LG · Heat pumps · LG Therma V Monobloc (air-to-water heat pump)
CH67Fan lock error
Name in the manufacturer's documentation (service manual): Fan lock error
[1]
In plain words (editorial)
Fan lock error – the outdoor fan is not turning fast enough at start-up or in operation. The service manual names fan motor damage, an abnormal assembly condition, or a fan jammed by its surroundings.
When to call a service technician: Check that nothing (ice, snow, debris) jams the fan; if the code repeats, contact an LG-authorised service technician or your installer.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
Possible causes (source text)
⚠ 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] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 280 official manufacturer document quote verified
67 Fan lock error
- [2] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 280 official manufacturer document quote verified
Fan RPM is less than 10 for 5 seconds from start-up operation. Fan RPM is less than 40 in operation except for start-up operation
- [3] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 280 official manufacturer document quote verified
Fan motor damage
- [4] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 280 official manufacturer document quote verified
Assembly condition abnormal
- [5] LG Therma V Monobloc – Installation manual (MFL68026607 Rev.21) (MFL68026607 Rev.21_062126) , p. 280 official manufacturer document quote verified
Jammed fan by surroundings