Atwood Water Heater Mixing Valve Problems

Recommended cleaning procedure is to soak the mixing valve in hot vinegar to dissolve any hard water deposits blocking the screens. This can happen if you have a weak gas control magnet or if the thermocouple needs to be replaced. I had to remove the valve because i did not know they had put glue inside the screw hole where the torch bit went.

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10 gallon water heater xt exothermal mixing valve for xt water heater atwood xt water heaters advanced water heater system featuring exothermal technology the atwood xt 10 gallon water heater provides the equivalence of a 16 gallon unit without increasing the space required.

Atwood water heater mixing valve problems.

That s the tamper proof part of it. Atwood 6 gallon water heater unit is pre set at temperature 140 degree fahrenheit which is adjustable from 110 to 150 degree fahrenheit. Impurities in the water can cause your atwood water heater to malfunction. Drain the water heater by removing the drain plug then refill the heater.

Problem seems to be solved. I checked my atwood heater manual and also nothing mentioned on the mixing valve. Yes can soak it in clr or hot white vinegar to clean and then rinse thoroughly. This unit is operated on propane gas and can only be ignited inside of the trailer using an on off remote switch.

It took about 15 minutes of flushing my water heater before it ran clean with no chunks of crud coming out. There is still a check valve on the lower cold side so back flow to the fw tank. If it is not too old hen you can try cleaning the orifice and see how it goes. For poor pilot flame you would need to replace the orifice.

The problem is that the water heater thermostat is calibrated to make scalding hot water then the mix valve cuts that down to a more reasonable temperature for use. Sometimes you need to move adjustment back forth to clear. One of the most common problems with atwood rv water heater is a pilot outage. Check the water heater s vent and air grill for.

Tamper proofing glued allen head screw the knob to adjust output temp is pain to remove. I will be cleaning out the water heater more often now. This gives you more hot water than the capacity of the tank alone but adds to the complexity and maintenance issues as you see. Deposits build up in hot side of mixing valve can clog it up.

Saves weight while fitting in the same cut out. Fired the heater up and with the new valve the water temperature at the tap is 130. Atwood has tried to make the valve tamper proof. The mixing valve is on the back of the water heater and mine has a red knob.

Which is why its discussed in this airsteam forum and just about every other rv forum. Ok so when you turn the valve and antifreeze fills the tank here is the fix.