RV Ratings Go to Main Page RV mechanic on duty. Start at the home page.
RV Mechanic RV engine problems? RV mechanic help only a click away!

Water heater P&T valve overflow

Home > Discussion Forum > Mechanic's Corner (general)

Email Author email Mary Hill  Reply to Message reply to message  Post New Message post new message      search forums
hidden layer
ATTENTION: All Postings that advertise items for sale will be deleted from the Discussion Forum. You may post sale items for free in the Classifieds section. Sign up now.
All Messages in ThreadAuthorDate
Water heater P&T valve overflow Mary Hill 5-20-01  
I have a houseboat that is essentially an RV on pontoons. It has a six gal Surburgan water heater. When I turn on the igniter (propane), it lights and heats up the water OK. The pressure relief valve starts leaking out water within 15 mins and leaks constantly...until I shut off the gas. The gas does not shut off by itself....runs continuously. I have replaced the hi-limit switch. I have also removed the anode rod, emptied and refilled the tank; was told I needed to do this to "replace the air bubble". The problem is not fixed. I don't know what else to do. Any suggestions?
Re: water heater P&T valve overflow Kent 5-20-01  
I have a houseboat that is essentially an RV on pontoons. It has a six gal Surburgan water heater. When I turn on the igniter (propane), it lights and heats up the water OK. The pressure relief valve starts leaking out water within 15 mins and leaks constantly...until I shut off the gas. The gas does not shut off by itself....runs continuously. I have replaced the hi-limit switch. I have also removed the anode rod, emptied and refilled the tank; was told I needed to do this to "replace the air bubble". The problem is not fixed. I don't know what else to do. Any suggestions?

What I gather from your description is that no matter how low you set the temperature setting, the burner will not cycle on and off as it should. Do you have a pilot or non-pilot model heater?
Re: water heater P&T valve overflow Russel 5-22-01  
Heater. When I turn on the igniter (propane), it lights and heats up the water OK. The pressure relief valve starts leaking out water within 15 mins and leaks constantly

The water heater should shut off at about 140 water temp. You said ignitor so I'm assuming it is an electronic ignition. If it really doesn't ever shut off by itself, you need to find out why,,,the limit should shut it off at 190 degrees if the thermo doesn't. As to the leak, A new pop off valve may help but the quality of valves I've been seeing lately, I wouldn't bet on it. The papers with a new water heater will tell you to expect a little leaking after the heater has shut off. I'm interesting in this "air bubble" concept though,,, there is not suppose to be any air in the water heater.
Re: water heater P&T valve overflow j strock 11-17-05  
Stay in top flat and late at night the overflow coming from sie of house starts to overflow only at night time could you give me any idear wat is wrong thanks james
Required fields in red
For more info about a field, place your mouse over the More Info icon.
Subject:
Your Name:
Your Email:
Message:



Code is case-sensitive. Helps stop SPAM.
       

Google
Web RVMechanic.com



Watch me paint, sculpt and buy my art


Useful Links
Recent RV mechanic and troubleshooting topics
  Motor swap
  Fuse Box
  Finding a motor for a 99 blazer 4x4
  FIXED BRAKES AND HAVE PARTS INFO
  Hydroflame BRC-10A works fine until hot when it makes a roaring noise.
  Heater problems
  My 2000 Ford Taurus
  Sunvisors for 1999 yukon
  Detroit diesel help
  8500 excalibur 11
  Reconnecting battery cables
  4x4 problems with a 1998 Mazda b4000
  4 Wheel drive not working 2001 Ford Ranger
  Looking for manual for a 1989 Honey Bravo
  Hydro flame 8225 manuals
  VIEW ALL

RV-Coach Online

My RV Guide

All Things RV




Print-friendly page
PRIVACY POLICY  |  TERMS & CONDITIONS  |  © 1996 - 2008 RV-Coach Network - All Rights Reserved  |  Web Site by ITtelligent