Question about McCulloch Garden

1 Answer

I don't get enough water through the pump to keep it running with pressure. Pump cycles on and off.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 700 Answers

Unfortunately this is rather common problem, there is several solutions, none easy. i assume that you already cleaned inlet filter and connection hose is good diameter. check your mains if it is fully open (open tap in full then back half turn), same with tap connected to your supply hose. try to re-locate washer as close as possible to your mains connector. do bear in mind that these washers require at least 2gallons of water per minute (9 litres per minute)

if this solution do not work, or it is not feasible, find some 20 litres (5gallon) canister which can survive mains pressure, connect it with very short hose to your pressure washer and other end to mains, i know this is not an ideal solution but it will give you about 3min bursts.

if you find my advice helpful, please do not hesitate to comment and leave voe4 for me, thanx!

Posted on Aug 02, 2010


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Why does my pump loose pressure

Sounds like your not using enough water, and or your pipes to sprinkler is to to small, causing pump to build up to cut off head. I cant lay my hands on a performance chart for your pump, but 60 psi cut off and 20 on sounds about right. Try running another tap when your sprinkler is running, and see if this keeps your pump running

Mar 25, 2015 | Utilitech 1-HP Cast Iron Convertible Jet...

1 Answer

GE Dishwasher Model GSD900X-02 drain pressure problem

Wow, good job looking at all the possibilities. I have to ask, since you already bought the pump did you try it? Put the new pump in? Some machines like washing machines use a transmission, it is possible that the pump is sufficient for one function and not another. For what it is worth the first thing I would do is try the new pump. I know it was probably expensive and if it is not the problem you might want to return it but as you have discovered there are not many parts on the machine to fail. Most likely it is the pump or the valves and cillinoyds the pump moves water through like you have already surmised. If you do not wish to install the new on you might be able to uninstall the old one and see what it looks like running dry for just one second. my guess if it is not strong enough to pump the water 12" and a 12" water coulomb is only .5 Lbs (1/2 of a lb.) then there definitely is not enough head pressure on the pump and like you said it would have to be a leak or an open valve (the pump should produce at least 15 to 30 psi, city water pressure in many cites is 35 to 80 psig) so I would go for it, replace the pump. Good Luck.

Sep 14, 2014 | Dishwashers

1 Answer

Grundfos pump problems

There are several possibilities here. All involve water pressure. The first is that you have a water leak between the pump and where the water is going to.
The second is that the pump is not getting enough water to it so it is sucking air well as water in an attempt to give you water perssure. This could be caused by not having an inline "one way" valve on your supply line just before the pump ($30.00).
The third involves two little screws on the control where your electical connection is. These two screws control the high and low pressure settings of your pump. If your high setting is too high the pump will simply keep running trying to do the impossible, If there is not enough difference between the high and low setting the pump will also keep on. running.
Another possibility is that the pump has had debris (sand, dirt, mud, etc) sucked through it and has damaged either the housing or more likely the impeller that spins the water creating the pressure.Ther is also an internal seal that can be damaged by debris.
The final possibility is that the pressure control unit with the two little screws I mentioned earlier has failed and is deffective.

Most importantly if the pump is running hot please stop using it! You are at risk of fire and possibly the loss of your home and loved ones. Grundfos pumps can be serviced by a professional technician, Parts are readily available and not extremely expensive. I would not recommend doing it youself if it is the some specialty tools may be involved depending on the problem. You will become frustrated very quickly.
A fast solution is to buy one of the cheap plastic pumps ($169.00) made in China. They are amazing for the price and will run with no problems for years if your water is free of debris. Fixing your Grundfos may run you the same amount and you maybe without a pump for a week or more depending on the technicians work load.
I am not saying "Don't fix your Grundfos" but you don't need to be in a panic about it either.

Sep 06, 2014 | Grundfos JPS4 1 HP Pressure Booster Pump

1 Answer

Not enough suction

It sounds like it is a jet pump in a deep well. You probably will have to pull the foot valve and clean or replace it. Because of cost I would suggest getting a qualified repair person to check it out.

Jan 23, 2014 | Flotec Plumbing

1 Answer

My whirl pool duet sport keeps having an error message of f21 and 5d. i read that it means the water is not draining right. what can i do to fix this?

F21 means to a long drain.
Basically means that water is not pumping out quick enough. If all the drain lines have been checked for blockages and restrictions the manufacturer recommends the pump is replaced. Some times the impeller can become damaged or the motor which can cause the pump to work slower then it should causing this error code. If you took off the hose from the tub to the pump and found nothing then I doubt there is a blockage in the drum (it would have moved into the drain filter).

If suds are detected continuously by the pressure switch during the drain or spin phases, the washer will fill 4 liters of water and during 5 minutes the unit will rest without tumbling, the water will be drained and it will try to spin or drain again.

If too much detergent was used:
- Run the unit through a RINSE/SPIN cycle.
- Run a NORMAL cycle without adding any detergent.

This should clear the unit of the excess detergent.
1. Check the drain hose and make sure it is not plugged or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump, pressure switch, and Central Control Unit (CCU).
4. Check/clean drain pump filter of foreign objects.
5. Plug in washer or reconnect power.
6. Check drain pump.
7. Check the pressure switch.
8. Verify CCU operation by running a Diagnostic Test or any cycle.

Hope this helps.

Aug 15, 2011 | Whirlpool Duet Sport HT WFW8400TE Washer

1 Answer

GE WBVH6240 front load washer runs on 38 min. of the speed wash cycle then stops and door unlocks at 18 min. Tried to restart via the drain and rinse cycle at 18 min., the water pump comes on but no spin...

Hello, Welcome to FixYa.

The first thing I'd suggest is removing the filter in the pump you spoke of and insuring the pump is clear...there may be alot of water though so hopefully you're close to a drain or have some buckets/towels handy.

If that fails to resolve the problem it could be a plugged or faulty pressure switch. Have you run a system diagnostic yet ?

Here's how and the subsequent code the event you don't know...

Let me know if any of this helps or perhaps you cannot read it, It is all included in the service manual I can send via email if you could use it.

Good luck.


Macmarkus :)

May 06, 2011 | GE WBVH6240F Front Load Washer

1 Answer

I have a saniplus toilet, the macerating unit runs about every 2 minutes for 1-2 seconds at a time. I'ver replaced the flapper and even turned off the water to the unit and stopped using it, but it keeps...

Water pressure makes the unit kick on and off. Water could be leaking from the toilet tank into the bowl and from bowl into the pump. Or the check valve inside the discharge elbow (on top of the lid) may not be sitting properly or is being obstructed causing waste water to leak inside the pump, creating enough water pressure to make the unit kick on and off by itself.

Sep 06, 2010 | Saniflo & Saniplus& Macerator Pump

2 Answers

With the water running the MQ pump runs intermittently

This is a problem with your bladder in the pressure tank or the pressure switch. Ether one will produce this cycling on and off. Good luck.

Mar 09, 2010 | Grundfos MQ3-35 3/4 HP Pressure Booster...

1 Answer

Gould 1/2hp submergible well pump cycles on and off constantly. low to no water pressure .The pressure switch remains in the closed position. Power to pump side of pressure switch good. pump runs 15...

My first thought was that of a water logged tank which causes short cycling, from your notes the tank is good (the tank may be partially water logged though) If the tank is ok and your getting short cycling (and the switch is good) I would guess your check valve down the well has failed. As the pump creates pressure then shuts off the water may be going right back down the well causing the pump to cycle again. This could also account for the poor water pressure as the check valve may be stuck slightly open allowing the system to loose pressure but only allowing a small amount of flow by when running. There could be a leak within the pumps drop-pipe and your loosing pressure through this leak. I expect you'll have to have the pump pulled.
I hope this may have helped,

Oct 10, 2009 | Plumbing

Not finding what you are looking for?
Garden Logo

Related Topics:

108 people viewed this question

Ask a Question

Usually answered in minutes!

Top McCulloch Garden Experts

Jim Parker
Jim Parker

Level 3 Expert

1041 Answers


Level 3 Expert

708 Answers

Matt Olenzek
Matt Olenzek

Level 2 Expert

297 Answers

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

Answer questions

Manuals & User Guides