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it has 7 lights on the front panel bottom light is on/off, next hw dmand, ch demand, fan, not sure, flame and flame out. hope i have the right model.

hi guys i hope somebody can help. i have replaced the complete diverter valve on my 242 because of no hw, no dhw demand light, no ignition. has been fine for 2 weeks, tonight did the same thing, no demand light, no ignition. seems to have good hw when ch is on but still no dhw demand light...