You replaced the gas control valve thermostat, and still getting same error, then full troubleshoot walk through is needed top-to bottom using the service manual:
http://waterheatertimer.org/pdf/Bradford-white-programmable-water-heater-manual.pdf
SOURCE: heater fault
make sure to find the hoses going to the firewall or to the cab from engine, they turn hot, both has to be hot if one is hoter than the other, that means your heater core under the dash is cloged, or the valve controling the flow is not opening, the valve is under the engine compartment, somewhere between the hoses, and
if both hoses turn hot, then you might have a bleen door inoperative blend door controls the cold or heat passege in the cab, try that and i will apreciate your feedback
SOURCE: I have just replaced the water pump and thermostat
It sounds as if you may have an air pocket in the system, alot of your saturn and gm vehicles have air bleed on or near the thermostat housing. As you are filling the system you will need to have this bleeder open until a steady stream of coolant comes out.
SOURCE: dashboard overheat warning light blinks continuously after 5-mi
It is not the thermostat since it only overheat on stop n go situation. Most likely cause is a bad radiator fan. Turn on the AC and see if both the radiator, and the condenser fan works. They should both be working when the AC is turned on. Lets stick to this for now. Let me know what happened. I don't want to confuse you with too many possiblity.
SOURCE: I have a 1997 Ford Taurus right-hand drive
Hello! I am sending two diagrams...#1 is O2 sensor location and #2 is a vacuum diagram...Before you spend a lot of money replacing O2 sensors lets eliminate other possible causes of heater circuit failure...O2's have heater circuits to bring them up to high temperature quickly so the computer (PCM) will have close control...I would suspect poor grounding, or connector contact corrosion...If you have an ohm meter...Set it on the X10 scale...Measure from center of the negative battery post to the chassis (bare metal)...And then to the engine block...Record both readings...Radio Shack sells a no-touch contact cleaner called DEOXIT...Spray a very small amount on all O2 connectors (male and female)...Oxidation is chemically removed...Re-connect...
Check all vacuum lines for broken, cracked, loose or collapsed...Send results....Guru...Saailer
I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867
SOURCE: 2005 honda civic heater blowing
could also be the heater core.... has anyone checked that out yet???
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