Results for "voltage regulator"

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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Appliances Medium 2-4 hours 112 👍 0

RV Water Heater Not Hot Enough: Fix Lukewarm Water Issues

Looked forward to our two-week cross-country trip starting tomorrow until I discovered my RV water heater that used to produce scalding hot water now barely gets lukewarm. Both the electric and gas functions appear to be working - I can hear the gas igniting and see the electric indicator light - but the water temperature just won't get hot enough for a decent shower.

I've been dealing with this for weeks now and it's driving me crazy. The water gets warm, but nowhere near the hot temperatures I used to get. Is this a common problem with RV water heaters? What are the most likely culprits when you're getting lukewarm water instead of hot? I really need to figure out what's causing this and how to fix it before my next camping trip. …more

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Engine Medium 2-3 hours 104 👍 0

1993 American Eagle Onan Generator Low Voltage Fix: Rectifier Bridge Corrective Steps

Tried everything to fix my 1993 American Eagle's Onan generator low voltage issue — about to buy a $150 rectifier bridge but is it actually the solution? Everything seems to run fine - it starts up without issues and sounds normal - but I'm only getting 12-15 volts output instead of the proper voltage I should be seeing.

I've been doing some research and think it might be related to the rectifier bridge or suppressor components, but I'm not entirely sure. The service manual mentions parts CR21 and RV21, but I'm honestly a bit overwhelmed trying to figure out exactly which replacement parts I need.

Could someone help me understand what's likely causing this low voltage issue and point me toward the correct replacement parts? I'd really appreciate any guidance from those more experienced with Onan generator repairs. …more

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Best RV Leveling Blocks & Jacks

4.6 (9,800 reviews)

Propane Medium 45 minutes 97 👍 0

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

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Engine Medium Varies by issue 94 👍 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 93 👍 0

Stop RV Battery Drain During Storage - Expert Solutions

Planning to store my 2012 Winnebago Tour and there's clear signs of battery drain happening across all six house batteries and two chassis batteries. I'm religious about flipping both the chassis and house disconnect switches before putting her away for storage. Still go out monthly to fire up the generator and top off the batteries.

But here's the thing that's driving me nuts - even with those disconnect switches flipped, my batteries are still going dead! Sometimes I can't even get the engine started and have to hook up a trickle charger just to get things going again. What's the deal? I thought those disconnect switches were supposed to prevent this whole mess. Am I missing something obvious here, or is there more going on that I need to tackle? …more

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Electrical Easy 1 hour 92 👍 0

Best Group 31 AGM Cranking Batteries for Cummins ISB 6.7 Diesel RV

I opened the hood this morning and spotted my 2017 Cummins 6.7 ISB barely cranking over with those AGM batteries that were fine yesterday. I'm pretty sure I need Group 31s but wondering if I should go AGM or stick with regular flooded batteries?

I keep hearing good things about Duracell and NAPA batteries - anyone have experience with these brands on a diesel setup? Also wondering what CCA rating I should be looking for and if I really need to replace both batteries at the same time (one's still cranking okay but the other's getting weak).

Just want something reliable that can handle those cold morning starts without leaving me stranded! …more

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Engine Medium 2-3 hours 86 👍 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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Propane Easy 30 minutes 85 👍 0

How to Fix RV Propane Detector False Alarms: Complete Troubleshooting

Every YouTube tutorial I followed to fix my RV's LP gas detector false alarms only made it beep more frequently at night. The detector appears to be responding to non-gas triggers, but I need to systematically determine whether this indicates sensor degradation, environmental interference, or if there's an actual safety concern I'm missing. What are the primary causes of false positive readings in RV propane detection systems, and what diagnostic steps should I follow to differentiate between legitimate equipment failure versus actual gas leak detection? …more

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Propane Medium 4 hours 84 👍 0

Suburban SF-30 Furnace Replacement: Complete Unit vs Core Guide for RV Owners

Somewhere between our freezing mountain trip last month and now, my 2002 Born Free's SF-30 furnace died completely and I'm torn between replacing the core versus the whole unit. I believe it's a Suburban SF-30 model. I've been doing some research and see there are two options - I can buy a complete furnace replacement or just get a replacement core that supposedly slides into the existing SF-30 housing for about half the price.

I'm honestly not sure which route to go. The cost savings on the core is tempting, but I don't want to make the wrong choice and end up with more problems. As someone who's still learning about RV maintenance, would you recommend getting the complete unit or would the core replacement work just as well? Any guidance would be really appreciated! …more

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Electrical Medium 4-6 hours for complete installation 81 👍 0

F53 Triton V10 High Output Alternator Upgrade - 250A Install

Before I drop $800 on having a shop install a 250A high output alternator on my mid-2000s F53 Triton V10, wondering if this is something I can DIY without breaking anything. I need to upgrade from the stock alternator to handle a large inverter battery bank, and I'm looking at high-output units in the 250A range.

I found this Tucson alternator that puts out 190A at idle for under $500, but I'm worried about whether the existing wiring and belt system can handle it safely. Could I damage the engine or electrical system if I just swap it in? What upgrades would I absolutely need to do this safely?

I've worked with high-output alternators on boats before, but RV chassis systems seem different and I don't want to create a fire hazard or burn out expensive components. Has anyone successfully done this upgrade without major issues? …more

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4.5 (7,600 reviews)

Engine Hard 2-4 hours 80 👍 0

Onan QG5500 Generator Power Drop: Complete Troubleshooting Guide & Fixes for RV Owners

Wondering why my Onan QG5500 is eating through fuel like crazy but barely putting out enough power to run my AC anymore? My Onan QG5500 generator was working great earlier today - had about 1500 watts running with the AC on a hot afternoon. I shut it down for about an hour, and when I fired it back up, it's only putting out around 400 watts now.

I checked the obvious stuff like circuit breakers and they all look fine. The generator is still running, but something is clearly wrong with the power output. I'm not sure what could cause such a sudden drop or even where I should start troubleshooting. Could this be an electrical issue? Any ideas on what might have failed and how I can figure out what's wrong? …more

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Electrical Hard Professional installation 78 👍 0

48V RV Electrical Systems: Complete Guide to Modern RV Power Upgrades and Efficiency

Tried upgrading my RV's electrical system but I'm standing in the supply store staring at 12V versus 48V components with zero clue what I actually need. The Bluetti RV5 caught my eye as an all-in-one solution that might make the jump easier.

But honestly, I'm still on the fence. What are the real benefits of going 48V? Is it actually that much better than sticking with 12V lithium? And are there any gotchas I should know about, especially with solar integration and getting everything certified for RV use? …more

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Solar Batteries Medium 2-3 hours 77 👍 0

DC-DC Charger for Lithium RV Battery: Protect Your Alternator

Despite everyone saying I need a DC-DC charger for my lithium RV batteries, I'm skeptical about dropping $400 — will it actually protect my alternator? Just got a shiny new 2026 F250 (after my poor F150 basically begged for mercy when I hooked up my 2600RB) and had a 230ah lithium battery installed in the trailer. Now I'm reading horror stories about truck alternators and lithium batteries having some kind of electrical death match that could fry my alternator or damage the battery.

I keep seeing mentions of DC-DC chargers but honestly have no idea if I actually need one or if this is just RV paranoia at its finest. The trailer has solar and I've only got a 12V fridge drawing power when towing, so it's not like I'm running a mobile data center back there. Can I just use my truck's existing charge line to the trailer, or am I about to become another cautionary tale about expensive electrical mistakes? …more

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Solar Batteries Medium 2-4 hours 77 👍 0

How to Fix Parasitic Battery Drain in 2006 Damon Challenger RV: Complete Troubleshooting Guide

I found three different "experts" telling me three different causes for my 2006 Damon Challenger's parasitic battery drain - neighbor blames the converter, dealer says bad fuse, YouTube points to inverter. I've traced it to the instrument cluster fuse, and Thor doesn't have schematics for this model due to its age.

I'm not even sure if it's actually the instrument cluster itself or something connected to it - could it be the transmission temp sensor, engine temp sensor, or other wiring? I really don't want to damage anything expensive or create a safety hazard. What's the safest way to diagnose and fix this without causing more problems? I'd feel much better with a step-by-step approach that won't leave me stranded or worse. …more

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