A year or so ago i had a guy do some repair work (pressure switch i think) and after he reconnected everything the pump now runs constantly at low speed. It used to only come on at timer setting. I would like to put it back the way it was. Can anyone help?

Is there a toggle switch? Is the timer in/op?

no toggle switch. timer is working fine.

Does it turn off when you turn the heat down?
Call him back.