eflyguy
Grasshopper
| Joined: | Thu Nov 18th, 2010 |
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| Posts: | 4 |
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Noticed the display on our 6-year-old Whirlpool RBD245PDS14 wall-mount dual oven was blank. Has not been used in days but it was on earlier in the day (we have a counter-top covenvection toaster-oven we use 95% of the time.)
Tried to get it to heat up but it beeped a strange sequence of beeps and nothing happened. Light comes on when you press the light button though.
Pulled it out of the wall, popped the cover, and checked all connections. It looks like new inside - again, we hardly use it - and all connections - to the board, between components, and especially to the supply are solid. I noticed, however, that I could get it to fire up after resetting the breaker, but only for a minute or two before it beeped that sequence of tones then no longer responded to input.
So I put a meter across the supply at the little distribution bus inside, 247 volts in idle, and with both ovens on (after cycling the breaker again) the voltage was only dropping 3-4 volts, so no issue with wiring.
I looked over the schematic and figured out that the transformer mounted away from the control board supplies power to it, so I checked the resistance - all was good there - and then voltage to the board - 25V - all good there as well.
So at this point I'm pretty convinced it's the control board. Anything else I can check to confirm that? There doesn't appear to be much else in there, everything feeds off that one board with the exception of the little sister board mounted on the side, but it only has a number of small relays (?) on it.
Thx!!
..a
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