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RV Water Pump Losing Prime: Troubleshooting & Winterization
Plumbing Medium 2-4 hours 447 👍 9

RV Water Pump Losing Prime: Troubleshooting & Winterization

Got a 2022 Tiffin Open Road 34PA with a water pump that keeps losing prime during winterization — about to buy a replacement but wondering if I'm throwing money at the wrong problem? I can get it back by quickly opening and closing one of the lowest drain valves, but then it just loses prime again after a while. This has happened on other RVs I've winterized too, but it's particularly stubborn on this Tiffin.

I'm suspecting it might be the inline check valve next to the pump or maybe the one behind the Truma hot water heater, but I'd love some guidance on proper diagnosis. What are the most common causes of prime loss during winterization, and what's the best way to troubleshoot and fix this? I want to make sure I'm covering all my bases for winter storage prep. …more
Onan 5500 Generator Problems: Complete Repair Guide 2024
Engine Medium 2-6 hours 290 👍 1

Onan 5500 Generator Problems: Complete Repair Guide 2024

Spent three hours testing my 2014 Hurricane's Onan 5500 gen getting 11.8 volts output when every manual says it should be 12+ volts! Here's the weird part - when I disconnect the remote harness, the generator fires right up and purrs like a kitten. But the second I plug that remote connection back in, boom - both the remote start light AND the generator start light come on, and then... nothing. Won't start at all.

The really bizarre symptom is this chattering from the fuel pump when the remote is connected. I can literally feel the fuel line jumping around when I put my hand on it. It's like the pump is having some kind of seizure or something!

I'm guessing this has to be some kind of electrical issue between the control board and the remote system, but I've never seen anything quite like this before. Anyone dealt with this specific combo of symptoms on an Onan 5500? Really hoping there's a known fix because pulling this thing out of the RV again would be a major pain! …more
ECM Low Battery Warning RV: Complete Diagnosis & Fix Guide
Electrical Medium 2-6 hours 231 👍 1

ECM Low Battery Warning RV: Complete Diagnosis & Fix Guide

During a family trip, my 2005 Fleetwood Discovery 39S threw code 168-1 for low ECM battery voltage and went into full shutdown mode—is this dangerous with kids onboard? Engine cut out, transmission selector went dark, ABS warnings everywhere - the whole nine yards. Scared the heck out of me when it happened on the interstate!

I'm seeing this seems to be a thing with these diesel pushers, but I'm drowning in conflicting info online. Some say it's the chassis battery, others blame alternator issues, and I've even seen posts about ECM power supply problems on the Caterpillar engines. What's the actual step-by-step process to track this down? And more importantly, how do I fix it so it doesn't leave me stranded again? Really need a complete walkthrough of what causes this code and the proper repair approach. …more
RV Grey Water Tank Clogged? 7 Proven Solutions to Clear Blockages Fast
Plumbing Medium 1-2 hours 155 👍

RV Grey Water Tank Clogged? 7 Proven Solutions to Clear Blockages Fast

Found out my RV service tech wants $800+ to replace the entire grey water system on my 2007 RV for an intermittent blockage that seems fixable. It doesn't seem to matter if we're level or not - it's completely random.

I've tried using a high suction shop vac and even attempted snaking it, but I'm nervous about forcing things and making the problem worse. I suspect it might be a manufacturing plug that fell into the tank, but I'm not sure. I found one solution with a reverse flush valve that seems to work temporarily, but I'm concerned about the underlying cause.

What are the safest and most proven methods to diagnose and fix these random grey water blockages? I don't want to damage the tank or create bigger problems, but this unpredictable draining is driving me crazy. Are there specific cleaning products or techniques that actually work without risking harm to the system? …more
How to Find Reliable RV Repair Shops: Expert Tips & Red Flags to Watch Out For
General Easy 20 min research 137 👍

How to Find Reliable RV Repair Shops: Expert Tips & Red Flags to Watch Out For

About every summer my 2004 Adventurer runs like a dream until temps hit 85°F, then it breaks down constantly and no shop can figure out why. The main slide out has been acting up with the HWH hydraulic system, and I honestly don't know enough to fix it myself.

I'm worried about getting taken advantage of since I don't really know what questions to ask or what warning signs to watch out for. I've heard horror stories about people paying huge bills for shoddy work. What's the best way to research and find a reliable shop? Are there specific things I should ask them before I commit to having work done?

Any guidance would be really appreciated - I just want to make sure I'm being smart about this and not walking into a bad situation. …more
RV DC Electrical System: Expert Guide to 12 Volt Systems
Electrical Medium 30 min read 131 👍

RV DC Electrical System: Expert Guide to 12 Volt Systems

Opened my RV this morning to find the 12V system going haywire — lights dimming randomly, fans slowing down, and the inverter shutting off despite full batteries.

Specifically, I need to understand the fundamentals of RV batteries - different types, proper sizing, charging requirements, and maintenance. I'm also confused about DC wiring best practices, what gauge wire to use for different applications, how to properly route and protect circuits, and where fuses and breakers should go. Voltage monitoring is another area where I'm lost - I see all these battery monitors and don't know what I actually need or how to interpret the readings.

I'm also planning some system upgrades down the road like adding solar or upgrading to lithium batteries, so I'd love to understand how all these components work together and what I need to consider for future modifications. Is there a comprehensive resource that covers all aspects of RV DC electrical systems from batteries and wiring through monitoring and upgrades? …more

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Coleman Mach AC Fuse Blows With Battery On - Rockwood Fix
Ac Refrigeration Medium 2-3 hours for diagnosis, professional repair likely needed 122 👍

Coleman Mach AC Fuse Blows With Battery On - Rockwood Fix

Found out the hard way that the previous owner of my 2019 Rockwood Minilite 2509s left me with a Coleman Mach AC that blows fuses instantly when I flip on the battery. The AC fuse blows instantly when I turn on the battery disconnect, before the AC is even activated. The fuse literally blows before it's completely seated in the panel.

This began two weeks ago without warning - the system had been functioning normally prior to this. Initial fuse replacement provided temporary operation, but the problem returned on the next trip with the fuse already blown upon arrival.

Given the immediate fuse failure with just battery power connected, what type of electrical fault would cause this symptom pattern in a Coleman Mach unit, and what's the most likely location of the problem in the AC circuit? …more
Xantrex Freedom X 1200 Inverter Low Battery Warning: Critical 11.2V Fix Guide
Solar Batteries Medium 1-2 hours 120 👍

Xantrex Freedom X 1200 Inverter Low Battery Warning: Critical 11.2V Fix Guide

Walked into my new RV and discovered the previous owner left the Xantrex Freedom X 1200 inverter constantly throwing critical 11.2V low battery warnings. My Xantrex Freedom X 1200 inverter is displaying warning indicators on the panel, and I'm seeing some concerning voltage readings that have me worried about potential damage to my electrical system.

Here's the complete situation: My house battery is reading 11.2 volts, while the chassis battery shows 13.1 volts. The inverter panel is lit up with what I assume are low voltage warnings. I've been noticing the interior lights dimming significantly, especially when trying to run any appliances through the inverter. To make matters worse, it's currently overcast and getting dark, so my solar panels aren't generating any meaningful charge to help recover the battery.

I'm particularly concerned because I know lead-acid batteries can be permanently damaged if they're discharged too deeply. The voltage reading of 11.2V seems critically low to me, but I want to understand exactly how urgent this situation is and what my immediate next steps should be. Should I be looking at shore power connection, generator use, or is there something wrong with my charging system that caused this in the first place? I need to know both the immediate fix and what might have caused this failure. …more
RV 12V Lights Dimming: Complete Troubleshooting Guide
Electrical Easy 30 minutes 120 👍

RV 12V Lights Dimming: Complete Troubleshooting Guide

My neighbor insists it's the converter, the RV dealer swears it's bad wiring, and every YouTube video claims it's a dying battery—but my 12V ceiling lights keep dimming! One evening they're blazing bright like a casino, the next morning they're giving off all the enthusiasm of a sleepy firefly.

I've already checked my batteries, and they seem to be charging fine and in good shape. The converter is still humming and its fan is running normally. I'm pretty sure this isn't some fancy mood lighting feature I accidentally activated (though knowing my tech skills, anything's possible). The dimming seems totally random - sometimes they're fine, sometimes they look like they're on their last legs.

I've got a basic multimeter that I pretend to know how to use, but I'm not sure where to even start poking around. As a bonus weirdness, some of my under-cabinet light switches and the wall switch for the ceiling lights are getting really hot. Anyone know what typically causes this whole disco light show situation with 12V lighting systems? …more
Ford F53 Motorhome Key Programming Guide: Security Features & Programming Tips
Engine Medium 2-4 hours (including dealer visit) 112 👍

Ford F53 Motorhome Key Programming Guide: Security Features & Programming Tips

Apparently my 2008 Ford F53 motorhome is 16 years old and starting to have key programming issues — should I attempt DIY programming or call a locksmith? I just dropped $176 on two new transponder keys for my 2024 Windsport 34R (2022 F53 chassis) because I only had one set and didn't want to get locked out in the middle of nowhere wearing my pajamas and fuzzy slippers (again).

The Ford dealer quoted me another $140-170 to program these fancy chip keys, insisting I'd need to haul my 35-foot house-on-wheels down there for the programming. But the parts guy said "try them first" - and wouldn't you know it, both keys fired right up without any programming!

So what's the deal here? Are these unprogrammed transponder keys going to mysteriously stop working next Tuesday? Did I just dodge a bullet, or am I missing out on some important anti-theft features that actually matter? I'm feeling pretty smug about saving that programming fee, but also slightly paranoid that my motorhome might strand me at the worst possible moment! …more
Furrion FMCM15-SS Microwave Parts & Repair Guide - Complete Replacement Guide
Appliances Medium varies by part 110 👍

Furrion FMCM15-SS Microwave Parts & Repair Guide - Complete Replacement Guide

Called three RV repair shops about my dead Furrion FMCM15-SS microwave and they all want $200+ — any DIY fixes for under $50? 🤦‍♂️

I'm trying to track down replacement parts but I'm having about as much luck as finding a level campsite during peak season. Does anyone know the best places to source parts for this model? I'm particularly wondering about common failure items like door latches and turntable motors - seems like these microwaves have their favorite ways to quit on us! …more
Ford F53 RV Chassis: All Headlights Out - Complete Diagnosis & Repair
Electrical Medium 1-2 hours 104 👍

Ford F53 RV Chassis: All Headlights Out - Complete Diagnosis & Repair

Pulled out my multimeter on this dead F53 headlight situation and I'm getting 12.4V at the relay when every Ford manual says it should read 12.6V. My 1999 Mountain High Pinnacle Class A with 76,000 miles on a Ford F-53 chassis has me stumped - ALL four headlights (both high and low beams) just went completely dead, but here's the weird part: every single other light works perfectly. Taillights, brake lights, turn signals, markers - they're all fine.

When the headlight switch is on, there are no headlights at all, and the blue high beam indicator remains constantly lit. I noticed a strange clicking sound from under the hood about every 20-25 seconds, which continued even after disconnecting the coach and chassis batteries.

I've already replaced the headlight switch thinking that was the culprit, but the same problem persists. No headlights whatsoever when I flip the switch, whether I'm on high or low beam. I'm starting to think it might be the combination switch or maybe a relay with a potential dead short, but I don't want to start throwing parts at this thing without some guidance.

Has anyone dealt with this exact scenario on a late 90s Ford chassis? What should I be checking first? I really need to get this sorted out before my next trip. …more
Fleetwood Bounder Slide Out Reset: Fix Lost Stop Points & Controller Issues
Slideouts Medium 1-2 hours 103 👍

Fleetwood Bounder Slide Out Reset: Fix Lost Stop Points & Controller Issues

Slide out lost its stop points during a power surge at the campground and now it extends way too far and retracts too deep. Fleetwood Bounder forum says I need to reset the controller but the process involves running the slide to its limits and I'm afraid of damaging the mechanism. …more

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Dometic R31 Stove Review + Gas Pressure Test Guide
Appliances Medium 3-4 hours 102 👍

Dometic R31 Stove Review + Gas Pressure Test Guide

Walked into my RV this morning to find my Dometic R31 stove flames randomly dying again - probably a dumb question, but is this normal? I've been looking at the Dometic R31 as a potential replacement, but I want to make sure I'm making the right choice before spending the money.

What's really concerning me is this gas pressure test mentioned in the installation manual. It talks about connecting some kind of gauge to a test port on the regulator, but doesn't specify what type of gauge or what pressure readings I should expect. I'm pretty handy with basic repairs, but gas systems make me nervous and I want to do this safely. Has anyone actually done this test, and is the R31 reliable enough to justify the upgrade from my problematic Wedgewood? …more
RV Emergency Start Switch Not Working: Complete Troubleshooting & Repair Guide
Electrical Medium 30-60 minutes 98 👍

RV Emergency Start Switch Not Working: Complete Troubleshooting & Repair Guide

Every time the temperature hits 85°F or higher, my RV's emergency start switch completely fails — works perfectly in cooler weather, but now my chassis battery is dead while house batteries stay charged. When I press the emergency start button, absolutely nothing happens - no sounds, no response at all.

I'm worried there might be something wrong with the system or that I'm not using it correctly. Should I be hearing some kind of click or sound when I press the button? Could there be blown fuses I need to check? I'm hesitant to keep trying without knowing if I might cause damage to the electrical system. What's the proper troubleshooting process to safely figure out why this emergency start feature isn't connecting my house batteries to help start the engine? …more
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