VEHICLE: 2012 Winnebago ERA with a macerator pump to drain the waste water tanks.I had a problem a year or so ago where the pump was apparently blocked with waste material and keep blowing a fuse every time I tired to use it. Took to dealer ... fixed to the tune of $150.00.Since that time I no longer use the black water tank ... only the gray tank. Had no problem earlier this year emptying it ... worked fine. Today nothing. Pump does not turn on. Fuse is fine. I'm guessing maybe the waste pump switch???QUESTION: Has anyone converted their macerator system to a gravity system on a Class B? In my view the macerator pump is a nuisance and just something else to go wrong ... too many times to suit me.Thanks for any thoughts.

I suspect all of the BLACK TANK bottom floor is now solidified since not being used or properly drained anymore. Possibly blocking the drain plug hole.Once everthing turns to solid waste it will be very hard to get it cleaned out...This is what I would investigate first... Maybe remove the pump and associated hose path etc and try to fish a snake or high pressure water hose wand back up inside the black tank. Sometimes you have direct access to the black water tank from the toilet.These are just guesses on my part - It maybe just be a failed motor on the pump... Hopefully your motor pump can be removed and tested - I'm betting the intake is totally stopped up...I have used the portable 12VDC FLOJET 18555-000 Waste Water Pump Kit with a long 3/4-inch water hose. This is a nice RV TOOL BOX item to have around.. Mine has stopped up on me a couple of times but was easy to fix.Roy Ken

The way I read the OP, the problem is that the pump will not operate even though the fuse is fine, so it is not a problem with the tank - and besides he says he is using grey tank only.

Could be something as simple as a plug/connection out of place...I'd call Winnebago for support and ask where to look.

I found that using a 1/2 inch discharge hose it would overheat and internal circuit breaker would blow. Switched to a 3/4 hose and it worked fine.

"RoyB" ... it is definitely not the black water tank. It is clean as a whistle and never used. I am using a composing method right now.The macerator pump and switch worked fine a couple weeks ago when I drained the gray water. Just not working now. The fuse is fine ... so I am thinking switch or as someone suggested from another page ... perhaps a wire. He had a similar problem and it was a loose wire from the pump motor. Just have to find a way to get under the darn thing. Looks like a set of DIY ramps are in order to get this thing up off the ground enough to get under and see what is what.Thanks for your suggestions.

MACERATOR PUMP NOT WORKING ... AGAIN!!!! | Good Sam Community

23 Replies

bullydogs1
Explorer
Jun 16, 2014
Could be something as simple as a plug/connection out of place...I'd call Winnebago for support and ask where to look.
tkcas01
Explorer
Jun 16, 2014
The way I read the OP, the problem is that the pump will not operate even though the fuse is fine, so it is not a problem with the tank - and besides he says he is using grey tank only.
RoyB
Explorer II
Jun 16, 2014
I suspect all of the BLACK TANK bottom floor is now solidified since not being used or properly drained anymore. Possibly blocking the drain plug hole.

Once everthing turns to solid waste it will be very hard to get it cleaned out...

This is what I would investigate first... Maybe remove the pump and associated hose path etc and try to fish a snake or high pressure water hose wand back up inside the black tank. Sometimes you have direct access to the black water tank from the toilet.

These are just guesses on my part - It maybe just be a failed motor on the pump... Hopefully your motor pump can be removed and tested - I'm betting the intake is totally stopped up...

I have used the portable 12VDC FLOJET 18555-000 Waste Water Pump Kit with a long 3/4-inch water hose. This is a nice RV TOOL BOX item to have around.. Mine has stopped up on me a couple of times but was easy to fix.

Roy Ken

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MACERATOR PUMP NOT WORKING ... AGAIN!!!!

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