Panasonic · Heat pumps · Panasonic Aquarea Monobloc, generation J (R32)
H20Water pump abnormality
Name in the manufacturer's documentation (service manual): Water pump abnormality
[1]
In plain words (editorial)
The water pump is not working correctly – the unit detects an abnormal pump speed. The service manual lists faults in the pump motor or its wiring.
When to call a service technician: Call the installer – the checks are done inside the unit.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
Detection conditions (source text)
Possible causes (source text)
- Operation stop due to short circuit inside the water pump motor winding.[5]
- Operation stop due to breaking of wire inside the water pump motor.[6]
- Operation stop due to breaking of water pump lead wires.[7]
- Operation stop due to water pump motor IPM malfunction.[8]
- Operation error due to faulty indoor unit PCB.[9]
⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.
The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →
Sources
Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.
- [1] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 164 manufacturer document – copy from a distributor quote verified
h20 water pump abnormality continue for 10 sec.
- [2] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 168 manufacturer document – copy from a distributor quote verified
feedback of rotation > 6,000rpm or < 1,000rpm
- [3] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 168 manufacturer document – copy from a distributor quote verified
abnormality judgment: continue for 5 seconds.
- [4] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 164 manufacturer document – copy from a distributor quote verified
h20 water pump abnormality continue for 10 sec.
- [5] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 168 manufacturer document – copy from a distributor quote verified
Operation stop due to short circuit inside the water pump motor winding.
- [6] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 168 manufacturer document – copy from a distributor quote verified
Operation stop due to breaking of wire inside the water pump motor.
- [7] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 168 manufacturer document – copy from a distributor quote verified
Operation stop due to breaking of water pump lead wires.
- [8] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 168 manufacturer document – copy from a distributor quote verified
Operation stop due to water pump motor IPM malfunction.
- [9] Service Manual – Mono Bloc Unit WH-MDC05J3E5 / WH-MDC07J3E5 / WH-MDC09J3E5 (PAPAMY2003034CE) , p. 168 manufacturer document – copy from a distributor quote verified
Operation error due to faulty indoor unit PCB.