Drew Callahan · April 12, 2026
Most RV owners don’t realize that a dead AC capacitor on your Nexus Triumph doesn’t mean the whole system is shot — but they treat it like it is, either calling a dealer for a month-long wait or abandoning the rig to the heat. The truth is uglier: ignore a bad capacitor and your compressor … Read more
Drew Callahan · April 11, 2026
Mid-July, somewhere outside Sedona. I’d been running the Gulf Stream BT Cruiser for just over a week, and the temperature on the thermometer had stopped climbing at ninety-eight degrees. Two in the afternoon, shade optional, and that rooftop AC unit went completely silent — no compressor drone, no fan blade movement, nothing but dead air … Read more
Drew Callahan · March 15, 2026
Skip this repair and your Tiffin Allegro Bus AC won’t just underperform—it’ll trap you in a rig that either won’t cool at all or keeps nuking your breaker every time you fire it up. A weakening capacitor or dragging fan motor is the kind of failure that sneaks up: one week the AC is sluggish … Read more
Drew Callahan · February 11, 2026
RV Air Conditioner Service & Replacement Guide (Dometic / Coleman-Mach) “Drew, my AC just died completely—it was cooling fine yesterday, and now it won’t even turn on. I’m not hearing the compressor hum or anything. Is the whole unit shot?” That’s the call I got from a friend boondocking near Sedona last month, and it’s … Read more
Drew Callahan · January 5, 2026
Cooling System Service for AMERICAN COACH AMERICAN EAGLE Most RV owners think cooling system maintenance is something that happens automatically—like the oil just stays clean and the radiator just keeps working year after year without attention. That assumption costs people thousands when a Cummins diesel suddenly runs hot on a July afternoon somewhere between Flagstaff … Read more
Drew Callahan · December 31, 2025
Cooling System Service for THOR PALAZZO I’ve got the radiator cap off and I’m staring down into the PALAZZO’s cooling passages, and what I see tells me everything about why full-timers blow engines on these rigs. The coolant in there is the color of weak tea—not the bright red or orange it should be—and when … Read more
Drew Callahan · December 28, 2025
Cooling System Service for ENTEGRA CORNERSTONE I’m bent over the radiator shroud with a coolant hydrometer in one hand, watching the fluid level drop as I tip it—the antifreeze is murky orange instead of the bright red it should be, and that tells me everything I need to know. The previous owner either ignored the … Read more
