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| Joined: | Mon Mar 21st, 2005 |
| Location: | Otterville, USA |
| Posts: | 12950 |
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What does it mean if the reading between L1 and Def Htr reads 0 (not 120V AC)?
Assuming your meter is set to read AC voltage, it means that there is the same electrical potential at L1 and Def Htr == usually means the board is in defrost mode, trying to energize the heating elements.
I replace the relay on the ADC and tried to trigger the defrost cycle by jumping L1 and Test. The relay does a buzzing sound, almost like a timer, but the defrost element does not get hot.
Not sure about that buzzing bidness-- got too much o' that going on my head! Speculation: it's the wrong relay for the application. Sounds like a well-known phenomenon called "relay bounce" where the improperly energized coil in the relay causes the relay arm to bounce on the contact, rather than stay put, resulting in a poor connection.
BTW what is a terministor?
A solid state device commonly used to measure temperature i refrigerators, ovens, dryers, and dishwashers. And extended application is to make a solid state start relay in compressors.
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