Art Kelley said:Yes, it's frozen water. Don't turn it on again until everything is thawed. If you have a heat exchanger it could be frozen also. Good luck.
lesterj2 said:so if it does have water in the pump would that stop the pulley from spinning...
admiralclean said:Or, you can pull on your mmhg hose.
If it is limp, then you have a problem.
I'd try that before "popping off" your "psi hose."