Question about Desa International Blower Glow Warm Wall Heater

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Pilot lights ok but when i release the control button it goes out

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  • 146 Answers

This sounds like a problem with your thermocouple.

Just remove the end of the thermocouple from where is goes into the gas valve and leave the end that goes into the flame in place.

Clean the end of the thermocouple connect by scraping off just a little metal from the end just about there the nut tightens the thermocouple into the gas valve. After you have exposed some new metal do the same inside the valve where the thermocouple seats into the gas valve.
Use a small pic or similar item to scrape inside the gas valve to expose some new metal there also.

Now reassemble the thermocouple into the gas valve and see if the heater works.

Here is a link with some more instructions.
http://www.msservice.net/ts/reseat_thermo-clean_pilot-ODS.htm


Thanks

Posted on Oct 16, 2010

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Posted on Jan 02, 2017

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Therinnaiguy
  • 1420 Answers

SOURCE: Unable To Keep Pilot Light Lit!

Clean or change out the pilot assembly. Check for a lose connection of the flame rod at both the pilot assembly as well as the gas valve.

Posted on Aug 30, 2007

SOURCE: Laars Lite 2 Pilot will not light

If you have not found the problem yeat, it IS the thermocoupling( or pilot generator(same thing))
You may test by placing a multimeter on the red and white leads coming to the gas valve. you do not need to disconnect the leads first but you can

Posted on Jul 25, 2008

johnsonr1
  • 91 Answers

SOURCE: The pilot light will not stay lit to light the heater.

The power pile (pilot generator) is defective. It produces a milivolt signal to ensure to keep the gas valve open. If it goes bad, the valve thinks the pilot is out, even when you are holding the button down, so when you release the button, it shuts the gas off to prevent excess gas buildup and a possible explosion.

Posted on Sep 12, 2009

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1 Answer

Pilot goes off as soon as I release the button


You need to hold the button down for about 3 mins. If it goes out after that long the thermocouple is probably bad. Look at how long the wire is from the pilot light to the gas valve. They come in different lengths.

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Your thermo couple is bad. Thats the copper tube that goes from the gas valve to the pilot. It senses thats the pilot is lit. Thats not working thats why it goes out. You can get a new one at lowes or home depot for about ten bucks its pretty easy to change just dont kink it when you put it in. It will just plug in at the pilot and screw in at at gas valve.

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We have an atwood lp gas water heater 6 gallon g6a7 white rogers control. The pilot lights but when we turn it to on it goes out, even after holding it up to a minute. It was running fine, we thought we...


If pilot stay lit, then thermocouple is working.
If pilot will light, then you have gas. If pilot goes out when pilot button is released, then thermocouple is next suspect.

Thermocouple tip must sit in pilot flame.
The pilot light heat applied to two different metals inside thermocouple causes small current.
The current travels back to gas control valve through copper line.
If the gas valve receive this current, then a magnetic switch stays open and allows gas into the gas control valve.
The magnetic switch is on the end of the red button you push down when lighting pilot. Essentially the red button is an override to the magnetic switch.
If the gas control valve does not receive the current, then the magnetic switch does not stay open when you release the red button.
When replacing thermocouple, note that it is not screwed very tight into the gas control valve. Finger tight + 1/4 turn. If it is overtightened, then the small thermocouple current shorts out against the gas control body.

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1 Answer

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if the unit goes thru the cycle of heating the water and when temp is met pilot goes out you need to replace the entire temp control if pilot goes out as soon as you release the pilot button you need to replace the thermo couple little copper wire the goes from regulator to inside burner...check for 800 number on front of w/h for warranty info..as regulator can be expensive

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1 Answer

Pilot goes out once button is released


If the new thermocouple was installed properly, with its tip in or across the pilot flame so as to be heated by the flame, then the control valve may be faulty.

Note: The pilot primer button may need to be held down for a longer period of time.

Aduz

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