Question about Intex Krystal Clear Model 635 Pool Filter Pump 1500 Gph

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All of a sudden the pool filter pump (637) quit working

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The first things to check would be the breaker , there may be one near the pump and another at the main panel. Get back with your thoughts

Posted on May 12, 2010


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Can we replace a SFS1000 pump with a SFS2000 pump on our pool?

can you use the bigger pump? yes. Should you? NO All the componants of your pool are based around the pools water capacity. The filter, pump, the plumbing, everything. Using an over-sized pump may circulate more water; but can lead to filter damage, or ineffective filtration. You don't need or really want, a hemi engine on your lawnmower.

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My pool filter will not work and everything is plugged in and assembled properly. It has been working for weeks and suddenly stopped

might be the impeller on the pump has trash in it, this will restrict the pumps flow.. should be a easy fix. good luck and vote if'n I was of help.. jay the pool pump motor repair guy longwood florida

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Hot day and 750 Magnum pool pump after vacuuming quit - left it off an hour or so and it works for about 1/2 hour and quits


Jul 21, 2011 | Pool & Spa

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I have an intex above ground metal framed pool, the filter pump is model #637 Krystal Clear. I made the mistake fo running it 24/7 for several weeks and now it is leaking, some internal seal must be...

You will have to set winterize plugs in the pool to do this.
Remove the pump and motor from the plumbing. Then with the power off pull the wireing or simpley unplug the pump. Now all you need to do is take the whole thing to your local pool store and they can replace the seal and gaskets for you. Generally they will do this for the price of the parts or maybe a small fee. All pumps are different so this is the best way to get this done.

Aug 31, 2010 | Pool & Spa

1 Answer

I have a 15x48 intex metal frame pool with a 637 pump that uses A cartridges. I have cleaned out the filter and the skimmer and after hooking everything back up and bleeding air out of the lines I plugged...

if the system is consistently blowing air into the pool in large quantity, you most likely have a suction side leak that is allowing the pump to **** in air and return it back to the pool. try shutting the system off and inspect the suction side for any water leaks, that should lead you to any air leaks on the suction side. try turning the pump on and off a few times to catch any water spurting out of the suction side. Also, make sure the skimmer is now enough to not create a vortex and **** in air as well. Hope this helps.

Aug 24, 2010 | Intex 1 "a" Filter Cartridge Pool Pump...

1 Answer

Where can I get a new motor for an Intex pump model 637 or 12R

first off water should not be getting to the armature area. be carefull with how you are taking care of your pump.
secondly a 1500 gallon pump is very weak I would advise at least 2500 or even the intex 4000
the most important part of pool maintenance is circulation.

if you have time check into electric motor rebuilding in your area
but sometimes that is more expensive than buying new

also if you have a valid receipt and the pump is less than 90 days old call intex and they will send out a new one within 24 hours
good luck

Jul 26, 2009 | Intex Krystal Clear Model 635 Pool Filter...

2 Answers

Which filters made by who is right for this model Krystal Clear 637

any b cartridge will do.
In fact off brands of the same filter hold up longer than intex brand.
This is my 3rd season with the same cartridge. Just blast it with your garden hose on high presure and you should be good to go unless you get a tear in it
hold cartridge and spray outside from top to bottom all the way around.
now turn it over and do it again.
you should do this at least twice a week and you will be good to go

Jul 14, 2009 | Intex Krystal Clear Model 635 Pool Filter...

2 Answers

The jets quit working when I prime and attach the vaccum hose

you could have a leak in the vac hose or a shaft seal on the pump, if there is a wet spot under your pump there is a good chance the shaft seal is BAD.... some pumps are so strong you can starve the PUMP for water, the trick is to set your valve more towards the main drain./ hope this helps.. i'm your local pool pump motor repair guy

Jun 20, 2009 | AO Smith 2 hp Swimming Pool - Jet / Well...

1 Answer

We have the same problem

Year after year I tell people to run their pumps for 15 seconds twice a month during the winter as the snow rusts the rotor to the stator and the pumps need service in the spring unless the power is not shut off right away the start windings will burn and the motor is breakfast toast

Jun 09, 2009 | Intex Krystal Clear Model 635 Pool Filter...

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