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Onan 5kw breaker

DC
David Cheyette
Mon, Jun 22, 2026 2:20 PM

Hi,

My 22 year old ONAN 5KW generator circuit breaker is flipping off (on the genset, not the panel) with only 2.5-3 KW draw on it.  At first, I thought it was my water maker but then I tried with the hot water heater only and had the same issue.

Brief research shows that I just need to replace the old breaker.  Has anyone had this issue on their generator and can provide some words of wisdom 😊?

Thanks!

David Cheyette
Maisy
NT 37-100, Friday Harbor, WA

Hi, My 22 year old ONAN 5KW generator circuit breaker is flipping off (on the genset, not the panel) with only 2.5-3 KW draw on it. At first, I thought it was my water maker but then I tried with the hot water heater only and had the same issue. Brief research shows that I just need to replace the old breaker. Has anyone had this issue on their generator and can provide some words of wisdom 😊? Thanks! David Cheyette Maisy NT 37-100, Friday Harbor, WA