Fridge Flame Surging On Low Settings - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-03-2019, 07:52 AM   #1
Senior Member
 
ZachO's Avatar
 
Name: Zach
Trailer: 91 Bigfoot 17
Montana
Posts: 1,860
Registry
Fridge Flame Surging On Low Settings

I know the first thing to do is check out the burner, but how I'm parked right now makes it impossible to get to the back of the fridge. I'll pull out of here in a week or so.

In the meantime I'm looking for ideas. My fridge was working fine all summer, but at one point about a month ago it didn't seem like it was cooling well. I took out the burner and noticed the jet ruby was cracked.

I ordered a new once and installed it. It's working great on high settings, which in July and August are almost all I'm using. But now and then when it cools down enough at night and starts freezing my food, I turn it down towards the low settings, and it starts surging. It'll almost go out, then I hear a quiet roar/pop of propane lighting, then it dims...until it sort of pops on again. It eventually works itself out and is fine on the low setting.

It's also much harder to get lit than it was before. It takes a few minutes and running a stovetop burner to get it to stay lit.

Does anyone who cleans their fridge burner enough know if a washer is required on the burner jet? The original had one, but when I installed it with the new one, it didn't seem to fit the same and warped out of shape. It was a very soft, malleable washer.

Anyway, all other causes aside (propane pressure, dirt etc.), any ideas? I'll clean everything and check pressure, but things were fine with the old jet. All I did was put in a new one, nothing else changed.
__________________

ZachO is offline   Reply With Quote
Old 08-03-2019, 07:10 PM   #2
Senior Member
 
ZachO's Avatar
 
Name: Zach
Trailer: 91 Bigfoot 17
Montana
Posts: 1,860
Registry
Edit: It doesn't eventually work itself out. At least not today. It stopped "burping", and seemed to be fine for about an hour, but eventually went out, and took almost 5 minutes to get started again. I guess I'll pull the trailer forward a ways and check the gas pressure. Not sure why it would have changed suddenly, but who knows! Propane regulator was new last summer.
__________________

ZachO is offline   Reply With Quote
Old 08-04-2019, 04:15 AM   #3
Raz
Senior Member
 
Raz's Avatar
 
Name: Raz
Trailer: Trillium 2010
Vermont
Posts: 4,538
When I changed my regulator, I found oil in the line. A couple tablespoons perhaps. Others have reported finding oil as well. Might be the cause of your problem?
Raz is offline   Reply With Quote
Old 08-04-2019, 05:50 AM   #4
Senior Member
 
Name: Gordon
Trailer: 2015 Scamp (16 Std Layout 4) with '15 Toyota Sienna LE Tug
North Carolina
Posts: 3,334
Quote:
Originally Posted by Raz View Post
When I changed my regulator, I found oil in the line. A couple tablespoons perhaps. Others have reported finding oil as well. Might be the cause of your problem?
Mine had water in the regulator.. I'm sure it was because the reg was not mounted in the correct orientation. The reg was actually leaking gas.

Sorry but I can't answer your primary question. However a bad regulator is a good suspect. With the small flame, the fridge is more susceptible to pressure problems. A full system test with a manometer should have been done, including pressure drop, lock-up tests. Experts say to do the testing annually in fact.

gordon2 is online now   Reply With Quote
Old 08-04-2019, 08:13 AM   #5
Senior Member
 
ZachO's Avatar
 
Name: Zach
Trailer: 91 Bigfoot 17
Montana
Posts: 1,860
Registry
Thanks.

Well this seems to be the summer of projects rather than getting out in the mountains, so I'll pull the camper forward today and do an in-depth check of the lp system.

In my old Chinook, I remember hearing that oil gurgling as I ran the propane. Not sure if I have any in this system or not. I'll do some checking today on a bunch of stuff.
ZachO is offline   Reply With Quote
Old 08-04-2019, 07:09 PM   #6
Senior Member
 
ZachO's Avatar
 
Name: Zach
Trailer: 91 Bigfoot 17
Montana
Posts: 1,860
Registry
No leaks, and I didn’t really check for sludge, but for some reason the pressure was down at about 9.5. I bumped it up to around 10.7. I’ll see in the morning when it’s cooled off if it still has issues at lower settings. Struggling to keep up in this heat!
ZachO is offline   Reply With Quote
Old 08-04-2019, 08:09 PM   #7
Senior Member
 
Civilguy's Avatar
 
Name: Mike
Trailer: Escape 21 & Jeep GC 5.7 (Previous 2012 Casita FD17 & 2010 Audi Q5)
Puget Sound, WA
Posts: 1,073
Registry
Regulator pressure, ruby orifice, clear passage through the gas line...

...it seems like that's about all there would be to the system here.

Do you have the service manual with troubleshooting guide?

I have a bunch of them filed away here. If you don't mind posting what the fridge is, (yeah, I should know by now!), I'll try and see if there's anything else listed as a possible cause...
__________________
~ "This post is a natural product. Slight variations in spelling and grammar enhance its individual character and beauty and are in no way to be considered flaws or defects." ~
Civilguy is offline   Reply With Quote
Old 08-05-2019, 07:25 AM   #8
Senior Member
 
ZachO's Avatar
 
Name: Zach
Trailer: 91 Bigfoot 17
Montana
Posts: 1,860
Registry
Thanks. I have the stuff that came with the fridge. Installation and user guide with troubleshooting section. When I google the issue, I don’t see anything similar.

It’s a rm2301
ZachO is offline   Reply With Quote
Old 08-05-2019, 07:31 AM   #9
Senior Member
 
ZachO's Avatar
 
Name: Zach
Trailer: 91 Bigfoot 17
Montana
Posts: 1,860
Registry
This morning, if I turn the dial down below 1/4, I see a flickering flame, with lots of orange instead of blue. At least through the glass viewer on the front of the fridge.

Ruby is clean, burner is clean.

At 1/4 or higher, I see a nice, steady blue flame.
ZachO is offline   Reply With Quote
Old 08-05-2019, 08:50 PM   #10
Senior Member
 
ZachO's Avatar
 
Name: Zach
Trailer: 91 Bigfoot 17
Montana
Posts: 1,860
Registry
Well the only thing that’s changed, that I know of, is the missing washer. I see it in my replacement parts manual, but I don’t see that anyone sells them, so I’ll just bring the jet to the hardware store and buy a washer that fits. We’ll see...not sure how critical the size of that air gap is, when we’re talking about millimeters.
ZachO is offline   Reply With Quote
Old 08-08-2019, 12:34 PM   #11
Senior Member
 
Civilguy's Avatar
 
Name: Mike
Trailer: Escape 21 & Jeep GC 5.7 (Previous 2012 Casita FD17 & 2010 Audi Q5)
Puget Sound, WA
Posts: 1,073
Registry
I looked at the installation and operating instructions here.

On page 14 under "The Burner and the Burner Jet", they mention cleaning the burner assembly twice a year.

On page 14 under "FAULT TRACING" they mention "2) Feeler point of the flame failure safety device is not heated enough by flame."

On page 13 under "The Flame Failure Safety Device" it says "The feeler of the thermo couple shall reach in over two slots of the burner."

Pretty slim pickings.
__________________
~ "This post is a natural product. Slight variations in spelling and grammar enhance its individual character and beauty and are in no way to be considered flaws or defects." ~
Civilguy is offline   Reply With Quote
Old 08-10-2019, 11:44 AM   #12
Senior Member
 
ZachO's Avatar
 
Name: Zach
Trailer: 91 Bigfoot 17
Montana
Posts: 1,860
Registry
Thanks Mike. I noticed that too. Mine is over 2 slots of the burner.

I stuck a washer in there but it was so thick compared to the old one that I didn’t feel safe about it. With no washer it’s closer to the right gap than with a thick washer, and that’s all I can find so far. I’ll need to check an Rv shops repair department and see what they’ve got. Everything at the hardware store is too thick, and I haven’t found an online shop who carries them.

Still no idea if this is my problem, but I should get it right either way.

As of now, my vent fan died so that’s my priority. Amazing how poorly it cools without that fan.
ZachO is offline   Reply With Quote
Old 08-10-2019, 02:40 PM   #13
Senior Member
 
Civilguy's Avatar
 
Name: Mike
Trailer: Escape 21 & Jeep GC 5.7 (Previous 2012 Casita FD17 & 2010 Audi Q5)
Puget Sound, WA
Posts: 1,073
Registry
Quote:
Originally Posted by ZachO View Post
As of now, my vent fan died so thatís my priority. Amazing how poorly it cools without that fan.
Yeah, after seeing a photo of the sidewall vent on your trailer, I'd say it's a serious challenge to just get the heat out of that area.
__________________
~ "This post is a natural product. Slight variations in spelling and grammar enhance its individual character and beauty and are in no way to be considered flaws or defects." ~
Civilguy is offline   Reply With Quote
Old 08-10-2019, 05:19 PM   #14
Senior Member
 
mszabo's Avatar
 
Name: Mike
Trailer: 1986 Bigfoot FT20
Michigan
Posts: 839
If you have oil in your line you have dirty propane. The things you are saying indicates that is your problem.
If you have a low tank, trade it off. You will need to clean your jet and orfice.
Have you been getting your fuel from someone driving around the park in a propane truck?
That’s where the problem lies. Oil in the bottom of their tank goes into yours, because of their setup.
__________________

mszabo is offline   Reply With Quote
Reply

Tags
fridge


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Orange Flame on stove and fridge pilot DAVIDERIN7 Plumbing | Systems and Fixtures 19 10-20-2015 06:00 AM
Low Burner Flame - Coleman 4312 Furnace Walkintree Problem Solving | Owners Helping Owners 6 06-10-2015 08:32 AM
Honda Generator Surging At Idle Patrick M. Problem Solving | Owners Helping Owners 15 05-05-2010 09:25 AM

» Upcoming Events
No events scheduled in
the next 465 days.
» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:05 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.