Question about Grundfos Plumbing

1 Answer

Grunfos ch2-50 my water pump works well but the pump doesn't stop when no water is used?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Vice President:

    An expert whose answer gotĀ voted for 100 times.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 221 Answers

Can you describe the pump you have? Is it used for household water or a sprinkler system? Typically a household pump will have a storage tank and a pressure switch. 90% of the problems with a pump not turning off is due to the pressure switch.

Posted on Oct 14, 2013

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

WHY DOES MY BOILER PUMP CONSTANTLY RUN


there is usually a pressure switch this may be an indication of the relay switch not opening and closing properly....shut off power then remove the protective cover (usually on top of motor) inspect the relay contacts they may have some burn marks take an emerey cloth or fine sand paper and slide between contacts hope that works

Aug 02, 2014 | Grundfos Pumps Grunfos UP15-42F 1/25 HP...

1 Answer

I have low pressure at house, There is no problem


I am just guessing but it appears there is a restriction such as a partally closed valve.

Sep 01, 2013 | Grundfos Pumps Grunfos UP15-42F 1/25 HP...

1 Answer

Is there a timer for a up1529sf?


Plug grunfos into any timer with 3-prong outlet.
Analog: Intermatic TN311C up to 3-on-off per day minimum 1/2 hour
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#TN

Digital: Woods 50009 or 59377: 7-day programming down to minute
http://waterheatertimer.org/Woods-timers-and-manuals.html#50009

Generally a Grunfos without timer will operate each time water temperature inside pipe falls below 90 degrees.
http://waterheatertimer.org/Water-heater-recirculation-system.html
So when timer turns ON, then grunfos receives power and thermostat must sense temps below 90 before pump turns on.

Mar 12, 2013 | Hardware & Accessories

1 Answer

My reverse osmosis system causes my Grunfos pump to cycle on and off for two hours aftr drawing a gallon of water from the reverse osmosis. Is there way to fix this so that the pump doesn-t cyle on an


HI THIER MR.STEELE. MY NAME CANDY A..I COULD TOTALY UNDERSTAND WHEN SAY THAT THE CYCLING OF YOUR PUMP TURNING ON &N OFF CAN GET VERY ANNOYING.LET ME ASK U A QUESTION.? HAS THIS CONSTENT CYCLING CAUSE YOUR POWER BILL TO INCREASE? OK NOW ,LETS SEE WHAT WE CAN DO TO FIX THIS PROBLEM OF YOURS..THE ITEM THAT TELLS YOUR PUMP WHEN TO COME ON. HAS TO HAVE SOME KIND OF SETTINGS ADJUSTMENT.ON IT WHAT U HAVE TO DO IS.SPREAD 4 IT TOO COME ON WHEN U WANT IT TOO.

Dec 23, 2011 | Grundfos MQ3-35 3/4 HP Pressure Booster...

1 Answer

Hi, I have a Grunfos mq cold water booster pump. It is cutting in and out when the water is not in use, Turns on for 15 seconds tehn off for a minute. I have checked for obvious above ground leaks which...


First check with a pressure gauge to see that the pressure is, indeed, dropping. Then, if it is possible, turn off the outlet valve to isolate the pump.
If pressure is still dropping, there is probably a check valve on the inlet of the pump that prevents water from the high pressure side from leaking back to the inlet piping side.
To test this, let the pump run and pressurize the house and immediately close the valve for the incoming water. If the pressure holds, then open the inlet valve and see if the pressure drops. If it drops, the inlet check valve has to be replaced (or cleaned).
Gary

Feb 19, 2011 | Grundfos Plumbing

2 Answers

Where can I get the wiring diagram for the Laing Autocirc? I want to wire in a momentary switch so that when I am ready to get in the shower I hit the switch and the pump runs until the water is warm and...


If you have the same Autocirc product I have, then it cannot be taken apart. The timer seems to be connected and sealed together with the pump. If yours is different, answer back with the wires that you can see and we'll see if the timer can be by-passed.
http://waterheatertimer.org/Water-heater-recirculation-system.html

With the ordinary Grunfos-type pump that is not on a timer, you can add a switch and have the pump work on demand as you describe.

And they make a product that does the specific job you describe. It's called a Demand Pump. Link above shows two different types at page bottom.

I have not tested either Demand Pump shown. They operate on-demand ... when you activate the pump, the pump quickly brings water over from the hot water heater.

So the Demand Pump has a higher volume pump than the Autocirc or Grunfos.

I question a two things about the Demand Pump. 1) How will the increased pump pressure affect local pipes, especially supply tubes under a sink. 2) How HOT does the pump get? If pump gets hot, and it is located under bathroom sink next to paper goods, then that is a hazard. Some regional building codes don't allow ceiling light bulbs in closets because the bulbs get hot and start fires when people pack their closets full.

Oct 23, 2010 | Laing Thermotech Autocirc Undersink...

1 Answer

The hot water comes on immediately and sometimes takes ten to fifteen minutes I have the grundfos up10b5/atlc in my attic. The water is really a hard water kind. Can i clean it?


If your grunfos pump is clogged with hard water sediment, then it probably needs replacement.
You can try soaking it in CLR for a while, but I doubt it can be salvaged.
Sediment adheres to surfaces and there is no way to get inside the pump and scrub it out with a tooth brush.

You might benefit from replacing pump with the type that has a timer. That might save a bit of money. Or you can add a timer to the ordinary grundfos. If pump works fewer hours, it shouldn't clog up as quickly (or so the theory says)
And your water system might benefit by flushing your water heater each 6 months to prevent sediment from forming in the water heater.
http://waterheatertimer.org/Water-heater-recirculation-system.html
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

Oct 21, 2010 | Grundfos UP10-16B5/ATLC Comfort Series...

2 Answers

Grunfos pump that even when all outlet valves are off the pump keeps kicking in an out?


sounds like you have internal leakage therofore pressure decreases and pump cycles to regain it.
not sure what you actuating mechanism is. if its a diaphram it needs to br replaced. if its multiple pistons- your seals need replacing.

Mar 03, 2010 | Grundfos JPS4 1 HP Pressure Booster Pump

1 Answer

My pump stays on after having a shower sometimes...


The pump will start and stop with a pressure switch that is mounted in the discharge of the pump. Sometimes pressure switches get sticky and won't shut off when they are supposed to. You can buy them at most hardware stores, the most common is a Square D, and you'll need to both connect it to the pipe and also to the power line and the pump motor.

Sep 13, 2009 | Grundfos MQ3-45 1 HP Pressure Booster...

Not finding what you are looking for?
Plumbing Logo

Related Topics:

158 people viewed this question

Ask a Question

Usually answered in minutes!

Top Grundfos Plumbing Experts

john h

Level 3 Expert

11064 Answers

yadayada
yadayada

Level 3 Expert

75066 Answers

Andrew Bugbee

Level 2 Expert

210 Answers

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

Answer questions

Manuals & User Guides

Loading...