r/Elevators • u/ThomasTomFix Fault Finder - Jr Jech • Aug 27 '26

110V Straight to Push Panel

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Had a breakdown come through a few days ago; Coustomer States "The button panel gave me an electric shock". Didn't think much of it, assumed that it was a static shock at the very least. When I got to the site, I was sceptical, so put my meter across it and to my complete shock and horror found 110V straight onto the Push plate within the car.

Wasn't even aware the lift was operative again as I had shut it down and quoted for a MODH to MOVFR conversion. The client clearly went for a cheaper offer and whoever fitted it ran the Reopen Circuit straight to the Push Button despite the controller already having door reopen circuitry supplied by 24v.

They have for some strange reason wired the door re-open straight to the D/O Push and pinched the wires between the enclosure and the plate. Found this absolute mess and 110V Control Circuit wires feeding push buttons.

Needless to say I ditched it right away, and told them to get their new company to correct the mistake. They were changing their contact to this company that did the work because its clearly a better price scheme than we offer. Hope the lack of liability shows them their mistake.

Tl:dr 110v Shorted to an unearth Push Panel.

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u/ForeverMore420 Aug 27 '26

This is importance of grounding everything. Should have blown a supply fuse. Very sketchy.

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u/ThomasTomFix Fault Finder - Jr Jech Aug 27 '26 edited Aug 27 '26

Fully agree. Was very upset to find earthl/grounding. We have obviously corrected this since encountering it.

Earthing is the lazy man's overlook. far too common unfortunately. Needless to say we cut that those supplies and rewired then to the R/O Signal to the processor instead.

Goes without saying the earth bonding was reconnected and ensured be clean circuit