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RE: Dometic RM2652 no power to upper control board
Great to complete this thread with a great resolution.
Sadly some folks do not complete threads like this.
Thank you sir,
Jim.
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bigfootford
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10/01/23 08:27pm |
Tech Issues
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RE: Flat towing with your truck camper
Yes to ReadyBrake... Over 6,000 miles towing over 15 years.. Works great.
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bigfootford
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09/30/23 09:55am |
Truck Campers
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RE: Dometic RM2652 no power to upper control board
Wonderful, you got the dang thing fixed and now you know how simple that system works!
Congrats!!!
Jim.
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bigfootford
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09/05/23 11:32pm |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
It is more expensive than the original reignitor but if the original one was still available I bet the price would not be what you find of places that did have them but are out of stock. I made sure I bought an original Atwood part and not a knock off made just like it.
Here are links to video and part.
Video
https://youtu.be/CHRTDWqUYTI?si=-frbrjvfqJ98aDsx
Part
https://www.amazon.com/gp/product/B01LRJ4TPO?ref=ppx_pt2_tab_b_prod_image
Great!
Here is the linkieeessss.
https://youtu.be/CHRTDWqUYTI?si=-frbrjvfqJ98aDsx
https://www.amazon.com/gp/product/B01LRJ4TPO?ref=ppx_pt2_tab_b_prod_image
Jim.
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bigfootford
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08/24/23 11:13am |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Excellent find Ken.
Put a link to the video and the part when you get a chance.
Jim.
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bigfootford
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08/24/23 10:32am |
Tech Issues
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RE: 2004 2500 series Bigfoot
Whahoo! Hope it exceeds your expectations. We sure love ours. 24 years now.
Jim.
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bigfootford
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08/16/23 02:49pm |
Truck Campers
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RE: Question on Coleman 100W Solar Panel "open circuit" voltage
Well I have never seen this phenomenon...hahahaaa.
Spec ISC and low Voc.. Like a bypass diode shorted but why is the ISC at spec. Going to have to see if there is an answer from someone else or join the Northern Arizona solar elect forum... I am a member over there. If you get no answer and can not become a member when I get some free time next week I will ask over there.
Jim
https://forum.solar-electric.com/
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bigfootford
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07/26/23 05:44pm |
Tech Issues
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RE: Question on Coleman 100W Solar Panel "open circuit" voltage
With most DVM's, set the meter to 10 amps and move the lead to the 10 amp position. If you do not you will blow the internal protection fuse for the lower amp readings.
Jim.
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bigfootford
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07/26/23 10:48am |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
What happened? Fixed?
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bigfootford
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07/19/23 11:27am |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Ok we got the noise thing sorted out..hahahaa.
The Igniter has three jobs!
1 Produce a spark
2. Wait to sense that there is a flame, if no flame for about 30 seconds you will get a check light. Not sure if the igniter does mutiple sparks in this situation.
3. Sense that there is a constant flame. This allows the Thermocouple
to warm up and produce a small voltage on it's wires that attach to the control board. A lost of flame from wind or loss of propane it will be detected/sensed and cause a retry, 'spark" to relight. If no flame is sensed after the retry the thermocouple will cool and a check light occurs.
A note, the Dinosaur board does an attempted recovery from a flame out due to wind etc it will retry XX times before it stops and lights the check light.
The sense of flame is the Igniter sensing a small current flowing from the burner, through the flame to the electrode then up the wire to the Igniter! The flame actually produces the small current!
I'm unsure if we can hear a good igniter make a sound with the electrode wire disconnected from the Igniter.
Replacement is going to be problematic from what I have researched.
This one is the only one I have found and the Vendor list of Dometic fridges does not include our 2652's.... You might contact them and ask if it will work.
I doubt it but might be worth a try. Expensive though.
https://www.ebay.com/itm/164674934043
I can not imagine that there are no igniters avail for this fridge. Found none online.
I called our local Camping World and they have none. Not very helpful.
Called a local Trailer and RV parts... They have them in stock $47.81
They do not ship... :(
I think you will need one... I would contact a RV parts and service near where you live and see if they have them....
Jim.
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bigfootford
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07/06/23 11:38am |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Jim, Just to be clear. I did hear the ignitor snapping/pulsing with the ignitor plugged in and also with it unplugged. On the last part of your last post when you said (If you have 0 ohms on the igniter wire to the electrode and the screw that retains the cerramic tip is tight, and do not hear the snapping then the wire has a short somewhere there at the screw.) Is the snapping you are talking about at the electrode(spark)? Not pulsing at the ignitor. Thanks
You say that you hear the NOISE both with the electrode wire connected and the electrode is screwed tight and in position but you see no spark and you hear the NOISE with the electrode wire disconnected from the igniter.....
Are the sounds different or the same? Arc is a snap , not sure what the pulsing is you're talking about.
Do the ohms measurement. Disconnect the Electrode wire and measure the resistance from the connector to the electrode tip... Should show 0 ohms.
Then measure the resistance from the electrode wire, still disconnected, to the little tab that the screw holds the electrode ceramic to the burner frame . Make sure the screw is holding the tab tightly to the burner frame. You should see no connection thus no meter reading.
We know that the control board is working because you said that you saw 12vdc on the Solenoid.... I THINK you said you can hear the solenoid click on. It should stay on and then click off after about 3 seconds.
Jim.
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bigfootford
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07/05/23 04:35pm |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Oops sorry. Glad you asked the question about the igniter pulsing.
When you disconnect the electrode wire from the igniter and hear the clicking it would mean that the electrode wire has a short.
I will correct my post...
You can tell if the electrode wire is open (no connection) or has connection to the electrode with your DVM.
There should be a near "0" resistance reading measuring from the igniter connector wire to the electrode. Set your dvm on 200 ohms scale... Touch the DVM leads together, you should read almost 0 ohms. Then do the connector on the wire to the electrode tip. Should read near 0 ohms.
If the electrode wire was open, no connection then you should hear the igniter clicking/snapping.
If you have 0 ohms on the igniter wire to the electrode and the screw that retains the cerramic tip is tight, and do not hear the snapping then the wire has a short somewhere there at the screw.
Jim.
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bigfootford
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07/05/23 02:53pm |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Ok, here is the picture posting link, designed by one of our RV.net folks.
You will have to add it to your web links/favorites so you can use it whenever you want.
If you do not then you will have to find the website every time to post a picture.
Bummer that the RV.net website software does not work like most typical webs when you want to post a pix. We have asked for a change for 20 years, no kidding!
So use the link below....
The app will give you the URL to post, just copy it and post it in your Post text.
You need to copy and paste this URL on a different tab...Ugg tab? Otherwise you will not be redirected to this link and you will loose your RV.net web tab... Sucks.
Hope you can understand the steps.
Once you have done this save the URL into your favorites!
http://photoposting.is-great.net/?i=2
Find your picture.
Select it.
Copy the url that the app gives you and post it into your text of the post.
Sorry if It is not real clear.
Jim.
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bigfootford
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07/01/23 07:31pm |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
I used my Fluke meter and got 13.2v at the 12v block. Then I got 13.2v at the yellow wire going into the reignitor with the yellow wire plugged in. I could here the reignitor pulsing but no spark at the electrode. When I bought the electrode it said it was Dometic and had a Dometic model number. I wonder if it could be a fake or something like that. When I first hooked it up I got just a small spark for a short while. Then after adjusting it some it quit sparking at all. Even just trying to hold it with insulated pliers and moving it at different distances to the metal I could not get it to spark. Of coarse with gas shut off. Here is a couple of pics the way it is right now. Having trouble posting pics. Will try again after while. Thanks
When this is all over you will be the guru of Dometic igniter operation and will help others as you travel etc... I have for years. Dirty burner and electrode contamination have been nearly 100% of the troubles.
Voltages are good! Only thing left is the igniter sending a spark and the valve opening!
So you hear it snapping but not spark?
Disconnect the electrode wire from the Igniter and test again and see/listen if you hear the snapping of an arc!
If you (EDIT) hear it then the electrode wire is shorting some where between the Igniter connection and the tip of the electrode!
Will post about how to add a pic. a bit late. I do not have the linkon this computer..jhahahaaa.
Jt
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bigfootford
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07/01/23 06:58pm |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Since I have the fridge on cant I just unplug it in the access panel and it switch to gas automatically to test the voltage at the gas valve and reignitor? I might have to do it a couple of times since it might not stay active long enough to test both. I might just test at the reignitor since I can here the gas valve turn on. I will use the ground lug where the reignitor is grounded for my test. Thanks
Yes you can do that but the voltage is only going to be there for about 3 seconds. You might need someone to help you.
Test your DVM on a dry cell battery or on the fridge 12 volt source to make sure it is reading 12 vdc. Set the DVM to 20 vdc!w
Fridge power on.
Have it on AC.
Pull the plug
You should hear the gas valve click.
Watch the voltage on the gas valve or the IGNITER if you can get on the wire.... You will see it for only 3 seconds or so.
Jim
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bigfootford
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06/30/23 09:39am |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Well I do see the igniter/solenoid output connector on the control board wiring is different from you board.
Dinosaur says:
*Warning: The Micro P-711 CANNOT replace any Black Box Board part number that starts with "385"! You must identify
the part number of the physical board that is actually in your refrigerator now! Failure to do so can result in getting the wrong
board! Please look on the black cover or under the black cover for a part number that begins with "385 or "293"
I noticed that your board says Canada on it...Wonder if that is the reason it is different. I have no clue about that.
If you have the 12vdc coming off that Yellow wire when it is ignite time then the control board is good. Igniter would be in trouble.
If you are in doubt I would call Dinosaur or email them. They are good folks.
Bryant's and dougrainer are fellas that have been in the RV service business for years and have been valuable for tech support on the appliances etc....On RV.net.
Here is a nice write up from Bryant's about the fridge theory of operation...
http://bryantrv.com/refcontrols.html
Jim.
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bigfootford
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06/29/23 03:08pm |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Here is a Dometic wiring diagram, Daves is simple.
https://manuals.heartlandowners.org/manuals/Appliances/Refrigerator/Dometic/Dometic-Refer-Model-RM2652-Wiring-Diagram.pdf
Here is the Dometic Service tips....
https://manuals.heartlandowners.org/manuals/Appliances/Refrigerator/Dometic/Dometic-Refer-Model-RM2652-Service-Tips.pdf
These are something you should download and print out.
Jim.
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bigfootford
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06/29/23 02:23pm |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
There is only one place on this board that the gas valve and ignitor power can plug into. The 12v power wire goes from the control board to the gas selenoid valve to the ignitor. I guess I should check and make sure it is not loosing voltage from the selenoid valve to the reignitor. My board is 385 04 15-01 if I replace it with a Dinosaur board does it have the reignitor built into it? I was told you cant get a replacement reignitor. Do I use the original thermocouple and ignitor? I dont want to buy a new board if the reignitor is bad and cant be replaced. Thanks
The Dinosaur board for the 2652 does not have the igniter built in.
Wow, OEM igniter is no longer avail. This is the only place I have found it...
https://www.ebay.com/itm/164674934043
Make sure that you have yours wired up properly..
Look at this simplified diag at Dave's Place and make sure that the wire from the solenoid to the igniter + then to the control board is in the proper place... AND the ground wire goes to ground!
You should hear the gas valve turn on for about 3 seconds if the control board is working correctly. That signal turning on the gas valve is the same signal that tells the Igniter to start firing!
You should see the 12vdc at the wire on the gas valve as you turn on the fridge in the gas mode! One wire is - negative and the other is the signal 12vdc.
http://dave78chieftain.com/2807tronics.html
Jim.
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bigfootford
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06/28/23 08:49pm |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Correct, if the Control board is working correctly to run the fridge on AC.
Also, since the gas valve is clicking that part is working too.
That means the igniter is defective or the signal from the control board to the igniter is not working.
Make sure that the igniter wiring from the control board is in the proper connector on the control board.
If you have a dvm you can watch the signal, 12vdc coming out of the control board to the igniter. It should go to 12vdc when you turn on the fridge and have the gas button depressed. Have to have someone help you do this. The signal is going to be there for about 3 seconds...
I had to replace my igniter about 10 years ago. I also replace my control board because when traveling, sometimes the flame would go out due to wind. I got the Dinosaur Board and ended that issue.
The Dinosaur board will retry relight several times... Also has an adjustment that you can raise or lower the fridge temp a couple of deg.. Nice feature too. Search for Dinosaur board domestic.
Jim.
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bigfootford
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06/28/23 11:41am |
Tech Issues
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RE: Dometic RM2652 no power to upper control board
Ok I got my new Electrode in today. I installed it and I do get a spark but the flame will not light. I lit it with a long grill lighter and the flame looked good and blue and stayed lit until I turned it off in about 30 minutes. I dont think the gap and position of the tip of the electrode is good. How can I adjust the gap and position of the electrode? Can you bend it? Thanks
Should be able to bend the little tab that is held by the little screw. If not just bend the electrode. Make absolutely sure your hands are clean and NO oils when touching the ceramic isolator.
Test the electrode with a screwdriver. Hav e someone turn the fridge on while you use the screwdriver to almost shot the tip of the electrode.
Should hear and see the spark. Valve opens with a click and a millisecond later the spark should occur.
Your back from your trip?
Jim.
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bigfootford
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06/27/23 09:28pm |
Tech Issues
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