When I run my two window units at the same time why does the breaker arc/spark? It rarely trips the breaker.
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June 5, 20150 found this helpful
That breaker is worn out and/or damaged. They are not repairable. Replace it, and smash the bad breaker with a hammer to ensure it will never be used to burn your house down.
June 8, 20150 found this helpful
Excellent advice Helmut!
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