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Is that on all faucets? IF so, that sounds like a plugged check valve on the rear of the water heater. IF this is an XT Atwood model it can be the mixing valve is plugged up. Let me know what model you have and we can go from there and I can supply a manual and direct you in a repair. IF this is just one faucet let me know. All follow ups are included in our fee.
Take a look outside and see what the model number is. I am attaching a link to the Atwood Water Heater Service Manual. Print out a copy so you have it. Lots of good information in there. The check valve is on the top at the tank. It just unscrews out once you drain the tank. Be sure to turn it off and let it cool first. Most shops have one. Not expensive. http://bryantrv.com/docs2/docs/atwoodwaterheater.pdf
Just checking back in to see if you were able to resolve this issue with the help I provided or do you still need some additional input from me here?
You are most welcome! Let me know if you need more.