What if pump would not cut off?

Hi,
My submersible pump didn't shut off yesterday for app. 1hr.
I finally realized it was on and before I could pull the disconnect the pressure guage was pegged ove 100psi. Turns out the contacts had fused shut allowing the pump to run nonstop. My question is: How much damage may have occured with such high pressure and does a submersible pump have a relief valve for all the water to go by.(ie- where did all the water pumping for an hour go to?)
Other than a few drip leaks I can't find any damage or areas of water leakage.

This definately is one of those things where one problem leads to alot of others.

100 psi is probably your pumps maximum output pressure.

Probably no damage if you didn't over heat the pump too much.

Rancher

Im fighting the same problem now. Look at my post pressure tank dead? to get an idea of the damages Im repairing. I have a 150 psi gauge, which was showing around 135 psi when I discovered the problem.

An hour is a long time if the pump wasn't moving any water. It should have nuked itself in an hour from excessive heat. Impellers don't like boiling water temperatures. Motors are not fond of it either but usually fair better than the impellers.

Pressure relief valves are the answer to these problems.

I would look at what caused the switch to fuse. Usually waterlogged tanks or lightning are the culprits.

bob...