Blower keeps tripping the braker

jhay6481

I have a 2001 Rinker 270 the blower keeps tripping the breaker I replaced the blower same problem I replace the breaker same problem please help

craigswardmtb

Check the wires at the breaker.  My guess is you have a loose ground somewhere in that circuit.  You can check the ground from the blower back to the bonding bar as well.  Mine is located in the engine room below the battery switches. 

In my mind its either got to be a wiring issue or the breaker is bad.  If you have an extra acc breaker not being used than switch the blower and acc breakers.  Confirm they are the correct size.  Both are probably 10amp.  This will rule out or confirm the breaker as the issue.

jhay6481

It is a 6 amp I already switched it out with a 10 and still Trip... so you're saying there will still be a bar somewhere

Handymans342

If your vent hose is plugged the fan may pull too many amps. Does the breaker blow immediately or does it take a few seconds? 

craigswardmtb

Yes.  I would reach out to Rinker and ask them to send you the wiring diagram.  Yes on the bonding bar.  Essentially where all ground wires terminate.  The wiring diagram will give you an idea where it is and if there is one up at the helm as well.

raybo3

Need a little more info..... Does it trip as soon as you turn it on? Does it run for a few seconds then trip?

Handymans342

Thats what I said Ray!!!!!!! LOL

MarkB

Handy what makes you think the amps would go up if the duct is plugged? By the way we are talking about a 4" duct.

raybo3

MarkB my guess would be the blower is dead heading so more resistance on the fan blade?  So higher amps.....

jhay6481

It comes on for about 5 seconds then trips when I put the new one in I did not have it connected to the duckss and still trips

jhay6481

Thank you guys so much I found the problem the blower switch Down Below near the generator start switch was on I do not have a generator for some reason it was causing it to trip

Handymans342

Wierd

MarkB

Ray. My question was not really a question. I'm an engineer and spec pumps and fans as a living. 

If you dead head a pump the amps go down. Not up. For amps go go up you need to move fluid (water or air). An impeller that's just spinning around, sloshing in still fluid (when it is dead headed) does not draw many amps. It will overheat though as there's no new fluid to refresh and cool the casing.

raybo3

Yes I totally understand how deadheading a pump or fan and the amps go down. I was thinking that that is what Handy was thinking. I am an electrician and (back in the day...LOL) installed many pumps. Now I fix trains and no pumps on those...lol 

MarkB

Ok Ray.  You and I are on the same page. 

Just wanted to make sure handy knows how these things work. Lol.

Handymans342

Don't need blowers with diesels just sayin 

Black_Diamond

Actually many boats with diesels DO have blowers, not for moving fuel fumes, actually to pull air in for the engines. 

MarkB

And hydrogen build up from batteries.  Should always run the blower.