Gmr32b Phase Controller Manual — Hot |link|

: Power down and ensure all wiring (1.0~2.5mm copper wire) is securely tightened into the needle-type terminals.

The original GMR32B documentation (often referenced as "GMR32B User Manual V3.1") contains these critical warnings—reproduced here for clarity: gmr32b phase controller manual hot

: If the relay is tripping unnecessarily while hot, use a dedicated contact cleaner to remove oxidation from the internal contacts. AliExpress : Power down and ensure all wiring (1

If you are experiencing overheating or "nuisance tripping," expert reviews and manuals suggest checking the following: gmr32b phase controller manual hot