Question about Vanguard Heating & Cooling

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I have a Vanguard wall heater model VN18TB that will not stay lit and the electric igniter won't work

Posted by Anonymous on

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  • Master
  • 3,287 Answers

The ignitor is battery operated. Remove the button and replace the AAA battery wit the (+) going INTO the body (-) against the button.

The heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air. If the heater will not stay lit with plenty of fresh air available - this may be faulting. Likewise, a mispositioned thermocouple will not sense a flame and fail, too.


A link to the heater manual is below:
https://www.allpartsinc.com/mmALLPARTS/Others/VN18B.PDF

Posted on Mar 10, 2015

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  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: Have Vanguard Heaters Models #VP1600D

Replaced Thermocouple.

Posted on Dec 03, 2009

  • 101 Answers

SOURCE: VN18TB PILOT LITE GOES OUT STAY LITE TILL

Sounds like a weak thermocouple. With the extra heat of the main burner running it can keep the pilot solenoid open...without it it fails shut. Try replacing the thermocouple. (small rod the pilot flame burns against with a skinny copper tube going to gas valve).

Posted on Jan 04, 2010

  • 188 Answers

SOURCE: Vanguard ventless gas wall heater..bought a new

There should be a troubleshooting guide in the manual for the unit. If you do not have a manual you can obtain one at www.desatech.com , then go to "Wall Heaters" then click your model number. I know the thermocouple, gas regulator, and gas valve all share common symptons of what you're describing. For more parts check out Master Parts, as they carry a lot of the Vangaurd parts. ( 1.800.446.1446). I hope this helps!

Posted on Mar 12, 2010

  • 11 Answers

SOURCE: Empire Wall heater; model 0630500; lot 403F272

lowes and home depot sell universal thermocouples.

Posted on Jul 11, 2010

emissionwiz
  • 75807 Answers

SOURCE: My name is Larry and I have an older model

The part is ordered by Model number, a serial number is no help, and yes there is a part called the flame sensor that allows the gas to stay on, I am sure if you contact a local supplier they can provide a suitable substitute gas valve or sensor if it is a stand alone part, on most the sensor is part of the gas valve. I think you will end up having a local shop try and match up the valve.

Posted on Dec 03, 2010

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The part is ordered by Model number, a serial number is no help, and yes there is a part called the flame sensor that allows the gas to stay on, I am sure if you contact a local supplier they can provide a suitable substitute gas valve or sensor if it is a stand alone part, on most the sensor is part of the gas valve. I think you will end up having a local shop try and match up the valve.

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Sounds like a weak thermocouple. With the extra heat of the main burner running it can keep the pilot solenoid open...without it it fails shut. Try replacing the thermocouple. (small rod the pilot flame burns against with a skinny copper tube going to gas valve).

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