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Flowmaster spa pump

Thermal switch

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If the thermal switch is tripping, the motor probably is overheating. It can be bad bearings, clogged filters, or no cooling air getting to the insides of the motor.

Posted on Nov 29, 2013

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Posted on Jan 02, 2017

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Pump is VERY noisy when running

Depends on the noise you are hearing. I would first check for debris caught in the impeller. If your pump is running but you don't have any flow you will get cavitation which sounds terrible, that would indicate a plugged line. Otherwise, many pumps are able to be disassembled. If you're really not sure, take it apart and run it with just the motor and see what happens.

Apr 12, 2013 | Pool & Spa

1 Answer

My Flowmaster XP2 will start and then immediately shuts off. Any suggestions on how this might be repaired?

If it hums and quickly shuts off but doesn't turn then it is often caused by a bad capacitor. It might also be caused by something stopping it from turning. If it turns and then shuts off then there could be shorted windings in the motor or too much friction in the motor or pump. I hope this helps.

Aug 13, 2011 | Aqua Flo Aquaflo Flo Master Xp2 Spa Pump...

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Our pool/spa pump will cut off for approx. 20 minutes several times during an 8 hr cycle. It never use to do this. The pump is around 3 1/2 yrs. old.

If the motor is very hot it could be shutting off due to a thermal safety device.

Anything that makes the motor work too hard and/or heat up will trigger this.

Blockage in the water lines
Clogged pool filter
Worn motor bearings
Lack of air flow around the motor
Weak or damaged motor windings.

A defective thermal limit switch will **** off the pump when the pump is within heat and load limits.

May 22, 2011 | Sta Rite Sta - Rite 1/2hp Dura - Glas...

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Where can I buy a Flowmaster XP2E 2hp pump, Model No. 05250000-6?

They no longer sell that particular model pump. The closest comparison is the new XP2E 2 HP pump which comes with the 2" inlet and outlet, but everything else is the same. It also comes with the fittings to convert from 1.5: to 2". This unit goes for about $450 on line. I also have this in stock and would sell it for the same price. Brand new in the box.

Contact me @ if interested

Feb 25, 2011 | Aqua Flo 2 HP Aqua-Flo Pump: 1.5" in/out,...

1 Answer

What is the diffrence between a 48 frame and 56 frame on a Flowmaster XP2E Pump

They are motor frame sizes - most motors are manufactured to comply with standard dimensional criteria.

Jan 24, 2011 | Pool & Spa

1 Answer

I need to purchase a stationery switch for a flowmaster xp2 model 06620390-2

What is the serial number that goes with the motor model number? I am assuming the 06-620390-2 is off the motor; if not please also add the motor brand and model number as well.


(P.S. for a faster response please send this information thru our website at using the contact feature)

Dec 27, 2010 | Aqua Flo Aquaflo Flo Master Xp2 Spa Pump...

1 Answer

Hot tub pump stops and control panel says there is a flo problem

Yes a pump does have a thermal cut out. When the motor gets too hot the thermal cut out will activate and the pump won't restart until the motor has cooled.

If you were an electrician, or highly confident/competent with electrics, you could test the motor with a volt meter. Run the spa and as soon as the pump stops running, check the voltage at the pump. If there is voltage at the pump, then the thermal cut out on the motor has activated. Do not try checking this yourself if you're not competent to do so.

You could also do the same test at the spa pack if it's easier to do so, just locate the output to the pump.

What spa and which spa pack have you got?


Apr 24, 2017 | Aqua Flo Aquaflo Flo Master Xp2 Spa Pump...

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