Results for "fault-codes"

Engine Medium 2-6 hours 773 👍 1

Onan 5500 Generator Problems: Complete Repair Guide

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

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Electrical Medium 30-90 min 340 👍 0

No 12 Volt Power in RV: Complete Troubleshooting Guide

Turned the key and nothing works on 12 volt — no lights, no water pump, no slides. Batteries show 12.6 volts on the multimeter so they're fully charged. House batteries seem fine but zero power is getting to any of the 12V circuits inside the coach. …more

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Electrical Medium 1-2 hours 291 👍 0

Why Your RV Trips GFCI at Home But Not Campground: Complete Troubleshooting Guide

Turned on my motorhome at 11 PM and it tripped the home GFCI again — works perfectly at campgrounds but I need this solved before departure.

I've tried different adapters, rewired a busted GFCI inside the rig, even turned off ALL the breakers including the main panel breaker. Still trips my house GFCI every time, whether it's the garage, side of house, or front outlets. What gives? Why would it work everywhere else but trip GFCIs at home? There's gotta be something specific causing this, right? …more

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Best RV Water Heaters

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Propane Medium 30-60 minutes 267 👍 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

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Ac Refrigeration Medium 2-3 hours for diagnosis, professional repair likely needed 236 👍 0

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

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Electrical Medium 30 minutes to 2 hours 215 👍 0

RV Red Fault Light No Power: How to Fix Partial Electrical Outage

Tried rewiring my RV's electrical system yesterday but something still doesn't seem right — red fault light is on and half my outlets have no power. My Class A has this red fault light glaring at me from the power panel, but it's not a total blackout situation. AC is running fine (thank goodness!), but my fridge, microwave, and some outlets decided to take a vacation.

I already tried the usual suspects - reset every GFCI I could find inside and messed with the main power cord panel outside where shore power comes in. Still got that annoying red light mocking me.

This partial power thing is driving me nuts. What should I be checking next to get everything back online? …more

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Electrical Medium 1 hour to verify/install 215 👍 0

Can You Use a 240V EV Charger Outlet for RV 30 Amp Shore Power?

Got a 240V outlet in my garage for the EV charger and wondering if I can wire up an adapter to plug my 30 amp RV into it instead of running an extension cord from the dryer outlet. Seems like the voltage and amperage should work but don't want to fry my converter. …more

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Engine Medium 2-3 hours 209 👍 0

Fleetwood Discovery Generator Won't Start: Battery & Electrical Fixes Guide

Since the manual says to check the fuel shutoff solenoid first on my 1999 Fleetwood Discovery 37V diesel pusher generator, why am I getting power there while the battery connections are completely corroded? The generator absolutely refuses to start unless I run the main Cummins engine for several minutes first, and I've already tried using the boost battery switch which seems to do nothing.

I have brand new batteries - two 12V for the chassis and four 6V house batteries properly wired. Everything else works fine, but this generator issue has me concerned. I want to understand: 1) Why won't the gen set start from its batteries without the main engine running first? 2) Which battery bank does the gen set actually use - chassis, house, or a separate gen set battery?

I'm 80 years old and hesitant to crawl under the coach to trace the gen set 12-volt cable. Can someone help me understand what might be happening with my generator's electrical system? …more

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Slideouts Medium 45 minutes 205 👍 0

HWH 325 Levelers Shutting Off When Extended? Quick Fix Guide

This might sound like a warranty question, but before I start tearing into my HWH 325 series levelers that shut off when extended — they power up just fine - all lights, sounds normal, no drama. But the SECOND I press any of the extend buttons, they shut off completely like I just insulted their mother. I'm trying to level out while changing my motorhome's oil (because apparently I can't even do basic maintenance without my house deciding to be crooked), and these levelers are having none of it. Battery shows good on the panel, but I'm wondering if there's some kind of voltage issue happening when they try to actually work? Or maybe loose connections somewhere? Anyone dealt with this particular brand of RV stubbornness before? …more

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Electrical Medium 2-3 hours 204 👍 0

Winnebago EKKO Shore Power & Water Leak Fix - Expert Guide

After discovering shore power and water leak issues in my brand new 2025 Winnebago EKKO, I'm trying to decide between returning it or tackling the repairs myself. First, when I connect to shore power, the batteries aren't charging at all and there's an 'OPEN GRD' warning on the transfer switch. The shore power connection shows a red G light with green L and N lights. Second, there's water dripping right above the driver's seat coming from somewhere in the plastic overhead area between the left storage compartment and the TV mount. We have a cross-country family trip planned next month and I need to know if it's safe to travel with these problems. The battery issue is preventing me from running the generator when the coach battery gets too low. Is this something I can fix myself or do I need to head straight back to the dealer? …more

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Electrical Medium 1-2 hours for diagnosis 189 👍 0

HWH Levelers Flashing Blue Light: Complete Battery Reset & Troubleshooting Guide

Opened three different browser tabs trying to figure out why my HWH levelers are flashing blue — neighbor says dead batteries, dealer claims sensor issue, YouTube insists wiring problem. The blue light keeps flashing and the jacks won't respond at all - they won't go up or down. The only thing that seems to work is disconnecting the house battery for about 15 minutes until all the panel lights go dark, then reconnecting it.

I'm worried this might be a sign of something serious going wrong with the electrical system or the levelers themselves. Could this indicate low voltage issues or bad connections that might be unsafe? I really don't want to damage anything expensive or put my family at risk. What should I be checking, and is this something I need to call HWH about immediately? …more

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Engine Medium 2-3 hours 189 👍 0

Onan 5500 Generator Shuts Down Under Load: Troubleshooting Guide

Onan 5500 runs perfectly at idle but kills itself within 30 seconds of turning on the AC. Been fine for years and suddenly can't handle any real load. Fuel filter is new, oil is fresh, and it starts right up every time — just dies the moment I ask it to actually work. …more

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General Easy 15 minutes to verify 183 👍 0

Southwire EMS Built-in vs External Surge Protector: Do You Need Both?

Opened my 2022 Holiday Rambler 38N DP and discovered it's eating through surge protectors way faster than normal, despite having the built-in Southwire system. Dealer says I might not need an external surge protector like a Watchdog since it's already built in.

Does a built-in Southwire surge guard provide the same protection as a standalone EMS unit? Should I still install an external surge protector or is the built-in system sufficient? Want to make sure I have proper protection without buying unnecessary equipment. …more

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Electrical Medium 2-3 hours 176 👍 0

Braun RV Lift Stops Halfway & Loses Power: Troubleshooting Guide

Starting to think my Braun RV lift is eating through battery power way faster than it should, dying completely halfway up every single time. We have a Braun lift on our converted shuttle bus, and I'm running into a frustrating problem that has me stumped.

The lift works fine going up and it folds/unfolds without any issues. But when I try to lower it, it consistently stops about halfway down and the control button completely loses power. The only way I can get it working again is to manually raise or lower it using the hydraulic manual override, then the power comes back.

I'm wondering what typically causes this kind of behavior? Is this likely an electrical problem, something with the hydraulic system, or maybe a sensor issue? I'd appreciate any troubleshooting tips since I'm not sure where to start looking for the problem. …more

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Solar Batteries Medium 30-45 minutes for testing 175 👍 0

AGM Battery Deep Discharge Damage - East Penn 6V Recovery

Looked inside my battery compartment and immediately hit with that acrid sulfur smell - my East Penn 6V AGM batteries are completely dead after a deep discharge. Last July, I installed six East Penn 6V house batteries and set the Magnum remote to AGM type. Left my coach at a shop for 2.5 weeks and came back to completely dead batteries - we're talking 8V dead, folks. Nothing worked: steps, lights, even my fancy electric shades decided to take a permanent nap. Chassis batteries were still okay.

After plugging in at home, the Magnum charger went through its whole song and dance - bulk charging at 100A, then eventually settled into float at 13.2V. When I unplugged and fired up the generator briefly, voltage dropped from 13.0V to 12.7V.

So here's my million-dollar question: did my deep discharge adventure turn these batteries into expensive paperweights, or do these voltage readings suggest they might have survived my negligence? I'm cautiously optimistic but honestly have no idea what signs indicate whether AGM batteries bounced back from the dead or are just pretending to be okay! …more

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