Question about Plumbing

Open Question

Grundfos pump wiring diagrams

Grundfos 32-60/4 a f a bube heating pump. i need to know whether the internal overload is an adjustable type or a fixed set point. there are some white wires under the wiring box and i am not sure whether this is the overload or not as i dont have a booklet with it

Posted by Anonymous on


6 Suggested Answers

  • 2 Answers

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

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


SOURCE: Wiring diagram needed RV rooftop coleman

Thanks for the response, to be more specific, the nine pin connector was damaged, but I was able to connect the wires back to main unit panel. I am ready to hook to the hunter thermostat and do not know which wires to connect to. This is my problem and I do not want to short something out. Hope this helps, I want to get it installed again. Thanks again for caring....Jerry

Posted on Aug 16, 2008

  • 3 Answers

SOURCE: wiring diagram to connect programmable Thermo to Heat Pump

I don't know if this will be helpful or not, but I just installed a new Honeywell and the Honeywell customer service guy helped me get the wires done correctly. The number is 800-468-1502.

Posted on Jan 05, 2009

  • 1 Answer

SOURCE: Wiring Diagram for Ruud Heat Pump

Unfortunately, the wiring diagrams for heat pumps are not so easy to come up with. The outdoor unit will have its own diagram, but may not include the indoor air handler and will probably not include the thermostat. That said, the orange wire is commonly run from the thermostat to the reversing valve in the outdoor unit. This wire is usually not connected to the indoor airhandler. The orange wire is usually used in a unit that has the reversing valve energized in cool. Ruud, however has its reversing valve energized in heat. Probably not useful but maybe helpful

Posted on Mar 26, 2009

  • 142 Answers

SOURCE: irrigation sprinkler pump, flotec, 230VAC wiring

green to srcew on the motor. this is ground.,
Black on T1
Red on T2

If the rotation is going the wrong way, simply switch the black to T2
Red to T1.

Check this before you couple it to the pump..

Posted on Jun 03, 2009

  • 10 Answers


Posted on Jun 14, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How to unblock. Impella on jprain4 pump grundfos

Grundfos is the only pump I know of that needs to be freed before every heating season. I like Taco.

Feb 19, 2017 | Grundfos Plumbing

1 Answer


Hello anon, this sounds like there is a problem on the electric side of your boiler. Depending on the boiler if its a combi type it is one of the pcb's calling for the pump to run. If at all possible call a specialist who deals with Central Heating and dont try and fix it yourself.

Aug 02, 2014 | Grundfos Pumps Grundfos Redi-Flo2 Electric...

1 Answer

Central heating pump stops running

If you can not hold your hand on the motor for a count of 10 when it has cut out, the motor has overheated and needs to be replaced or find some reason for an overload.

Jun 21, 2017 | Grundfos Garden

1 Answer

Grundfos jetpaq pumps

Sounds like a broken connection or a link in the over temp circuit.
Or the controll is knackered.
I would say it is unlikley the motor has failed, I have stripped water related dead seized grundfoss units and freed them back up and they have outlasted an economy replacement unit.
I am assuming your unit is single phase, if it is there should be an internal OL reset.
I am not sure where exactly on your unit but if you open the control box it should be evident.
If it has tripped I would check the capacitor as over time they diminish in capacity which would lead to overloading or not start at all which would trip the OL very quickly.

Dec 01, 2013 | Plumbing

1 Answer

One of my 3 Grundfos UPS 15-58 FC pumps on my heating system has a slight rattle and is running very hot. The temperature drop across the pump is also much greater than that of the other supply side...

In most cases the impellers are what fail in these pumps. Generally speaking if a bearing is going out you won't have a heat difference you would have a pump that fails to run due to overheating of the thermal overload or the circuit breaker tripping. You can test the pressure to see if it's the same or close to the others 15% or more requires a replacement of the impeller.
Running these pumps without fluid will also quickly destroy impellers within 10 minutes. They require that fluid to stay cool.

Oct 13, 2013 | Grundfos Pumps UPS15-58FC

1 Answer

Wiring diagram for grundfos pump

It depends partly on your phase and voltage requirements, but here is a picture of some options.8_7_2012_4_14_07_pm.png

Aug 04, 2012 | Grundfos Pumps Grundfos CH4-50 11 2Hp...

1 Answer

I just recieved a grundfos add on timer for my small circulating pump the wiring diagram is not clear need some advise on how to wire

More information is needed. Add a comment.
Grundfos makes many models and many parts.
You do not say what wires what are available, or what the instructions say, so the expert is left guessing.

Guessing: Normally this type of timer module has at least 4 or 5 wiring terminals.
Two terminals power the clock motor, and two terminals are for the switch.
Example wiring: power from circuit breaker connects to terminals 1 and 3, line going to motor connects to terminal 4, and neutral from breaker box and neutral going to motor connect to terminal 2.
Another basic wiring plan same as described above:

Add a comment with exact information shown in instructions, and what wires you have, and what each wire goes to.
Of add a comment with in-focus photo posted on flickr.

Open following link for recirculation system resources:

Jul 06, 2011 | Grundfos 505474 24-Hour Progammable...

2 Answers

Just bought a house and it has a grundfos timer/pump attached at the hot water tank. I have no hot water and the timer doesn't turn (as I've seen other timers do). Is it supposed to turn so that the...

Grundfos is a sealed unit and not a repairable item.
The timer dial should turn.
And pins located around dial control ON-OFF functions as timer dial rotates.

Does the receptacle have power?
If receptacle has power, and Grundfos is not working, then it is broken.
Grundfos manuals for UP series pumps do not show breakdown or parts list of any kind.

Bigger question:
Why don't you have hot water?
Is water heater functioning?
Water heater is a separate appliance from Grundfos pump.
Grundfos pump circulates hot water from tank into the lines so there is no waiting for hot water ... but hot water heater should still make hot water.

Add a comment about water heater if that is also a problem.
You could have 2 problems, and water heater is main issue.

For do-it-yourself electric water heater repairs:

Nov 20, 2010 | Grundfos The UP1510B5ATLC 125th HP 1...

2 Answers

Grundfos submersible well pump with Grundfos CU301 control. Control box shows no contact to pump. What is the problem or problems?

Grundfos is a p. o. s. I have a new system cu 301 and I have had to get it repaired twice by Fogle Pump and Supply. These guys are real rip of artists in Washington State and should be reported to the BBB. Dont Use Fogle if you need a well

Sep 15, 2010 | Grundfos RCP-96 Recirculation Pump for...

Not finding what you are looking for?
Plumbing Logo

Related Topics:

102 people viewed this question

Ask a Question

Usually answered in minutes!

Top Plumbing Experts

Donni Steen

Level 3 Expert

659 Answers

Brad Brown

Level 3 Expert

15667 Answers

Tom Chichester

Level 3 Expert

34781 Answers

Are you a Plumbing Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides