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mudrat025's avatar
mudrat025
Explorer
Jun 18, 2014

atwood water heater problems !!!

helo,i have a atwwod 6 gallon water heater model #gc6aa-10E.it was giving me troubles all last year with the thermal cutoff that had to be unplugged and plugged back in to fire up the water heater.so i bought the new thermal cutoff and tried to rplace the 2 amp fuse(which broke in half as i took it out).i replaced the thermal cutoff and then the fuse with the only one i had was a 20 amp(i know stupid but all i had)the unit fired up and ran fine and i checked on it the whole time and even let it cycle a few times.well i left it on all night but the tank is cold and now it wont fire back up.i am horrible with electrical but got a nice tester and know how to use it.i just need to be walked through of where to start and wht to look for.i am leaving very soon for a 5 state trip and could really use your guys help thanks!!!
Toy Haulers
  • ScottG's avatar
    ScottG
    Nomad
    Jun 18, 2014
    That just may hold the record for longest sentence in history! ;)

    EDIT: Sorry, My bad, I see the periods now (between the small case letters with no spaces).
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Jun 18, 2014
    As stated in your other 'atwood water heater' post 2 days ago....

    That thermal cutoff was not your original problem. They are a 'one time' diode that when it trips it has to be replaced (trip on 190*F temp from blow-back/flare-back out of combustion chamber). Unplugging it and plugging it back in means that you made better contact so circuit to t-stat was completed.

    Need to clean/tighten terminals where spade lugs connect, pull and clean connector on module/clean contact surface with a pencil eraser and replace that 20A fuse with a 2A fuse.....that is IF you haven't damaged the control module due to that oversized fuse which is there to protect the module from damage :S

    Here is the wiring diagram......test for 12V DC

  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Jun 18, 2014
    mudrat025 wrote:
    umm i think this unit is only gas fed?


    You stated model # GC6AA-10E

    G......propane gas
    C......combination gas and 110V AC electric
    6......gallon capacity
    AA.....screw in electric element
    10.....version
    E......electronic ignition

    gas valve, burner, spark electrode...outside compartment
    electric element......backside of water heater (inside rv)

    Uses one set of t-stats (outside compartment---ECO/Hi temp & t-stat/normal temp) for both electric and gas operation.

    Wiring diagram is the correct one for that model.
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Jun 18, 2014
    mudrat025 wrote:
    i am going to just but the thermostat Eco contacts new


    :H
  • mudrat025's avatar
    mudrat025
    Explorer
    Jun 18, 2014
    they aint that expensive old bisquit,i just want no headaches while on this 5 state roadtrip starting...Thursday!!!ugh!!!!
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Jun 18, 2014
    I couldn't understand your last post...

    "i am going to just but the thermostat Eco contacts new'

    What were you trying to say......are you installing a new set of t-stats??

    Bye-bye
  • mudrat025's avatar
    mudrat025
    Explorer
    Jun 18, 2014
    yes, going to install new set of t-stats. my wife works next to Curtis trailers and they are not that expensive so i will start there.
  • mudrat025's avatar
    mudrat025
    Explorer
    Jun 19, 2014
    just checked out the 12 volt there is 29 plus volts to GRN6 ORN1 WHT 2 BRN 3.everything else shows nothing(eco and gas t stats,spark and sense sensor,BRN 1 YLW 2 BLU 3 RED 4 GRN 5 GRN 6). is this a sign of a dead board?the local trailer shop could not test it due to not having the corredt connector.

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