Is the water heater really firing or are you just seeing hot water coming in from your supply hose that is laying on the ground in the sun? In the summer when I turn on my cold water I get cold water for a few seconds and then much warmer water that is coming from outside in the sun and then colder water again when I see water coming from underground.
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Ed
KM4STL
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50X, TST Systems 507 TPMS, RV Flex Armor Roof
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