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Guest haveNoIdea

Oven will not heat

2 posts in this topic

 This is a 20 year old oven/microwave.  The microwave quit so I was "checking" things and bridged an L1 and L2 on the mechanical "digital" clock.  Blew the house main and a few others.  The 15amp fuse was the problem on the microwave, so it works now.

However, no oven.  A repair guy found shorts in the oven selector so I replaced that.  The clock now works if the oven is turned on, but no heat still.  Am getting about 140 volts between any L1 and L2 terminals (oven selector, clock).  Oven indicator lights do not come on when I go to "bake" or "broil" mode.

I have a double breaker for the oven in a closet.  1 black wire going to each.  Should I check for 220 across those 2 wires?  If I have 220, any other components?  Thermostat for oven temp?

Thanks in advance for any help!

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Holy moly!

When you shorted out your L1 and L2 at the oven, it should have ONLY tripped the branch circuit breaker in your house's main panel. Not the house main breaker; guessing its a 100 or 200 amp breaker?

My guess is that the oven branch circuit breaker did NOT trip properly and likely needs to be replaced. That "may" be why you're only getting 140V across a supposed 220v circuit

So, go to the breaker panel and trace back the wiring from the oven. Put your voltmeter on the two lugs of that 220 oven breaker and look for voltage. I'd be very surprised if it's anything different than what you measured at the oven.

*** MY REAL ADVICE is to call-in an electrician, since you shouldn't be messing around inside your house's "live" breaker panel unless you KNOW what you're doing and have someone behind you with a'll know why.

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