Results for "generator troubleshooting"

Electrical Medium 2-6 hours 301 👍 4

RV Electrical Problems: 12V & 120V Troubleshooting Guide 2024

Around $500 in parts later — replaced the main breaker, cleaned all connections, checked the transfer switch — my 2007 Holiday Rambler Admiral SE still won't recognize shore power.

I'm pretty sure 110V is making it to the rig since I can measure it, but somewhere between the plug and my appliances, something's not happy. Energy management panel is dark too. What's the logical troubleshooting order here? I keep hearing about transfer switches and breaker panels but honestly don't know where to start without making things worse! …more

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Engine Medium 2-4 hours 216 👍 0

Generac 7.5kW Diesel Generator Repair Guide - RV Troubleshooting

Planning to ignore the weird noises from our Generac 7.5kW diesel generator backfired when my wife pointed out I definitely made things worse during my repair attempt. I have a 2007 Monaco with a Generac 7.5kW diesel generator, and yesterday when I tried starting it, the battery was really weak. I probably held the starter button too long - maybe 15 seconds or so - because it was cranking so slowly and I kept hoping it would catch.

Now when I try to start it, I just get a single click and nothing happens. I'm worried I damaged something by cranking it so long with that weak battery. Should I be looking at the starter solenoid or starter motor? Is there anything I can check myself before I have to take it to a repair shop? I'd really appreciate any guidance on troubleshooting this. …more

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Solar Batteries Medium 2-4 hours 201 👍 0

RC7-GS Inverter AGM Battery Settings: Complete Setup Guide

Replaced my 105Ah AGM battery and now my RC7-GS inverter charger is completely rejecting it like this capacity doesn't exist in its programming.

The charging settings only go from 125Ah up to 1000Ah, with an 'auto' option that supposedly 'learns' my battery but resets every time the low voltage cutoff trips (which feels like cheating, honestly). I'm worried about undercharging or cooking my expensive new AGMs if I pick the wrong setting.

Oh, and while we're talking about things that don't work as advertised - the generator auto-start feature might as well be a myth. Can't even manually start the generator from the RC7 panel. At this point I'm wondering if I should have just stuck with my old setup that actually worked! Anyone know what I'm doing wrong here? …more

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Best RV Batteries

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General Medium 30-60 min 148 👍 1

RV Infotainment System Update Guide: Step-by-Step Safety Instructions

Three weeks ago my 2023 Aspire's infotainment system occasionally wouldn't recognize the update USB, but now it just blinks endlessly without doing anything. Has anyone experienced this specific issue with this RV model's system? I want to understand what might be preventing the update from proceeding. …more

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Electrical Medium 45 minutes 111 👍 0

RV Shore Power Not Working: Complete Troubleshooting Guide

Plugged into shore power at the campground last night and absolutely nothing happened — no lights, no AC, nothing. Breaker on the pedestal looks fine and my neighbor's rig is running perfectly on the same circuit. Starting to wonder if something fried inside the transfer switch. …more

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Engine Medium 2-3 hours 97 👍 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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Engine Medium 2-3 hours 97 👍 0

Onan Code 36 Fix: Complete Troubleshooting Guide for RV Owners

Got my tools spread out and I'm determined to fix this Onan QP 3600 LP generator (Model 3.6KY-26120R) that's throwing code 36 myself — where's the best place to start? The unit starts immediately but shuts down right away. I have plenty of propane and the oil level is fine.

What specifically does code 36 indicate on Onan LP generators? What are the most common causes that would make this code appear? …more

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Engine Hard 4-8 hours 96 👍 0

How to Fix RV Transfer Switch Not Detecting External Generator - Complete Troubleshooting Guide

The automatic transfer switch on my 1999 American Eagle detects shore power and onboard diesel genset fine, but won't recognize my external portable generator — can I fix this for under $50? The generator runs fine and produces power, but the transfer switch doesn't trigger to use it.

What causes this issue and what are my options to get the ATS to work with an external generator? …more

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Electrical Medium 1-2 hours 95 👍 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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Engine Medium Varies by issue 93 👍 0

Onan Generator Fault Codes: Complete Troubleshooting Guide for RV Owners

During my latest camping trip my Onan generator threw a fault code — got my multimeter ready and just need to figure out which diagnostic approach will crack this thing.

I'm seeing 12 or 13 blinks on my generator error display and want to understand what these codes might mean. Are these codes consistent across different Onan models? I'm hoping it's a minor issue and not something requiring a major repair.

Can anyone help me decode what these blinking fault codes typically indicate? …more

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Solar Batteries Medium 2-3 hours 90 👍 0

Fix Renogy Lithium Battery Charge Percent Differences

Nobody has $200+ laying around for a service call — is there a DIY fix for Renogy lithium batteries showing wildly different charge percentages? About a year ago I installed 3 12v Renogy lithium batteries with a Renogy One Core control panel in my RV. Everything worked beautifully at first - the batteries were supposed to communicate with each other to keep all cells balanced, which is critical for lithium battery health.

Recently though, I've noticed the charge percentages are diverging by as much as 10% between batteries. Even worse, my One Core display keeps going blank and won't show charge percentages until I restart it. I've been through the manuals multiple times but can't find anything about troubleshooting charge percent differences or how to check for software updates on either the batteries or the control panel.

I know this communication/balancing issue could lead to serious problems if not addressed. Has anyone dealt with this before? I'm hoping there's a solution that doesn't involve replacing everything after just one year of use. …more

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Engine Medium 2-4 hours 90 👍 0

Onan 4000 Generator Won't Start Without Choke: Code 14 Troubleshooting Guide

Halfway through another camping trip and trying to decide between babying my Onan 4000 with manual choke every startup or finally fixing this Code 14 nightmare. Let me try again:

Just found out that my 2013 Thor Class C's Onan 4000 generator won't cooperate after sitting since March, and I'm dealing with a nightmare. Been getting Code 14 errors and spent half the morning just trying to get it fired up.

The only way I can get it started is by manually messing with what I think is the choke linkage - otherwise it just won't go. Once I shut it off, same story - won't restart unless I physically manipulate that linkage again. Only has 240 hours on it and was serviced about 2 years ago.

I'm pretty sure the carburetor is gummed up from sitting, but what exactly does Code 14 mean? And more importantly, what do I need to clean to get that choke working automatically again? I really need to get this thing running properly before our next trip! …more

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Electrical Hard 2-4 hours 87 👍 0

RV Automatic Transfer Switch Dead - AC Power Troubleshooting & Repair

Every time I flip the breaker, my 21-year-old coach's automatic transfer switch stays completely dead and I'm stuck with zero AC power. My Automated Engineering Corp ATS (model M10040A with M10041 display) is showing no AC on the LED readout even though shore power is definitely good.

I popped the cover off and confirmed power is getting TO the shore power terminals, but nothing's coming OUT to feed the AC system. Even manually pushed the contacts in and they stayed, but still no juice on the output side. Generator won't make it switch over either - it's like the whole transfer function is dead.

This thing has to be repairable right? Or am I looking at replacing the whole ATS unit? Really hoping someone has dealt with this before because losing AC in an RV is no joke! …more

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Engine Medium 2-3 hours 85 👍 0

Why Your RV Generac Diesel Generator Shuts Off After 2 Minutes Under Load: Troubleshooting Guide

Found that ever since those heavy rains last month hit, my 2007 Alfa's Generac 7.5kw diesel generator shuts down exactly 2 minutes after firing up the basement AC.

Just did a full service (oil, filters, the works) so it's not basic maintenance stuff. I can restart it right after it shuts off, but if the AC is still calling for power, it dies immediately again. No error codes or blinking lights to give me a clue.

Is this a fuel delivery issue where it can't keep up with the AC load? Or am I looking at something else entirely? Really hoping someone's dealt with this exact same 2-minute thing before! …more

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Appliances Easy 10 minutes 82 👍 0

Complete Guide to RV Control Panel Lights and Display Meanings

Dashboard has about 15 different indicator lights and half of them just came on after hooking up at a new campground. Some I recognize from the manual but a few aren't even documented. Need to understand what each light and display reading actually means before I start troubleshooting. …more

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