Results for "coleman-mach"

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

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

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

Looked at our 2022 Winnebago Ekko's dual 320 Amp Hour Lithionics batteries and 450-watt solar setup after my wife mentioned it wasn't optimized for boondocking, and now I'm completely obsessing over our power management. Planning extended boondocking trips to music festivals and remote locations.

I'm particularly interested in understanding how feasible it is to run the roof AC while driving using solar panels and batteries, and ensuring enough power remains when I arrive at my destination. What's the best strategy for maximizing battery life and solar charging efficiency during extended off-grid stays? …more

Our 2013 Phaeton's Coleman AC remote sensor is throwing wrong resistance readings and I've got my multimeter ready to fix this myself — just need the correct values to check against. The remote temp sensor in my living area started reading 99°F constantly, so I checked the resistance and found it was only 9kohms while the working sensor reads 90kohms at 82°F.

I ordered the replacement part 8330-3101 (which supposedly replaces my old 8330-309), but I'm worried because the new sensor ALSO measures 9kohms right out of the package - exactly like my "bad" one. I've tested both thermostats and they work fine when I swap the sensor leads.

I'm hesitant to install this new sensor since the resistance seems wrong. Could I damage my thermostat or AC system if there's a compatibility issue? Should I be measuring resistance differently, or is there a wiring problem I'm missing? I don't want to make things worse by installing the wrong part. …more

Thermostat screen is completely dead — no display, no backlight, nothing. Furnace won't kick on and it's getting down to freezing tonight. Checked the fuse panel and everything looks good. Starting to think the thermostat wiring itself has a break somewhere in the wall. …more

Pulled the same wire swap trick that fixed my old analog RV thermostat's voltage drop, but this new Coleman 9420-381 digital replacement is behaving completely different. Everything worked great all summer with the AC, but now that heating season is here, I'm having major problems.

The furnace keeps short-cycling terribly - the burner fires for maybe 3-20 seconds, shuts off, then the whole cycle repeats. I've already ruled out the furnace itself (replaced the board, checked sail switch and limit switch). Through testing, I discovered the furnace is steady at 13.4V, but when the thermostat calls for heat, the voltage it sends back slowly drops from 13V down to around 10V, then the burner shuts down.

If I short the two furnace wires directly, the furnace runs perfectly. I suspect the thermostat's solid state components are failing. I'm wondering:
1 Has anyone else seen this issue?
2 Are others using this 9420-381 thermostat without problems?

I really like the digital features, but need a reliable solution. …more

Around 6 AM I walked out to my fifth wheel and spotted my Advent air conditioner running but barely pushing any cool air through the vents. I replaced my old Coleman AC with an Advent, mainly due to price, but I'm not getting good cooling during the heat of the day. I've found that opening the slide vents on the ceiling cover helps a bit.

I'm considering using a KoolRV adapter like I had with my previous Coleman, but no adapter currently exists for the Advent. I've noticed the cold air discharge opening is located in the corner instead of the center, which I think is causing air turbulence and restricting duct airflow.

My main concern is whether restricting the airflow too much could cause problems like freezing up or other damage to the AC system. I've also seen that installing these adapters involves removing some kind of dividing wall inside the unit, but I don't understand why that's necessary.

Could someone explain if there are risks to restricting airflow and why that dividing wall needs to be removed? I want to make sure I understand what I'm getting into before I try any modifications. Right now, it's starting to cool down here in the Everglades, but I still want to improve my cooling performance. Thanks for any guidance! …more

Looked everywhere for answers but my 2019 Forest River with an Airxcel furnace won't kick on when I switch the thermostat to heat mode. When I turn the thermostat to heat mode and adjust the temperature setting, absolutely nothing happens - no sounds, no fan activation, no ignition attempts, nothing at all. The unit was working perfectly fine last month during our camping trip, but now it's completely dead when I try to activate it through the thermostat.

I've tried adjusting the temperature settings both higher and lower, checked that the thermostat is properly set to heat mode rather than cool or off, and even tried turning the system off and back on again. The thermostat display appears to be functioning normally and shows the temperature settings I'm selecting, but the furnace itself shows no signs of life whatsoever. I'm wondering if this could be an electrical issue, a propane supply problem, or something with the connections between the thermostat and the furnace unit itself. …more