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Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,465
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Stove top hood controls
Raining all weekend so it's project-palooza. The touchless controls for my stove hood were going wonky so I ordered a new control set. What they sent didn't work so I took the button box apart and cleaned it (lot of oil) and it started working. But not working.
Control box not mounted, held in your hand Springs work fine Button plate works fine. In fact button plate you can get your finger close but doesn't touch a button and it actuates on and off Box mounted, that is held in place in the hood Springs (no button plate) don't work Buttons don't work Box just touching the hood, nothing works It's a plastic box. Any ideas? Seems very odd. New controls on top, old with separate button plate below. No idea what the circuit board is for, I don't have one.  Holding my old control box. Only springs. Works fine.  With the plate, works fine  Held in place in hood. No button plate. Doesn't work. I started the fan at level 1 before holding it up.  Just holding the box against the underside of the hood. Doesn't work. 
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05-29-2021, 11:50 AM
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Location: Charlottesville Va
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Some kind of magnet or electrical interference caused by being near the hood?
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Greg Lepore 85 Targa 05 Ducati 749s (wrecked, stupidly) 2000 K1200rs (gone, due to above) 05 ST3s (unfinished business) |
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05-29-2021, 02:19 PM
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Location: Long Beach CA, the sewer by the sea.
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Quote:
I have a fridge in the garage that leaks enough current that it zings you if you're in bare feet on the concrete. The grounding circuit in my garage is deficient. (Working on it installing a new sub panel and separate ground rod.) |
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05-29-2021, 05:20 PM
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Good question Milt, I am assuming it isn't. I'll check later today. The controls have worked for 10 years or so.
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05-30-2021, 03:34 AM
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The hood itself is just mounted to the wall. There's no ground from the hood to a building ground. The fan is a standard plug that is in a floating outlet i the rafters that is bridging the wire from the breaker box to a wall out next to the stove. it's 3 wire grounded of course.
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05-30-2021, 01:47 PM
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get rid of it and re-purpose some old flip switches from a Jag
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05-30-2021, 03:26 PM
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Location: North of You
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When electronics work by touching or holding them it is typically a capacitance issue.
Your body is acting as a capacitor.
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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05-31-2021, 04:35 AM
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Quote:
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05-31-2021, 08:42 AM
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