Compressor startup failure Lc E5
Drive module reset P0 E5
Compressor motor desynchronizing H7 E5
Phase loss Ld E5
Drive-to-main-control communication error P6 E5
IPM protection H5 E5
Compressor overload protection H3 E5
AC current protection (input side) PA E5
Input AC voltage abnormality PP E5
PFC protection Hc E5
Ɣ
The Malfunctions only for Single-phase Unit
Item
Display on
Nixie Tube of
Outdoor Unit
Display on Wired
Controller
Remarks
Inverter Drive
Failure
Charging circuit error PU E5
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