#1

Thetford cassette C402

in Anything Eriba-related Sat Apr 15, 2023 8:33 pm
by Darryl | 4 Posts

Hi,
Itís spring and just getting the Eriba 542 GT out for a warm up but the flush is not working. As the fuse has well and truly blown the leading suspect is the pump.
But can I get the Ö. thing out. Ive struggled for 3 hours and had to give up. The tube to the pump is one of those reinforced hoses. Incredibly stiff. And I just cant get a purchase to get it out.
429AE531-12B0-4A54-9474-54A2B3BE2041.jpeg - Bild entfernt (keine Rechte)
Any suggestions greatly received.

Dad


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#2

RE: Thetford cassette C402

in Anything Eriba-related Sat Apr 15, 2023 9:55 pm
by chasnick | 69 Posts

Try giving the pump a whack, often it's a small build up of limescale that just needs dislodging.


Skoda Karoq 2.0 Diesel 4x4, 2020 540 Troll GT.
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#3

RE: Thetford cassette C402

in Anything Eriba-related Sat Apr 15, 2023 9:58 pm
by Darryl | 4 Posts

Lol usually the best advice hit with a hammer! But the pump is well out of reach!


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#4

RE: Thetford cassette C402

in Anything Eriba-related Sat Apr 15, 2023 10:36 pm
by JohnE (deleted)
avatar

Thetford's Repair Video

With a pair of rubber gloves, grab the pump's cable and pull steadily - it will come!

Take note of exactly where the pump's located in the flush tank because you need to relocate the new one down there.

You'll need to crimp the new pump's wires to the original's wires (and sleeve with heat shrink) so don't cut them too close to the connector.

Cut about 5mm off the pump end of the flush tube so it's a tighter fit on the new pump.

Either replace with a branded Thetford pump for thirty-odd quid, or a Comet pump for less than half the price.

(The Thetford pump is a rebadged Comet pump anyway)



Last edited Sun Apr 16, 2023 8:54 am | Scroll up

#5

RE: Thetford cassette C402

in Anything Eriba-related Sun Apr 16, 2023 9:59 am
by Darryl | 4 Posts

John
Thatís a great video . And great advice. Thanks very much will give it another go.
Once more into the breach.
Have purchased the comet pump thatís really helpful.

Many thanks

Darryl


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#6

RE: Thetford cassette C402

in Anything Eriba-related Mon May 01, 2023 9:37 pm
by Valjoneribafan | 43 Posts

Had same problem with toilet flush pump, fuse had blown so replaced it but still not working.
I got my hand into the tank but pipe was too stiff so tried to pull the feed wire and out
came the pump, impeller was stuck, sprayed with WD40 and soon had it spinning, thinking
about winter storage may try mix of water and antifreeze same as the car.


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#7

RE: Thetford cassette C402

in Anything Eriba-related Tue May 02, 2023 5:58 pm
by Darryl | 4 Posts

Thanks have decided to not use the pink in the cistern. So have cleaned out the cistern with puriclean . This has removed all the black bits and slime in the tank.
So its pure water from now on. And drain very time we move.


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#8

RE: Thetford cassette C402

in Anything Eriba-related Thu May 04, 2023 10:28 pm
by stujham | 4 Posts

Had exactly same problem last week while away and the 3A fuse had blown, clipped out the plastic end of the pipe as it enters the toilet basin at the top and easily pulled the pump up via the attached pipe.

Pump was seized from the dreaded Pink stuff, spun the impeller around with a screwdriver to free up then ran some detergent and warm water to run it in then tested in bowl of water, a good clean up and all is good again.


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