hevykevy420
Member
Setup: 50 gallon electric HWH w/240V digital timer, dedicated return line/Taco 009 recirculation pump w/timer & aquastat control
Problem: Recirc pump ran continuously, lukewarm "hot"water, then, no hot water upstairs at all
.
I replaced the heating elements thinking they went bad. Turns out replacing the thermostats restored the HW and now the recirc pump kicks off when the return line is up to temp. HW is also hot again and not lukewarm.
When replacing thermostats, I noticed part of the plastic separating the poles inside the digital 240V timer melted and the wire looked black on its sheathing. The timer still works fine (tested on/off voltage from timer and to HWH) but I disconnected it anyway because of the damage. Didn't want to risk any bad wiring.
It looks like something maybe shorted the unit causing the damage and maybe frying the thermostats. What would cause this? Or, would the continual running of the recirc pump overload the timer box? I may discontinue using a timer as I think the cycling of the recirc pump might put too much strain on the unit with the continual hot/cold cycles.
Any insight into what went wrong here? The HWH is only 6 years old. The Home Depot plumbing expert said power surges happen all the time and probably caused this but I thought I'd ask the true experts here.
Problem: Recirc pump ran continuously, lukewarm "hot"water, then, no hot water upstairs at all
.I replaced the heating elements thinking they went bad. Turns out replacing the thermostats restored the HW and now the recirc pump kicks off when the return line is up to temp. HW is also hot again and not lukewarm.
When replacing thermostats, I noticed part of the plastic separating the poles inside the digital 240V timer melted and the wire looked black on its sheathing
. The timer still works fine (tested on/off voltage from timer and to HWH) but I disconnected it anyway because of the damage. Didn't want to risk any bad wiring.It looks like something maybe shorted the unit causing the damage and maybe frying the thermostats. What would cause this? Or, would the continual running of the recirc pump overload the timer box? I may discontinue using a timer as I think the cycling of the recirc pump might put too much strain on the unit with the continual hot/cold cycles.
Any insight into what went wrong here? The HWH is only 6 years old. The Home Depot plumbing expert said power surges happen all the time and probably caused this but I thought I'd ask the true experts here.
