Panasonic · Heat pumps · Panasonic Aquarea Bi-bloc (split), generation L (R290)
F53Main expansion valve overcurrent protection
Name in the manufacturer's documentation (service manual): Main expansion valve overcurrent protection
[1]
This page only quotes the original English documentation. A plain-language explanation has not been written yet, so the page is not indexed by search engines.
For technicians
Detection conditions (source text)
Possible causes (source text)
Safety notes from the documentation
- Always switch off the power before remove and connect the component.[7]
⚠ 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 – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 190 manufacturer document – copy from a distributor quote verified
F53 Main expansion valve overcurrent protection
- [2] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 242 manufacturer document – copy from a distributor quote verified
During operation of cooling and heating, the current flowing through the coil of the main expansion valve is used for abnormality judgment.
- [3] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 242 manufacturer document – copy from a distributor quote verified
40 detections within 20 minutes.
- [4] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 242 manufacturer document – copy from a distributor quote verified
Faulty connector connection.
- [5] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 242 manufacturer document – copy from a distributor quote verified
Faulty the coil of the main expansion valve.
- [6] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 242 manufacturer document – copy from a distributor quote verified
Faulty outdoor unit PCB (main).
- [7] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 242 manufacturer document – copy from a distributor quote verified
always switch off the power before remove and connect the component.