Hot Water Heater Problem

[mwells4654]

I have an Atwood G6A3 hot water heater.  At first it would not stay lit (Jade Controller).  I would lite the pilot and after one minute it would quit.  Replaced the Thermocouple/pilot assembly.  Now the heater lites and stays lit but if I turn down the thermostat the main burner goes from a very good flame to a smaller flame (not the pilot flame).  The pilot is still lit but the main burner flame is close to a half flame.  Is this normal or is there something else wrong?  I have camped and rv'd but I have never had one with a hot water heater so this is new to me. 

Thanks
Mel

 

[donn]

Does it stay that way for how long?  I suspect the valve you installed is bypassing some fuel for some reason.  Maybe as a maintenance for a minute or so or simply leaking.

 

[mwells4654]

Not sure - had to leave so I turned it off.  I am going to try again tonight when I get home from work.  Was not sure if it was normal for it to go from a high flame to somewhat smaller flame before it turned off the main burner.

 

[mwells4654]

Worked on the water heater last night.  It seems the Jade thermostat assembly is not shutting all the gas off properly.  I left the heater working until the thermostat clicked and the main burner when from large flame to something short of half power.  Gave the thermostat housing a tap from a pair of pliers and the gas turned off on the main burner and the pilot remained on.  So it looks like I need a new Jade thermostat assembly.