Pool Pump is really hot to the touch

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WAD

Pool Pump is really hot to the touch

Postby WAD » Mon 03 May, 2010 15:48

I have a Hayward Super Pump 1.5hp. The pump is about 3 years old.

I've only owned the house for a year. I don't remember the pump getting super hot last summer. It's got hot but not to where I couldn't touch it. It's gotten so hot that it put a little burn mark on the fiberglass sand filter that sits about 5 or 6 inches away.

All the wiring is good. Should I expect it to start cutting off like I read so much about? Any ideas why it would start getting hot like this?

I had the ceramic thing replaced where it spins and also replaced the other gasket at the front of the motor that goes into the casing. I noticed a little water leaking underneath. Not sure how long that was going on. I'm thinking this may be the cause but not sure.


Xclusive
Swimming Pool Wizard
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Joined: Wed 14 Apr, 2010 09:17
Location: Dutchess, Putnam, Westchester County, NY

Pool Pump is really hot to the touch

Postby Xclusive » Mon 03 May, 2010 17:43

WAD wrote:I have a Hayward Super Pump 1.5hp. The pump is about 3 years old.

I've only owned the house for a year. I don't remember the pump getting super hot last summer. It's got hot but not to where I couldn't touch it. It's gotten so hot that it put a little burn mark on the fiberglass sand filter that sits about 5 or 6 inches away.

All the wiring is good. Should I expect it to start cutting off like I read so much about? Any ideas why it would start getting hot like this?

I had the ceramic thing replaced where it spins and also replaced the other gasket at the front of the motor that goes into the casing. I noticed a little water leaking underneath. Not sure how long that was going on. I'm thinking this may be the cause but not sure.


You are correct when you state you should be expecting it to cut off due to thermal overload. Has is done so yet to your knowledge? Also the leak you noticed is possibly due to the seal being ruined because your pump is running dry, hence overheating. Check all the skimmer baskets, make sure no debris is impeding flow. Check the impeller in the pump through the volute. Make sure nothing is clogging it and causing it not to spin. Best case scenario you may have just to free a clog and change the seal.
WAD

Pool Pump is really hot to the touch

Postby WAD » Mon 03 May, 2010 18:47

Joe, thanks so much for the quick response.

I actually removed the pump motor about two weeks ago, bc of the leak, and took it to a local pool store. They replaced the seal and the the little ceramic thing. We did not get any further into the motor than that. This fix stopped the leak but not the heat. To my knowledge it has never stopped running. Right now I have it running for about six hours. I can put my hand on the motor for about 4 seconds before I have to pull away. Other pool owners tell me that is too hot.

About 4 months ago I left the setting on rinse and my timer went off and my pump ran for like 4 hours with the water below my skimmer. It was still pulling water from the bottom drain. I'm guessing this is what messed up the seal and caused the leak. So 4 months it may have been running with that leak. Do you think this may have burned up the pump and I am screwed?

The pump runs fine. I don't think the suction is quite as strong but it might just be my imagination. The jets seem to be pushing out enough water.

One other thing...it is an older pool and the plaster is in bad shape. I've read that this could damage equipment too but not sure how.

Sorry for the long reply...just worried I may have to buy another pump after a stupid mistake.
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mas985
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Pool Pump is really hot to the touch

Postby mas985 » Mon 03 May, 2010 21:43

WAD wrote:About 4 months ago I left the setting on rinse and my timer went off and my pump ran for like 4 hours with the water below my skimmer. It was still pulling water from the bottom drain. I'm guessing this is what messed up the seal and caused the leak. So 4 months it may have been running with that leak. Do you think this may have burned up the pump and I am screwed?


Without water running through the impeller, heat will build up on the seals and that is what damaged them but unfortunately this could also have an effect on the bearings as well. If the bearings are damaged, this could be adding more load to the motor which will then draw more power/current which is why it is running hot. Is the motor making any unusual noises? Under normal circumstances, the motor may be quite warm but not really hot and over time this may shorten the motor's life.
Mark
Hydraulics 101 ; Pump and Pool Spreadsheets ; Pump Ed 101
18'x36' 20k gallon plaster/gunite pool, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge Filter, Solar Panels, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater
WAD

Pool Pump is really hot to the touch

Postby WAD » Tue 04 May, 2010 08:08

The pump is not making any unusual noises. It seems to run fine. It is just really hot. There is no way to fix the bearings? Should I just search for a new motor?
Xclusive
Swimming Pool Wizard
Swimming Pool Wizard
Posts: 74
Joined: Wed 14 Apr, 2010 09:17
Location: Dutchess, Putnam, Westchester County, NY

Pool Pump is really hot to the touch

Postby Xclusive » Tue 04 May, 2010 08:53

WAD wrote:The pump is not making any unusual noises. It seems to run fine. It is just really hot. There is no way to fix the bearings? Should I just search for a new motor?


If it is the bearings they certainly can be replaced. You will need a puller to remove the old ones and a bearing press to install the new ones. It is best to take the pump to a motor rebuilder if you want the bearings replaced. However its been my experience that if that motor has been overheating this much the life expectancy of it has definately shortened for sure. It may be a wiser decision just to buy a new motor. Also for the time being check for very small cracks around the housing. That may be cause of a leak too.
WAD

Pool Pump is really hot to the touch

Postby WAD » Tue 04 May, 2010 10:46

What timing.

I just went out to check to see how the pump is running and it won't prime now. It sucks all the water in from the skimmer basket at the pool and just keeps sucking. It never builds up any pressure. The skimmer basket at the pump is just sucking a little bit of water.

It seems like it almost gets there and then fails. And then tries again. Do you think my pump bit the dust?

I have plenty of water in the pool and everything seems to be ok. I'm about to throw up.
Xclusive
Swimming Pool Wizard
Swimming Pool Wizard
Posts: 74
Joined: Wed 14 Apr, 2010 09:17
Location: Dutchess, Putnam, Westchester County, NY

Pool Pump is really hot to the touch

Postby Xclusive » Tue 04 May, 2010 12:02

Sorry to hear this. Try priming it this way, let's see if we can get it going again. Turn off all valves in FRONT of the pump. Stick a garden hose in the pump basket and fill it all the way. Put the top back on the pump, turn the pump on and slowly open the main drain valve until it catches prime. If it catches prime, proceed by opening the skimmer valve(s) and open the main valve all the way.

If it does not catch prime this way or it does and problem persist, you definetely have a suction problem causing your pump to run dry and overheat. Again I would check for any obstruction in the lines and or your pump impeller again for clogs. Let me know how in goes.

Very important, be very careful not to let any water in the motor while you are doing this, make sure when you fill the basket nothing spills over. There is some risk of shock if the motor gets wet.
WAD

Pool Pump is really hot to the touch

Postby WAD » Tue 04 May, 2010 13:41

ok...after a while of trouble shooting I found that the flapper was stuck up at the skimmer basket. Had nothing to do with the pump.

So the pump is still really hot. Put a piece of wood in between the pump motor and the sand filter for now so it doesn't burn a hole through the sand filter.

I guess I will let it run until it dies and just buy a new one.

Anyone know where to get a good deal on a Hayward 1.5hp SuperPump motor?
Lucy

Pool Pump is really hot to the touch

Postby Lucy » Wed 28 Aug, 2013 20:59

The small switch on the motor gets hot.

we change it and did work for 15 min or so and went off again. What coul be the problem.? Please help

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