pressure gauge/motor shutting off

[medfordman]

Lower PSI usually means a suction side restriction or problem. Do you see air in the pump basket? If so, check the skimmer basket(s) and pump basket for any blockage. Also check your valve settings if you have any.

It could also be that there is something on the pump impeller but to find out, you would need to disassemble the pump.

Also, because of the suction problem, the pump may be overheating and shutting down. If you fix your other problem, the pump may still be ok.

I don't want to hijack this thread, but I have a similar problem. Turned on the pump yesterday and got NO reading on the pressure gauge. Skimmers and bottom drain seem to be working fine, though. Turned on my vacuum (polaris 360) and the pressure went up to about 12 (normally it is at 25 when vacuum is on). Normally when the skimmer and drain are on, the pressure is at 12. The pump sounds fine, and has not shut off. No air bubbles in the filter basket. Also, i released the pressure in the valve and ran the pump, and water came out of the release hose.

This is a bad question, but what do you mean by "suction side restriction?"

Are there any good tutorials on how to disassemble and unclog and impeller?

[matt4x4]

Sounds to me like most of you have bad guages.
If there's a suction side blockage your cleaner would not work well since it needs good suction to work. also, you'd get little to no flow from the return.
When you power the pump off, does the pressure guage slam to teh stop pin or just stop around the pin - it should just rest lightly against it, if it hits it hard, you guage is out of whack.
Happens frequently with pretty much every guage out there.
Pluck - sounds like you also have motor or GFCI problems.

[medfordman]

When you power the pump off, does the pressure guage slam to teh stop pin or just stop around the pin - it should just rest lightly against it, if it hits it hard, you guage is out of whack.

I will check that out when I get home. thanks.

[pluck]

I took the bolts off of the motor. The impellars were virtually pristing looking.
As far as the motor shutting off. I cant explain it other then here in pittsburgh the temp has been up in the 90's with high humidity.
Anyway, i did replace the pressure gauge and the gauge now reads around 12. The old gauge would read around 2.
Big diffrence.
The motor has been running fine and not shutting off.
I am happy
Hope it stays that way.
Thank you to everyone who posted to my situation.
I mean it. Thank you.
I no longer feel like such a pool newbie and hope I can offer good advise to others with pool problems.
God knows owners of pools need a forum, or at the least a support group.
Pluck