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1993 U225 Water Pump & Water Pump Switch Relay

October 06, 2014, 04:33:49 pm

The water pump relay in my coach is stuck in the "on" position. I see it -- as well as the water pump -- on the wiring diagram but I can't find either the actual relay or the pump. Can anyone point me to the relay and the pump locations?
I see an accumulator tank under the fold out couch/bed but can't imagine being able to do anything under there without taking the couch apart. Is there a trick involved here?

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Re: 1993 U225 Water Pump & Water Pump Switch Relay

Reply #1 – October 06, 2014, 04:50:23 pm

Pump and relay likely outboard of the accumulator (under the sofa). Worse case you may have to remove the 4 bolts holding the sofa bottom.

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Re: 1993 U225 Water Pump & Water Pump Switch Relay

Reply #2 – October 06, 2014, 05:21:08 pm

Wonderful. Thank you wolfe10.

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Re: 1993 U225 Water Pump & Water Pump Switch Relay

Reply #3 – October 06, 2014, 07:20:57 pm

If your relay is not in that location, it may be mounted on an electrical panel like ours. It may be a VW headlight latching relay, silver and square shaped. Aftermarket may be black plastic. I found ours by cycling the switch and finding it by the clicking noise. If yours is stuck on, it won't click.

Pierce

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Re: 1993 U225 Water Pump & Water Pump Switch Relay

Reply #4 – October 06, 2014, 07:55:32 pm

Hi Pierce. I am pretty sure mine sits right next to the pump and naturally it is on the outboard side. It is, as you say, silver and square.
I gave myself some room by removing the 2 inboard couch bolts but it looks like I will need more room to actually get in there and replace the relay.
Does anyone know of a source and part number for this relay? I think I may have seen a link here on the forum somewhere but I am not sure if it was the right part. 

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Re: 1993 U225 Water Pump & Water Pump Switch Relay

Reply #5 – October 06, 2014, 08:15:42 pm

I found the part number discussion at water pump relay.

There are a number of LR35's available on ebay at:
LR35 relay | eBay

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