ShurFlo 5.7

[Pete Masterson]

Sounds like the pressure sensor in the unit is faulty. I don't know if there's a field repair possible -- but ShurFlo will probably replace the pump under warranty.

Pete Masterson

'95 Blue Bird Wanderlodge WBDA 42

El Sobrante CA

"aeonix1@mac.com"

On Dec 10, 2008, at 7:58 PM, Ryan Wright wrote:

Hi folks,

I've got a problem with my relatively new ShurFlo 5.7 water pump.

ShurFlo doesn't know what to tell me, other than to send it back to

them, but before I do I'd like to see if anyone here has experienced

similar behavior.

The pump runs for about 30 seconds, then cuts out for a couple of

seconds as if it's reached it's target pressure despite my faucet

being wide open. Then it runs for 5-10 seconds, cuts out, and repeats

this behavior indefinitely. If I open more faucets, I can hear the

pump boost it's operating speed and it runs slightly longer between

cutting out. After a few minutes of this on & off behavior, the stops

become more abrupt and I can hear a relay inside the pump flicking off

during each cut.

Anyway, I'm assuming the pump is faulty and will be returning it to

ShurFlo, but I did want to ask here first. I thought these pumps were

supposed to adjust their speed in real time to deliver just the amount

of water needed, not shut down entirely? My intention is to buy a new

one right now and keep this one as a spare after ShurFlo replaces it,

but I'm also concerned of the remote possibility I bought too much

pump for my coach's plumbing system and a new one won't behave any

better. What do you think?

-Ryan

'86 PT-40 8V92

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