Shurflo water pump air lock?
Submitted: Sunday, Jan 13, 2008 at 15:48
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53438
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GoneTroppo Member (FNQ)
Hi all, been off the air for a bit. (had work to do)
Been tidying up the slide on camper and installing the Xantrex Battery Monitor. (Good bit of kit that.)
Now one of the Shurflo pumps doesn't.
The unit has 2 pumps for 2 seperate water tanks. The 100l unit works fine. the 60l doesn't.
It has power to it but no go.
Do these things get a air lock or some such.
I have had these pumps before and they never missed a beat, what gives.
Any thoughts or suggestions most welcome
Reply By: Notso - Sunday, Jan 13, 2008 at 15:50
Sunday, Jan 13, 2008 at 15:50
So does it run but not pump or does it not run at all
AnswerID:
281396
Follow Up By: GoneTroppo Member (FNQ) - Sunday, Jan 13, 2008 at 15:51
Sunday, Jan 13, 2008 at 15:51
Sorry should have been more clear, it does not run at all
FollowupID:
545735
Follow Up By: Member - Roachie (SA) - Sunday, Jan 13, 2008 at 15:55
Sunday, Jan 13, 2008 at 15:55
You'd need to
check firstly to see if there is power getting to the pump. Use a multimeter of
test light and attach to the 2 cables where they plug into the pump (assuming there are spade terminals fitted?)
If there is power, it could be a seized motor or dicky brush etc. I recently had to pull my shower pump apart with a no-go issue. I dismantled it and found the bearings were seized up. Bought a new pump.
Cheers
Roachie
FollowupID:
545738
Follow Up By: Member - Roachie (SA) - Sunday, Jan 13, 2008 at 15:55
Sunday, Jan 13, 2008 at 15:55
Multimeter OR (not "of")
test light.... sorry.....
FollowupID:
545739
Follow Up By: Notso - Sunday, Jan 13, 2008 at 16:01
Sunday, Jan 13, 2008 at 16:01
As it appears that there is power at the pump it could be the pressure switch or as above.
FollowupID:
545741
Follow Up By: GoneTroppo Member (FNQ) - Sunday, Jan 13, 2008 at 16:37
Sunday, Jan 13, 2008 at 16:37
There is power at the pump. It was working yesterday.
It's ony 18 months old with not very much use.
What's the go with the pressure switch?
FollowupID:
545746
Follow Up By: Notso - Sunday, Jan 13, 2008 at 16:55
Sunday, Jan 13, 2008 at 16:55
I assume it is the pressure type pump that shuts off when the pressure builds up. If so there is a pressure switch in the actual pump head, I don't know whether it is separately serviceable or not.
FollowupID:
545748
Follow Up By: Peter 2 - Sunday, Jan 13, 2008 at 19:04
Sunday, Jan 13, 2008 at 19:04
'Yesterday' when it was working was that before you fitted the battery monitor ;-)))
FollowupID:
545771
Follow Up By: GoneTroppo Member (FNQ) - Sunday, Jan 13, 2008 at 19:35
Sunday, Jan 13, 2008 at 19:35
In a word YES
I know where you are going, I checked everything and the 100l pump still works, as does everything else.
I just LOVE electrics.
FollowupID:
545775
Reply By: David from Engine Saver Low Water Alarms - Sunday, Jan 13, 2008 at 17:22
Sunday, Jan 13, 2008 at 17:22
I've had a bit to do with these pumps and usually the problem is the pressure switch.
Give the pump a light tap on the business end and see if it works.
There is an adjusting screw in the centre of the diaphragm and sometimes all is needs is a bit of a tweak.
Under the end cap you will find a micro switch.
I buy these from jaycar (SM 1040) and they fit ok with a bit of fiddling in the pumps we use.
We were unable to obtain the switches from our local distributor as they only source the pump complete. (USA made) so thats why we improvised with the jaycar switch. They are quite cheap too.
Hope this is of help too you.
AnswerID:
281414
Follow Up By: GoneTroppo Member (FNQ) - Monday, Jan 14, 2008 at 19:01
Monday, Jan 14, 2008 at 19:01
Thanks David I've tried the tap no go. So now it's the screw but a bit hard to get at so will have to fiddle a bit.
The supplier has offered a replacement so I guess I'm covered.
FollowupID:
545913
Reply By: Member - Fourplayfull - Monday, Jan 14, 2008 at 21:07
Monday, Jan 14, 2008 at 21:07
Have these pumps on houseboats - just run power directly to the pump to prove motor or switch , unhook both wires into the pressure switch ,connect the red & the black wire from the bottom of the pump to pos. & neg respectively , if pump runs fit new switch if not disect motor ( rarely a problem though)
Individual parts are avail from Breha Industries in
Melbourne - no I am not involved - just a customer for last 20 yrs. The Whisper King model is ideal if installed inside - very quiet .
Cheers
John
AnswerID:
281634