Panasonic · Heat pumps · Panasonic Aquarea Bi-bloc (split), generation L (R290)
F46Outdoor Current Transformer open circuit
Name in the manufacturer's documentation (service manual): Outdoor Current Transformer open circuit
[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
F46 Outdoor Current Transformer open circuit
- [2] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 239 manufacturer document – copy from a distributor quote verified
A current transformer (CT) open circuit is detected by checking the compressor running frequency ( rated frequency) and CT detected input current (< 0.65 A) for continuously 20 seconds.
- [3] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 239 manufacturer document – copy from a distributor quote verified
Continue 3 times in 20 minutes.
- [4] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 239 manufacturer document – copy from a distributor quote verified
CT defective.
- [5] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 239 manufacturer document – copy from a distributor quote verified
Faulty outdoor unit PCB (main).
- [6] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 239 manufacturer document – copy from a distributor quote verified
Compressor defective (low compression).
- [7] Service Manual – WH-SDC0509L3E5 / L6E5 + WH-WDG05/07/09LE5 (R290) (PAPAMY2307068CE) , p. 239 manufacturer document – copy from a distributor quote verified
always switch off the power before remove and connect the component.