Shurflo Water Pump not working??
Submitted: Saturday, May 03, 2008 at 20:38
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jdwynn (Adelaide)
Bought a camper a few weeks ago. First trip last weekend. Electric water pump decide to stop working (bugger).
It’s a Shurflo 2088 723 244 – 10.6l/min – 45 psi – 12v. Camper only 2 years old and hasn't been used much.
I’ve read these water pumps are very reliable, but it just stopped working without warning. There is no flow at all. Motor does not turn or make any noise.
Electric supply checked and is ok. Blew
water supply pipe backwards just in case. I pulled valve and upper housing off unit but couldn’t see anything.
I’ve yet to find a fuse – don’t think there is one along wire to pump.
Any ideas what might be wrong?
thanks in anticipation
JD
Reply By: Dunaruna - Saturday, May 03, 2008 at 22:15
Saturday, May 03, 2008 at 22:15
If the supply is o/k then the problem is not a fuse. Have you tried hotwiring the pump (bypass the pressure switch)?
AnswerID:
301914
Follow Up By: jdwynn (Adelaide) - Saturday, May 03, 2008 at 22:23
Saturday, May 03, 2008 at 22:23
Dunaruna , I really know nothing about these pumps. Could you explain how you do that. thanks JD
FollowupID:
568003
Follow Up By: Member - Roachie (SA) - Saturday, May 03, 2008 at 22:50
Saturday, May 03, 2008 at 22:50
What he means is that if you look at the wiring on the pump, you'll see that the red and black wires to the motor go in at the end away from the pump head. Of course the black wire is the earth.
The red wire goes from the motor to the pump head and then from the pump head there is another red wire that leads to the power source.
When you say you've checked there is power at the pump, did you mean before or after the pump pressure cut-off switch?
To
check the MOTOR is getting power, you need to use the pointy bit of your multi-meter prongs and pierce the red and the black wires close to where they enter the motor body. If there is power showing there, then the motor could be stuffed. I had to replace a Shurflo shower pump on my Patrol a year or so ago, because water had found it's way into the motor housing and siezed-up the bearing and generally killed it.
However, if there is no power registering on the multimeter, then there could be an earthing issue or a power supply issue.
Check by earthing the black probe to a known-to-good earthing point and see if the meter registers. If so, then the earth wire is suspect.
Hope this helps.
Roachie
FollowupID:
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Follow Up By: jdwynn (Adelaide) - Sunday, May 04, 2008 at 08:16
Sunday, May 04, 2008 at 08:16
Thanks for setting it out for me Roachie. Good news (I think). There was no power to the motor. So I pulled off switch section again, and managed to separate it in 2 this time - exposed switch. I activated it by hand and gave it some power and the pump turned over!! Can only think switch was jammed up. So might persevere with it and see how we go.
FollowupID:
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Follow Up By: Member - Pesty (SA) - Monday, May 05, 2008 at 19:36
Monday, May 05, 2008 at 19:36
Have heaps of experience with these units JD, has it got a pressure shutoff on the end, 2 red wires going into a square box on the end?
If it has these can cause problems, and even the spade terminals not being tight enough.
Sounds like you maybe on the right track with the buggered switch.
Cheers Pesty
FollowupID:
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Follow Up By: jdwynn (Adelaide) - Monday, May 05, 2008 at 20:19
Monday, May 05, 2008 at 20:19
Pesty, it has pressure shutoff. Will look at spade connection - not checked yet and I still have the feeling I havn't really fixed it. Will probably end up renewing switch section though. Cheers JD
FollowupID:
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Reply By: autosparky - Saturday, May 03, 2008 at 23:35
Saturday, May 03, 2008 at 23:35
earths are the normal problems in these cases doesn't take much of a corrosion point to stop things opperating . damn wiring !
AnswerID:
301920
Reply By: psproule - Sunday, May 04, 2008 at 06:14
Sunday, May 04, 2008 at 06:14
If you can verify that the motor still wont run after bypassing the fuse then you may have a seized bearing. I had this happen on ours and a tear-down, clean up and a $10 replacement bearing from CBC had it all happy again.
AnswerID:
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Reply By: jdwynn (Adelaide) - Sunday, May 04, 2008 at 08:19
Sunday, May 04, 2008 at 08:19
thanks all. Seem to have it working it present (see above). Will re-connect it to water now and see how we go.
AnswerID:
301940
Reply By: Dunaruna - Sunday, May 04, 2008 at 10:14
Sunday, May 04, 2008 at 10:14
When you separate the two sections of the switch you will see the actual button that switches the circuit on/off, a bit of inox in the switch may help. Also, the diaphragm that activates the switch could be the culprit, they get a bit too flexible over time. Repair kits are available.
AnswerID:
301953
Follow Up By: jdwynn (Adelaide) - Sunday, May 04, 2008 at 20:14
Sunday, May 04, 2008 at 20:14
thanks Dunaruna. I reckon I should be looking to renew the pump. Will try to source a repair kit this week. Cheers JD
FollowupID:
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Reply By: Von Helga - Monday, May 05, 2008 at 08:10
Monday, May 05, 2008 at 08:10
jdwynn,
Now that you have it working again may i suggest that you find the fuse or put one in the circuit. I would not have unfused hardware connected in my vehicle/trailer.
Cheers
AnswerID:
302076
Follow Up By: jdwynn (Adelaide) - Monday, May 05, 2008 at 20:14
Monday, May 05, 2008 at 20:14
Von Helga, sounds like good advice to me. Cant understand it not beng there. Cheers JD
FollowupID:
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