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Grundfos pump stops working after 30 sec - Garden

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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peterrance19
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SOURCE: need to find a user manual for a Grundfos pump

y can download from net

Posted on Nov 14, 2009

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SOURCE: Micro wave stops working after 30 secs

Replace the door interlockswitches - or try re-positioning the existing set. They wear after time

Posted on Aug 17, 2012

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Need to find a user manual for a Grundfos pump I91340615 P10733, Type CH2-30


ManualsLib.com and enter grundfos pump ch 230 in the search area. Make sure to enter with the proper spacing.

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Grundfos booster pump has been revving higher than normal and just stopped working completely. Now it hums on and off a few times and eventually alarms


Over revving is normally caused by air in the pump, or that the impeller has broken off. In you case I think it is the latter and the broken impeller is jamming the motor and that is what is causing the hum. The only thing to do is remove it and strip it down.

I used to live in Leighton Buzzard where the head office is, and have a friend who works for them.

https://www.grundfos.com/
https://www.grundfos.com/

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Grundfos pump problems


I've just had a ideal i35 boiler fitted, the grundfos ump3 economic pump has failed / seized and has been replaced 4 times since the boiler was installed 7 months ago.
It has just stopped working again and ideal are refusing to attend.
any advise would be appreciated.

Aug 14, 2014 | Grundfos Pumps Grundfos UP15-29SF 1 12 Hp...

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Grundfos runs intermittently and needs power cycle to get going again


What type of pressure switch or pump controller on pump? Could be capacitor check. with power on try spinning fan at rear if starts probably cap. Have it checked. Could be controller faulty.

Jan 27, 2013 | Grundfos Pumps Grundfos MQ 3-45 1 HP...

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Need to find a link to the owner's manual/ repair manual for the Grundfos up10-16 b5/atlc......


Following link shows links to grundfos and grundfos manuals.
http://waterheatertimer.org/Water-heater-recirculation-system.html#Grundfos

1) My grundfos stopped working because sediment clogged the pump, and the motor slowed.
When motors slow, they get hot and burn up.
I ask my friend who rewinds motors how to fix it, he said in the old days, they rewound every motor, but today they throw valuable scrap into landfill, and then buy new motors from China.
I told him not to retire, but go to school and teach kids how to rewind motors, and then took apart the grundfos line and cleaned it out with CLR, but it never worked again.

2) If timer stops working, but pump still works, you can buy cheap plug-in timer and connect grundfos to the cheap timer

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Jan 23, 2011 | Grundfos UP10-16B5/ATLC Comfort Series...

3 Answers

I have a grundfos mq3-35b, you turn on the tap pump goes on, then after about 30 seconds it goes off for about 10 seconds and goes back on again, this keeps repeating as long as you have the tap running,...


The control unit is faulty, I had that problem twice.. I have now bypassed the control unit and use a normal pump pressure switch to control..works fine..The Grundfos company at first said I had to have air in the lines then admitted the control assy. was at fault. after two new units in three years I did away with the control unit.

Nov 26, 2009 | Grundfos MQ3-35 3/4 HP Pressure Booster...

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