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Old 06-03-2019, 11:02 PM   #1
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Vacuum system tripping breaker

Hello all! I'm having a problem with my vacuum tripping the breaker after just a few minutes of use. The breaker it's tripping is labeled as "engine heat" and it's a 15 amp breaker. Just curious if anyone else has had this problem and if so, how it was fixed. I'm not familiar enough (yet!) with all the systems on this MH as I just bought it (used) a few weeks ago and just returned from a two week trip out west. I do know this same breaker powers the GFCI in the wet bay because I thought it was bad at first, I tested it and it wouldn't reset, then I found the tripped breaker and once it's reset, the GFCI can be reset. I'm thinking it may just be a weak or bad breaker and I may replace it just to see if that fixes the problem. The vacuum may run 2-3 minutes or 5-10 seconds before tripping the breaker so it is working properly, I assume and not drawing too many amps (???). Thanks for any input!
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Old 06-03-2019, 11:13 PM   #2
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Are you sure the engine block heater isn't turned on ?

That would be approx 10 amp draw.
Many coaches have a switch for turning the block heater off , sometimes by the bed , others on the dash or main control panel .
Have any unlabeled 120 volt switches , that you can't figure out what they're for?
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Old 06-04-2019, 12:05 AM   #3
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Quote:
Originally Posted by Skip426 View Post
Are you sure the engine block heater isn't turned on ?

That would be approx 10 amp draw.
Many coaches have a switch for turning the block heater off , sometimes by the bed , others on the dash or main control panel .
Have any unlabeled 120 volt switches , that you can't figure out what they're for?
I don't think it is, although I haven't specifically checked that, I personally haven't turned the block heater on. I'll check that tomorrow. Not sure about other switches as well since I haven't had this unit long but I'll look into that as well. Thanks for the reply, could be related to the things you mentioned!
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Old 06-04-2019, 06:22 AM   #4
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You should have a switch on the dash labeled engine heat. It's a 12v switch that controls a relay back in the chassis battery area. Normally, there is an outlet with a plug above the chassis batteries where the block heater plugs in. You can try unplugging that then running the vacuum to see what happens. If they are on the same circuit, then that could overload the breaker.
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Old 06-04-2019, 05:09 PM   #5
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Quote:
Originally Posted by Lt Dan View Post
You should have a switch on the dash labeled engine heat. It's a 12v switch that controls a relay back in the chassis battery area. Normally, there is an outlet with a plug above the chassis batteries where the block heater plugs in. You can try unplugging that then running the vacuum to see what happens. If they are on the same circuit, then that could overload the breaker.
Well, both you and Skip were correct, the engine block heater switch was on. I guess I didn't pay attention to that on the dash, just shows how being unfamiliar with all the aspects of a new unit can present some issues. I'm finally home and have a few days to look things over and "tinker" with a few things I want to 'improve'. Thanks for the heads up and help in finding the problem guys!
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