[jk999]

Hi my sure flow pumps hunting all time . There is no air locks battery is fine I have checked everything but pressure  switch could this be the problem any advice would be appreciated cheers kev

[Stoots]

Hunting

Love this phrase, my dad says it sometimes. There's sumert wrong with my car bloody engines hunting.

Sick phrase

[jk999]

  lol

[Matt.]

U no u can change the pressure switch, Maplin has one that fits for £3

[jk999]

Any chance of putting a link up for it

[Matt.]

I haven't got a link mate, only difference with Maplin one is there is an extra connector on it that's not needed just bend it and it snaps off

[jk999]

I'm sure I have seen picks of this switch  before and it looks nowt like the sureflow one how does it fit new work the pump

[jk999]

Been on website and nothing comes up for pressure  switch

[M & C Window Cleaning]

I think this is the one

http://www.maplin.co.uk/p/low-cost-standard-microswitch-gw71n

You take the presser switch housing off the back of the pump and the micro switch fits inside hence why you can't find the part that looks right.

There is also this one one eBay which has a higher current rating and looks to be the right part

http://www.ebay.co.uk/itm/Microswitch-Micro-Switch-15A-Shurflo-Caravan-Motorhome-Camper-Boat-Water-Pump-/201677753332?hash=item2ef4ee4bf4:g:NToAAOSwcnpToX3V

[andyM]

Yep it's the Maplin GW71N you need.
You will also need to use smaller spade connectors.

[jk999]

The pressure  switch on pump is the square  bit at end two red wires going into it when you say take housing of what part do you mean

[andyM]

The pressure  switch on pump is the square  bit at end two red wires going into it when you say take housing of what part do you mean

That's right JK.
The pressure switch housing is the black square bit.
When you unscrew it you will see the pressure switch inside.
Using a small flat screwdriver you can lever it out of the housing to remove it.
The new pressure switch will slot straight in.   

[jk999]

Cheers buddy .do maplins normally have them in stock or have you got to order them

[Smurf]

What makes you think its the pressure switch. Meaning what is the pump actually doing when switched on?
Do you run the pump through a digi controller if so does it come up with any errors?

[andyM]

Cheers buddy .do maplins normally have them in stock or have you got to order them

Normally do.
You can check stock in your local store on their website:
http://www.maplin.co.uk/p/low-cost-standard-microswitch-gw71n

[Matt.]

Maplin have them in stock the link above is the correct one if u unsure still I have a few pumps in the van I can post pic of what u need to do

[johnny bravo]

matt, can you post pis on here for future refference,
thanks

[johnny bravo]

JK have you tested the pump with the bare terminals on the battery to see if pump is ok.      water should come out of the reel if tap is open.     

[jk999]

Cheers matt that would be great . Smurf I run it with  just  an on and off switch and one of my pipes have an inline tap but it's open fully .only way I can explain is when it's running  it's sounds like it's trying to stop pump hope this helps

[jk999]

Tried everything Johnny I normally can pin point it straight away but this one's got me baffled lol