This heater is leaking somewhere
So time to tear it down and find it
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Step 1: Tools I Used
Phillips screw driver
17mm open end wrench
Step 2: SHUT THE FUEL OFF!!! Drain Sump
Shut fuel off at the tank or at the fuesable link
Before u start any work
Then turn valve to the right to close
Step 3: Remove the Front Panel
Remove two screws on the sides
Then lift up on cover should pop off
Step 4: Inner Ballests
On the top u see two yellow wires attached to a round thingy that is the high limit switch.
Remove the yellow wires and unscrew the switch.
Now work your way down and unscrew the aluminum plates one lower,middle,upper where you took switch off
Step 5: Remove the Fan Guard and Circuit Board Cover
Step 6: Remove the Control Panel
Four screws holding panel
Pull the white connectors to un hook
Only fit in one place so no need to mark where they go