My digital kiln has started to buzz loudly (so much that I have to yell over it when teaching). Any idea what causes it and how to quiet it down?
One of your relays is about to fail. When the electromagnet inside the relay weakens, it can no longer squeeze the relay contacts tightly together. This causes a buzzing, or chattering.
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2011 South Town East Blvd.
Mesquite, Texas 75149-1122
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