Question about Heating & Cooling
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Posted on Jan 02, 2017
I had the same problem with my tankless waterheater (flashing c4 76 alternately). I called Rheem
tech support and they had me 1 power down the remotepanel 2 unplug the unit from the wall 3 remove the cover 4 remove the wires for the remote panel from the circuit board and pull the twisted pair that goes to the remote out from the bottom of the unit. 5 reinstall the cover 6 plug the unit back
into the wall and turn on the hot water see if it works. It did in my case and they are sending me a new remote panel. I hope it helps.........
Posted on Jan 12, 2009
Sounds like you have a faulty thermostat. This is the unit that detects the water temperature, and if it is not where it is set, will kick the switch to allow electricity to flow to the elements you replaced. The thermostats are relatively cheap and if you have the knowledge to change the elements, changing these thermostats should not be a problem.
Posted on Mar 07, 2009
there may be a software issue, there is a reprogram for seat heater issues. Bulletin 05-08-50-008 may pertain to that, a AC DELCO Shop or the dealer can ck that and see if this bulletin applies.
Posted on Sep 29, 2009
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