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tallpall888's avatar
tallpall888
Explorer
Jan 27, 2020

Atwood hot water heater thermostat question

My hot water, which operates only on electric, gets too hot and I wish to cool it down a bit. I would like to order a thermostat that will activate (open) at a temp that is ten degrees cooler than what it does now. Have seen the adjustable units on ebay but would like to spend a lot less for just a fixed temp unit. The modules for sale on ebay seem to be the standard replacement ...and don't mention what temp they are set for. Can someone point me to an ebay thermostat that would fit the bill? Thx for any help!

Edit: googling found that Atwood thermostats are set at 140 degrees from the factory so I will look for a 130.
  • True...and we have had no problem with lack of hot water with this 10 gallon unit. There *is* a problem with the safety valve blowing occasionally and this is the second valve for that heater so the thinking is there is a problem with the thermostat letting the water heat too much. Replacing with even the standard temp sensor might have helped, but I don't anticipate the 130 degree unit I just ordered ($10 ebay) will be noticed.
  • This maybe? Assuming it's an Atwood unit. I ordered one for my rig but haven't installed it yet.
    Disregard this post if you've seen this one already. I just re-read your original post.
  • I always had the same problem w/ all my attwood heaters. I replaced the 140s w/ 120's still plenty hot. I got them at the RV parts places for about 20 bucks.
  • RV water heaters are designed to be extra hot which makes the small tank last longer. Just mix in Coldwater if it’s too hot for you.