Hot water heater out of control

dougrainer wrote:

rdjmm wrote:
Looked at thermostat and eco also the thermostat shut off. There scorched wires on both parts. Thanks for all your help everyone. We know you always have the answers or at least know where to point someone in the right direction. Thank you all.

You stated scorched wires. Are you not curious WHY you have scorched wires???? You have scorched wires because you had a flame blockage and the flame flashed back and burnt the wiring. You need to replace the burnt wiring and I would replace the tstat/ECO and the Thermal sensor. Doug

AND cleaan orifice (soak in alcohol.....no poking or blowing high compressed air thru it), clean the burner tube (small bottle brush) and swab out the combustion/exhaust chamber (run a wire thru, tie a rag to wire then pull it back thru...chimmney sweep)
As stated....you probably had a blowback (flame coming back out of combustion chamber) enough so to scorch the wires.
Thermal Cut Out (temp fuse) should have blown shutting down all DC and stopping any heating cycles......thermal cut out (clear tube) should be positioned above the burner so it can be exposed to blowback,

Replace the thermal fuse, replace the t-stat/ECO and any scorched/burnt wires