wiring

having a 10yo Heat-Flo 40g indirect replaced with the same. leaking prolly due to not checking the anode. Oh well. The original install has the aquastat directly wired to the gas boiler without a switch in between. The only switch shuts off the boiler and HF. Can a switch be inserted in the...

Its seems we are having issues with some zoned not turning on/off properly. Digging into the Sprinkler Solenoid 'box', I see we have some Solenoids that have the common wire connected, but the 'control wire' is not connected (i.e. there is a wire connection cap at the end, but its not actually...

I just replaced the 30 amp breaker, the upper and lower heating elements, and thermostats. I have continuity all the way through the circuit, but the voltage stop going from the upper thermostat to the lower thermostat.