Results for "refrigerant"

Ac Refrigeration Easy 30 minutes 131 👍 0

RV AC Freezing Up? Fix Ice on Coils in 5 Steps

Turned on my RV's AC as a total newbie and watched it run perfectly for an hour before becoming a frozen disaster that won't cool. I can literally see ice building up on the coils, and then it's game over until everything thaws out.

This has happened a few times now and I'm getting tired of sitting in a hot RV waiting for the thing to defrost. What actually causes AC units to freeze up like this? And more importantly, how do I stop it from happening again? I'm guessing it's something simple I'm missing, but I'd rather fix it right than keep dealing with this cycle. …more

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Ac Refrigeration Medium 2-3 hours 128 👍 0

Dometic RV AC Not Cooling? 5 Common Fixes for Air Conditioner Troubleshooting Guide

Walked out to my RV this morning trying to decide between calling a repair tech or troubleshooting my Dometic Brisk Air rooftop AC myself since it's showing weird operational issues. The compressor engages and fan motor operates normally, but the unit fails to produce cold air output. Temperature differential across the evaporator coil is minimal.

Unit functioned properly through previous cooling season with no apparent issues. Current symptoms include normal airflow volume but inadequate cooling capacity. What systematic diagnostic procedure should I follow to identify the root cause? Looking for a methodical troubleshooting sequence that addresses the most probable failure points in order of likelihood. …more

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Ac Refrigeration Medium 2-3 hours for diagnosis, professional repair likely needed 122 👍 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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Ac Refrigeration Medium 2-3 hours 114 👍 0

Ford V10 RV Chassis A/C Cycling On and Off at High RPM - Complete Fix

Before highway driving yesterday, my gauge showed 250 PSI on the high side, but every Ford V10 manual says my 2019 Georgetown XL should max at 200 PSI. After completing full refrigerant system service including line replacement, receiver-drier, and expansion valve replacement, followed by proper evacuation and R134a charge to specification (920g), the system operates normally at idle and low RPM conditions.

However, above 2800 RPM during highway driving, the compressor cycles on and off repeatedly. System pressures appear normal during stationary testing. Is this cycling behavior a designed protective feature of the Ford V10 PCM during high load conditions, or does this indicate an underlying issue with head pressure, airflow, or refrigerant charge that requires further diagnosis? …more

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Ac Refrigeration Medium 30 minutes 112 👍 0

RV Refrigerator Ammonia Smell: Leak Repair & Safety Guide

Last spring when I opened up my RV for the first camping trip, that same overwhelming ammonia stench hit me the moment I cracked open the refrigerator door. It seems to be getting worse and I can smell it throughout the coach now. I'm scared this might be some kind of refrigerant leak but I'm not sure.

Is it safe to keep using the refrigerator? Should I be concerned about health risks from breathing this in? I don't want to make the situation worse or put my family in danger. What should I do immediately to stay safe? …more

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Engine Easy N/A - finding shop 110 👍 0

Ford F53 V10 RV Chassis Repair Shops Near Raleigh NC - Engine Service

My Ford F53 V10 is showing misfire codes P0301 and P0303, but my compression test reads 180 PSI when everything says it should be around 150 PSI. I'm located near Raleigh, North Carolina, and I need to get some mechanical work done - specifically repairs to the exhaust manifold bolts and air conditioning system work.

The problem I'm running into is that when I call Ford dealerships in the area, they keep telling me they don't work on motorhomes, even though it's a Ford chassis. This seems crazy to me since the engine and drivetrain components should be the same as other Ford vehicles. The exhaust manifold issue and AC problems are fairly standard automotive repairs, so I don't understand why the Ford connection isn't helping me here.

What type of repair facilities should I be looking for instead? Are there specific shops or service centers near Raleigh that specialize in F53 chassis work, or should I be approaching this differently? I just need somewhere that can competently handle these mechanical repairs on my motorhome without the runaround. …more

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Ac Refrigeration Medium 45 minutes 108 👍 0

RV AC Making Loud Humming Noise? Fix Compressor Not Starting

Somewhere above my head, there's this loud, relentless humming grinding through the RV whenever I flip on the rooftop AC — compressor won't start but the fan spins fine.

I've been dealing with this for days now and it's driving me crazy - especially with the heat we've been having! The humming is so loud that I'm worried something might be seriously damaged. I really hope this is something I can fix myself rather than having to call out a repair tech. What could be causing a compressor to hum loudly but not start up? …more

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Ac Refrigeration Hard 2-4 hours 103 👍 0

How to Add Coleman Mach Heat Strips to RV AC Unit - Heat-Ready Control Box Installation Guide

Tried running my RV's electric heating this winter but it's eating through power way faster than it should, so I'm looking at adding Coleman Mach heat strips. I have a SportTrek Touring 272VRK with two AC units (Coleman-Mach 13.5k BTU and 15k BTU, models 48203-069 and 48204-069) with Cool-Only Control Boxes (model 8330-752) and I'm considering adding Coleman Mach electric heat strips, but I'm worried about a few things.

First, I'm concerned about whether my current AC units are compatible with heat strips - specifically the Coleman Mach 37203-4551 Electric Heat Kit/Strip. I want to confirm this will work with my existing 8330-752 control boxes. Second, I'm worried about the electrical load - I keep reading about heat strips drawing a lot of power and I'm scared of overloading my system or tripping breakers.

Most importantly, I absolutely do NOT want to lose the ability to use my existing Suburban SF-30FQ 30,000 BTU propane furnace - it's my primary heat source and I need that independence. I currently have 9420a381 digital thermostats controlling these systems, and I want to ensure I can maintain my current setup.

Is there a way to safely add Coleman Mach heat strips using some kind of Heat-Ready Control Box without compromising my furnace operation? I just want some reassurance that this can be done properly without creating problems. …more

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Plumbing Medium 1-2 hours 102 👍 0

RV Heater Lines Reversed: How to Diagnose and Fix Hot Dashboard Air

Dashboard vents are blowing hot air even with the heater off and the AC running. Drove three hours in 95-degree heat with hot air hitting my face the whole time. Mechanic says the heater hose lines might be reversed from a previous repair job. …more

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Engine Medium 2-3 hours 98 👍 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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Ac Refrigeration Medium 2-3 hours 93 👍 0

Everchill 12V Fridge Not Cooling But Freezer Works - Fix

The freezer in my 2024 Jayco Eagle's Everchill 12V fridge works perfectly, but I'm tackling the non-cooling fridge section this Saturday — what should I check first? The Everchill 12V four-door refrigerator/freezer unit has developed what seems to be a common problem - the freezer compartment is working perfectly and maintaining proper temperatures, but the refrigerator section has completely stopped cooling.

I've verified that the internal fan is running normally, so it's not a power issue. The unit gets power, the controls light up, and I can hear it cycling on and off as expected. However, despite the fan running and the freezer working fine, the fridge compartment just won't get cold anymore. This seems like it happened suddenly rather than gradually losing cooling capacity.

I've read online that this is a known issue with these Everchill units, but I'm not sure what specifically causes the freezer to work while the fridge fails. What are the most likely culprits when you have this exact symptom pattern, and what should I check first to diagnose whether it's something I can fix myself or if I need to call for warranty service? …more

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Ac Refrigeration Easy 30 minutes 92 👍 0

RV Whirlpool Refrigerator Cycling Every 30 Minutes: Is It Normal? [202

Looked everywhere for answers on my Whirlpool residential refrigerator cycling every 30 minutes—my neighbor says it's normal, RV dealer says it's broken, YouTube says something else entirely. The ambient temperature here is around 65°F, and I have both the fridge and freezer set to the 3rd snowflake setting.

I haven't timed it exactly with a stopwatch, but I keep noticing it kicking on again after what feels like a short time. I'm concerned this frequent cycling might be a sign of a problem or could lead to premature failure. I try to keep the vents clean when I can access them. Should I be worried about this 30-minute cycle pattern, or is this within normal range for an RV refrigerator in these conditions? …more

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Ac Refrigeration Medium 2-4 hours 87 👍 0

Norcold RV Refrigerator Not Cooling Properly: Complete Temperature Troubleshooting Guide

Before the summer heat kicks in, my 20-year-old Norcold absorption refrigerator only stops cooling when it's above 85 degrees outside — works perfectly fine the rest of the time. I've been tracking its performance with a recording thermometer for 5 days.

Here's what I've observed:
- Cooldown takes about 4 hours
- Freezer varies between 0 and 5 degrees
- Every ~24 hours the unit shuts off to defrost, heating to about 20 degrees
- Time to warm from 5 to 20 degrees is around 1.5 hours

I changed the temperature setting from 7 to 5 on day 3, which seemed to affect the temperature. The refrigerator section is hovering between 30 and 35 degrees during this time.

Is this temperature pattern normal for an absorption fridge, or does this sound like something that needs to be fixed? I'd really appreciate some guidance from more experienced RVers about what these temperatures might indicate. …more

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Plumbing Medium 45 minutes 87 👍 0

How to Clean Clogged Duo-Therm 630515 AC Drain Pan & Lines - Complete RV Maintenance Guide

About five YouTube tutorials later, my Duo-Therm 630515 drain pan is somehow backing up worse than when I started this whole mess. The condensate seems to be backing up and I can see water where it shouldn't be, but only a little bit is coming out the normal drain line.

I'm worried about making things worse by trying to fix it myself. Is there a safe way to clear these blockages without having to tear into the unit or damage any seals? I have access to compressed air and a shop vacuum if those would help.

Any guidance would be really appreciated - I don't want to create a bigger problem by doing this wrong! …more

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Ac Refrigeration Easy 30-45 minutes 86 👍 0

How to Stop RV Refrigerator Shelves from Sliding While Driving - Easy

My RV dealer insists I need to replace my entire 2025 Cedar Creek 360RL refrigerator just because the shelves slide during travel, but that seems like overkill. Even with an empty fridge, the glass shelves keep moving forward and end up pressed against the doors whenever we're driving. I'm concerned this could lead to broken glass or damage to the door seals.

I'm hesitant to try any fixes that might make the shelves permanently stuck or difficult to remove for cleaning. What are some safe, proven methods to secure refrigerator shelves during travel while still allowing easy removal when needed? I don't want to make the problem worse or void any warranties on this new RV. …more

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