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Norcold RV Refrigerator Won't Stay On Propane - Complete Troubleshooting Guide
Ac Refrigeration Medium 2-3 hours 107 👍

Norcold RV Refrigerator Won't Stay On Propane - Complete Troubleshooting Guide

Called my buddy at midnight when my Norcold RV refrigerator quit staying lit on propane — need to figure this out before our food spoils by morning. and by dream, I mean my Norcold refrigerator has decided it's too good for propane! The thing fires up just fine on LP gas - I can hear it purring away like a happy cat. But then, like a fair-weather friend, it abandons me after an hour or two and shuts itself off.

I'm starting to feel personally rejected by my own appliances. The electric mode works perfectly fine, but when I'm boondocking, my generator and I aren't exactly best friends either. I've heard this could be a thermocouple issue, burner problems, or maybe the control board throwing a tantrum. How do I figure out which component is giving me the cold shoulder (pun intended)? Any diagnostic tips to help me troubleshoot this temperamental beast? …more
Atwood AFMD35 Furnace Playing Peek-a-Boo - How to Clean Flame Sensor & Fix Short Cycling
Propane Medium 30-60 minutes 95 👍 1

Atwood AFMD35 Furnace Playing Peek-a-Boo - How to Clean Flame Sensor & Fix Short Cycling

Staring at my Atwood AFMD35 manual that claims it should stay running once lit, but mine keeps shutting off every few minutes like it's playing peek-a-boo. It fires up beautifully for about 5-10 seconds, gets my hopes up that I won't freeze tonight, then promptly shuts off like it's having second thoughts about this whole "heating the RV" thing.

I've ruled out the sail switch and high temp limit since it actually lights (small victories in RV life, right?). I'm pretty sure the flame sensor is the culprit here, but I've never cleaned one before. How do I clean this mysterious little part, and what's the best way to access it on this model? Because apparently my furnace thinks playing hard-to-get is charming! …more
RV Furnace Blowing Cold Air? Fix Ignition Issues Fast
Propane Medium 45 minutes 95 👍

RV Furnace Blowing Cold Air? Fix Ignition Issues Fast

Staring at my RV furnace blowing cold air at 2 AM with the fan running — desperately need this fixed before morning hits.
I can hear it trying to ignite but it never actually lights. What are the most common causes when a furnace won't ignite? Need to know what components to check and how to diagnose ignition problems myself. …more
Dometic RV Furnace Runs 10 Seconds Then Shuts Off - Complete Troubleshooting Guide
Propane Medium 1-2 hours 93 👍

Dometic RV Furnace Runs 10 Seconds Then Shuts Off - Complete Troubleshooting Guide

The YouTube tutorials I followed to fix my Dometic DFMD35111 furnace that runs 10 seconds then dies actually made it worse—now it won't even start! Every time I try to run it, the same thing happens - it fires up, runs for exactly 10 seconds, then just shuts off completely. This has been going on for weeks now and I'm getting desperate since the weather is getting colder.

I've been trying to troubleshoot this myself but honestly don't know where to start. I can hear the blower running and the unit seems to ignite initially, but then it just dies. Is this a common problem with these Dometic units? I'm really hoping this is something I can fix myself rather than having to call out an expensive repair tech.

What are the most likely culprits when a furnace runs for just 10 seconds then shuts down? I need to know what components to check first before I start taking things apart. …more
Norcold N842IM 'No CO' Error Fix - Complete Propane Troubleshooting Guide
Ac Refrigeration Medium 45 minutes 91 👍

Norcold N842IM 'No CO' Error Fix - Complete Propane Troubleshooting Guide

Apparently everyone has a different theory about my Norcold N842IM's 'No CO' error—my neighbor swears the propane tank's empty, the RV dealer blames the thermocouple, and YouTube insists it's just dirty burners. The fridge works absolutely perfectly when we're plugged into shore power and running on AC - no problems whatsoever with cooling performance or any error codes.

The real problem starts when we disconnect from shore power and head out on the road. The refrigerator switches over to propane mode without any issues initially, and everything seems to be working normally for the first several hours. However, after approximately 8-9 hours of running on propane, I consistently get an alarm and a 'no CO' error code displayed. I've been turning the refrigerator off for about an hour (though I'm not sure if that's the right amount of time), and when I restart it, it runs fine for another 8-9 hour cycle before the same error occurs again.

I'm wondering what could be causing this specific 'no CO' error to appear after this consistent timeframe when running on propane. Is this related to combustion problems, ventilation issues, or something with the propane system components? I'd really appreciate some guidance on what I should be checking and how to properly troubleshoot this recurring problem. …more
AquaHot 450D Frequent Cycling: Troubleshooting Guide & Solutions
Propane Medium 1-2 hours for diagnosis 91 👍

AquaHot 450D Frequent Cycling: Troubleshooting Guide & Solutions

Since my 8-year-old AquaHot 450D started firing up every 15 minutes with zero hot water or heating demand, should I repair or replace it? It's more frequent at night when temps drop. No fault codes showing.

Is this normal cycling behavior? I'm thinking something might be causing heat loss or keeping the system active when it should be idle. …more

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Dometic RV Fridge Won't Ignite Gas Mode: Quick Fix Guide
Ac Refrigeration Medium 2-3 hours 89 👍

Dometic RV Fridge Won't Ignite Gas Mode: Quick Fix Guide

Pulled out my entire toolbox and I'm determined to fix this stubborn Dometic RV fridge that won't ignite in gas mode myself — where should I start? The thing works absolutely flawlessly when it's set to AUTO mode - switches from electric to gas without any issues, ignites on the first try, everything's perfect.

But here's where it gets maddening: the moment I manually switch it to gas mode, it completely refuses to ignite. I can hear the gas valve cycling on and off, but the ignitor just won't fire. It tries a few times then gives up and throws the CHECK light. I've been troubleshooting this for weeks and I'm stumped - why would AUTO mode work perfectly but manual gas mode fail every single time?

I'm really hoping this is something fixable because everything else about this fridge works great. Has anyone experienced this weird AUTO vs manual gas mode issue before? What should I be looking at? …more
RV Water Heater Popping Noise: Causes & How to Fix
Appliances Medium 90 minutes 82 👍

RV Water Heater Popping Noise: Causes & How to Fix

I found myself replacing the heating element, flushing the tank, checking every connection — but my RV water heater still makes these loud popping and crackling noises whenever it's heating up. It's got me a bit worried since I'm not sure what's normal and what isn't with these systems.

Is this something I should be concerned about? Could it be dangerous or cause damage if I don't address it? I've heard people mention draining water heaters but I'm not really sure when that's necessary or how to tell if that's what mine needs. Any guidance would be really appreciated! …more
Suburban SW6D Water Heater Won't Stay Lit: Quick DIY Troubleshooting Guide
Propane Medium 45 minutes 79 👍

Suburban SW6D Water Heater Won't Stay Lit: Quick DIY Troubleshooting Guide

This Suburban SW6D water heater pilot light keeps going out every single time I try to fire it up. The flame keeps going out after lighting, but only when the access door is closed. When I leave the door open, it stays lit just fine.

This seems like it could be dangerous - I don't want to cause a gas leak or explosion by trying random fixes. Is this likely a combustion air problem or some kind of safety switch issue? I'm hesitant to start taking things apart without knowing what I'm dealing with, but I also don't want to keep running it with the door open if that's unsafe too. …more
Dometic RM2453 Ignition System: DSI vs Pilot Light Truth Revealed
Appliances Easy N/A 77 👍

Dometic RM2453 Ignition System: DSI vs Pilot Light Truth Revealed

Spent three hours yesterday trying to figure out if my 2001 truck camper's Dometic RM2453 uses DSI or pilot light ignition and I'm still completely lost. I've been trying to light what I thought was a pilot light, but I'm having issues with it staying lit and producing adequate heat for cooling. The flame seems very low and blows out easily, even though my thermocouple is reading over 20mv which should be sufficient.

After doing some research, I'm now questioning whether this model even uses a traditional pilot light system. I notice there's no wire going to the gas valve for electronic activation, and the only control appears to be the eyebrow board on top. Some sources suggest these units use DSI (direct spark ignition) instead of a standing pilot.

Can someone clarify definitively whether the Dometic RM2453 uses a pilot light system or DSI ignition? Also, does this model have variable burner output stages, or is it just a single on/off operation? Understanding the correct ignition system will help me focus my troubleshooting efforts in the right direction rather than chasing a pilot light that may not even exist on this model. …more
RV Propane Furnace Clicks But Won't Light - Fix Guide
Propane Medium 45 minutes 75 👍

RV Propane Furnace Clicks But Won't Light - Fix Guide

Our RV's propane furnace was clicking but wouldn't light, so I followed three YouTube tutorials and now it won't even click anymore! When I flip it on, I hear it clicking away like it's trying to ignite, but no flames ever show up. The clicking goes on for a bit then just stops, and I'm left shivering in my rig.

I've got propane in the tanks and other appliances work fine, so I don't think it's a supply issue. But maybe I'm wrong? Could this be the igniter going bad, or is there something else I should check first before calling a repair shop? …more
RV Furnace Won't Ignite Just Clicks - Troubleshooting Guide
Propane Medium 60 minutes 75 👍

RV Furnace Won't Ignite Just Clicks - Troubleshooting Guide

Already spent my RV repair budget this month — is there a way to fix my furnace that just clicks instead of igniting for under $50? The thing keeps making clicking sounds like it's auditioning for a marching band, but refuses to actually ignite and warm up our rolling icebox.

I'm hearing all this clicking and anticipation, like it's really trying its best, but then... nothing. Just cold air and the sound of my dreams of cozy RV evenings slowly dying. Is this a sail switch throwing a tantrum? Bad igniter having an identity crisis? I need some troubleshooting guidance before I resort to wearing all my clothes at once like some kind of mobile marshmallow! …more
Dometic RV Furnace Flame Lights Then Dies: Complete Fix Guide 2024
Propane Medium 1-2 hours 72 👍

Dometic RV Furnace Flame Lights Then Dies: Complete Fix Guide 2024

My Dometic DFMD35111 furnace does the same infuriating thing every fall — lights perfectly on startup then immediately dies out. The flame lights up no problem, but then it just dies out randomly - sometimes after like 3 seconds, other times it'll run for several minutes before cutting out. It's totally unpredictable.

I've already cleaned out some bugs from the burner area and messed with the sail switch, but it's still doing this intermittent thing. The flame sensor looks pretty gunky though. Could that cause these random flame failures? And what else should I be checking when the burn time is all over the place like this? …more

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Dometic RV Refrigerator Not Cooling on Propane: A Complete Troubleshooting Guide
Ac Refrigeration Medium 2-3 hours 71 👍

Dometic RV Refrigerator Not Cooling on Propane: A Complete Troubleshooting Guide

Nobody can agree on what's wrong — my neighbor blames the thermocouple, the RV dealer says it's the burner assembly, YouTube claims gas pressure issues, yet my Dometic refrigerator works fine on shore power but won't cool on propane. However, when I switch to propane mode for boondocking, it's a completely different story.

The propane burner does ignite and I can see the flame burning, but the refrigerator simply will not cool down at all. It stays at ambient temperature no matter how long I leave it running on propane. I've checked and the propane tanks are full, and my other propane appliances (stove, water heater) work fine, so I know gas is getting to the unit. The cooling unit itself seems fine since it works great on electric.

I'm wondering if this could be related to the burner assembly, thermocouple, or something with the flue system? I'd really like to understand what the most common causes are for this type of issue where electric mode works but propane mode doesn't cool, and what troubleshooting steps I should take to diagnose and fix the problem. …more
RV Fridge Loses 12V Power When Engine Starts: Battery Isolator Fix
Ac Refrigeration Hard 2-4 hours 66 👍

RV Fridge Loses 12V Power When Engine Starts: Battery Isolator Fix

Standing next to my RV with my kids nearby, I'm worried it's dangerous that the fridge completely loses 12V power every time I start the engine. I've got kids around and I'm worried about electrical issues. Just picked up a 2005 Holiday Rambler Imperial and discovered the fridge has commitment issues - it runs like a dream until I dare to turn the ignition key (not even starting the engine, mind you), then it completely loses 12V power and goes on strike.

The moment I turn the key back off, it's happy as a clam again. I'm pretty sure this isn't normal behavior, unless my fridge has developed some kind of performance anxiety around the ignition system. Something tells me this is related to the battery isolator or relay system, but I'm hoping someone can point me in the right direction before I start randomly poking at electrical components like some kind of RV repair roulette! …more
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