Question about Water Heaters

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My 50 gal lp water heater made a slight boom sound and now when i lite it and turn on the main bunner it snuffs its self out

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  • Water Heaters Master
  • 5,089 Answers

1) Call manufacturer with model number and serial number appearing on label on side of water heater.
http://waterheatertimer.org/Water-heater-manufacturers.html

2) Copy following link to troubleshoot by type of gas control valve:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://waterheatertimer.org/How-to-replace-thermocouple.html

3) Product manuals today recommend yearly service, and yearly cleaning of combustion parts, and to keep air intake clean.
If air intake becomes clogged, or combustion parts get dirty, it can slow the exit of combustion gasses, and this will soot the burner, and clog burner ports, which means slow lazy yellow flame and incomplete burning of released gas. So unburned gas is present in combustion chamber and up the flueway. The ignition of unburned gas can cause explosion of various intensity ... and the 'boom' sound you heard.

The explosion certainly overheated combustion chamber and tripped FVIR system.

4) Since each manufacturer has different FV system (flammable vapor ignition retardation system), and each manufacturer has continued to make changes over time in FV systems, the solution for tripped FV will vary by brand and age and model of water heater.
For example the intellivent gas control can be reset in some models, while other models require replacement of parts ranging from gas control valve to FV sensor to glass vial, and include possibly full replacement of water heater.

Posted on Jan 20, 2013

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Posted on Jan 02, 2017

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  • 21 Answers

SOURCE: Rheem 50 Gal Hot Water Heater will not stay lit

On the back of the gas valve (where you turn the temp up) there is a stem that actually goes into the tank that senses the temprature of the water it could be dirty or buried in sediment depending on how old the tank is, or just bad. if the tank is over 10 years old i wouldn't bother replacing the gas valve, the tank is probably not far behind. A new valve will run around $100.00 maybe a little less. You wont find it at menards or home depot in stock but they may be able to order it for you. Menards sells rheem products or try you local plumbing supply house. REMEMBER TO RELIEVE THE PRESSURE ON THE TANK BEFORE YOU WORK ON IT. IF YOU CHANGE THE VALVE DRAIN IT FIRST!

Posted on Feb 10, 2009

gary1121
  • 332 Answers

SOURCE: Bradford White LP water Heater Power vent

does the fan come on, if not there is a problem with the circuit board, if it does then there is a problem with the gas valve or a wire from the gas valve to the fan , if the fan doesn't come on the gas valve is told not to open to light thru the circuit board,

Posted on May 30, 2009

gary1121
  • 332 Answers

SOURCE: the water heater will cycle 5-6-7 times with no

there is a screen around the bottom of the unit? if so take it off and clean it,, does this unit have a self ignitor, or is it piliot? make sure your flue is clear so the unit is not over heating,, make sure on the power vent that the filter is clear also,, does the fan come on before the gas ignites, if not the circuit board is going bad the fan should start first to omit the gas fumes

Posted on Jun 06, 2009

  • 297 Answers

SOURCE: I have a 6 gal Atwood hot water heater. I can

Kenny did you change the thermo coupler?

Posted on Jul 14, 2009

  • 454 Answers

SOURCE: I have a Rheem 50 gal. natural gas water heater

The most common reason a pilot light will not stay lit is a bad thermocouple. How old is the water heater? If the pilot light will light, but then go out when you release the safety button, that is a sure sign the thermocouple is bad. You can buy a replacement thermocouple at your local home improvement store. There is a small chance that the control valve has gone bad, but that is highly unlikely.

Posted on Feb 23, 2010

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