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Post Info TOPIC: Dometic fridge on gas..
aussie_paul


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Dometic fridge on gas..
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When turning fridge on gas the tiny red needle does not move more than 2mm from the left to right, towards the green, to let me know it is working. It does not reach into the green area. What have others found?

Heading the last couple of hours to home today.

Aussie Paul. smile

 



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KFT


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Hi Paul,
I am not certain of this but I would think that the thermocouple may have been dislodged and is not completely in the flame. The low reading could mean the thermocouple is not getting hot enough to move the needle to the green.

others with much more experience may correct this if I am on the wrong track but that is what I would be looking at first.

frank

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Avagreatday.

Kathy and Frank currently at Home near Quirindi NSW
aussie_paul


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Thanks Frank. That is what I thought BUT before removing the first screw I needed to check. Now I need someone to tell me how to go about sorting the thermocouple??

I had difficulty lighting it last night as the gas bottle was getting very close to empty, so switched to almost full bottle and it lit easily.

Aussie Paul. smile



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oldtrack123


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HI

I'll go along with Frank 

You need to check the thermocouple position but ALSO the flame size

The thermocouple with a cable attached,  is a small metal tube with a blunt [rounded] end that must have the tip in the flame at all times

Make sure you do not move the ignitor which has a sharpened point & also has a cable

But I would first check the flame size 

The outer cone should just reach the lip of the boiler tube 

It is possible you have a blockage in the gas system[loss of gas pressure at the burner]  



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aussie_paul


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Ok fellas, I found the fridge vent and removed it to find everything I needed to check. A bit of a fiddle with the thermocouple then lit it and the tiny red needle went almost to the green. Here is a video of the flame. I must say the fridge works well on gas.

http://youtu.be/5ujZ27EmLF0

Aussie Paul. smile

IMG_3322 edited.jpg

IMG_3332 edited.jpg

 



-- Edited by aussie_paul on Thursday 22nd of January 2015 09:35:49 PM



-- Edited by aussie_paul on Thursday 22nd of January 2015 09:42:23 PM



-- Edited by aussie_paul on Thursday 22nd of January 2015 09:44:04 PM

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hako


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Aussie Paul - the video is a great way of demonstrating what you are talking about and shows the thermocouple position beautifully. If I were giving points I'd give you 9.5/10.

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aussie_paul


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hako wrote:

Aussie Paul - the video is a great way of demonstrating what you are talking about and shows the thermocouple position beautifully. If I were giving points I'd give you 9.5/10.

 Thanks Denis, as they say, "a pic/vid is worth a thousand words."

Aussie Paul. smile



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aussie_paul


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How does the flame look to you experienced people?

Aussie Paul. smile



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KFT


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Love the video of your flame

To me the flame size looks to be ok
I cannot tell if the thermocouple is in the right place though.


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Avagreatday.

Kathy and Frank currently at Home near Quirindi NSW
oldtrack123


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Hi Paul
The flame looks good

It may be decieving ,but the Ignitor tip [the right angled rod ] seems to be a long way above the burner 

Does it light easily ? or with a woof?



-- Edited by oldtrack123 on Thursday 22nd of January 2015 11:56:23 PM

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spida


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My red line never has gone into the green - sits on the border, but the fridge works just fine on gas.

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elliemike


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spida wrote:

My red line never has gone into the green - sits on the border, but the fridge works just fine on gas.

 Yes mine is just about on the line White/Green.  Now and then it just goes over into the green.

You can test it by isolating the gas bottle (switch it off)  Expose the gas burner as per the pictures.

 Switch the fridge to "Gas"

Have someone watch the gas flame indicator on the fridge.  

Using a "Gas Match"  Gas lighter

41i0lzJLfML._SY300_.jpg

Direct the flame onto the bulb end of Thermocouple above the burner.

You (the person watching the indicator)  should see how far the indicator will move with direct flame on it.

It might not be worth fiddling and adjusting it,    if the red indicator is at it's limit anyway.

That flame is really good.

Good Post as well.

 



-- Edited by elliemike on Friday 23rd of January 2015 11:14:16 AM

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Hi All.

This is a great way of learning.

It looks so simple now after viewing u tube, will be filing this info away for later use.

Thank you. Ralph.



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aussie_paul


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Thanks everyone, don't you just love Cindy's forum, eh? Thanks Cindy. nod.gif nod.gif

Aussie Paul. smile



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aussie_paul


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oldtrack123 wrote:

Hi Paul
The flame looks good

It may be decieving ,but the Ignitor tip [the right angled rod ] seems to be a long way above the burner 

Does it light easily ? or with a woof?



-- Edited by oldtrack123 on Thursday 22nd of January 2015 11:56:23 PM

Ralph, it does not light easily but have not hear a "woof" (technical work)biggrin. I meant to ask earlier, does the igniter spark jump to the burner or the thermocouple? I have been going to get Eril to push the button so I could see, have not got there yet!!!

Aussie Paul. smile



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oldtrack123


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HI Paul
It should jump to the burner.


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aussie_paul


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oldtrack123 wrote:


HI Paul
It should jump to the burner.

 That is what I thought so the gap may be too wide. The "get Eril to press the igniter button and me watch" scenario needs to occur!! biggrin

Thanks.

Aussie Paul. smile



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aussie_paul


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Ok, did the "get Eril to press the igniter button and me watch" trick and the spark jumped to the thermocouple. I bent the igniter down and now the spark jumps to the burner. Almost dark so will make sure it can't move again in the morning.

Aussie Paul. smile



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