Drew Callahan

I’m standing on the ladder with my head tilted up into the rooftop AC when I hear it—that thin, almost apologetic hum. The compressor’s running fine, pushing refrigerant through the lines, but the fan isn’t spinning the way it should. It’s moving, sure, but lazily, like it’s fighting through molasses. Twenty seconds in, maybe thirty, … Read more

Most American Coach American Eagle owners assume their Suburban SF-series furnace will simply work when they turn up the thermostat — that it’s built tough enough to soldier through season after season without complaint. That assumption costs people sleep on cold nights. A furnace igniter that fails doesn’t fail gently; it fails completely, and suddenly … Read more

I’ve got my work setup spread across a concrete pad behind bay two at the storage facility where I keep the current rig — socket set hanging on the pegboard, laptop propped on an old toolbox, and a parts catalog open whenever I’m troubleshooting a system that’s gone sideways. Pulled a blackened Suburban igniter electrode … Read more

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

I’ve got a capacitor sitting on my bench right now—pulled it off a Dutch Star that rolled through last week. The casing is bulged on one side, and if you look at the solder joints where it connects to the fan motor circuit board, they’re cracked and discolored from heat cycling. That’s what a dead … Read more

“Drew, my Allegro Bus furnace clicks three or four times before it finally catches, and half the time it just blows cold air. Is this an igniter thing, or am I looking at something bigger?” I get that question more than I’d expect, and the answer’s usually yes to both. The Tiffin Allegro Bus furnace … Read more

Most Newmar Dutch Star owners don’t realize their furnace’s igniter and control board are on borrowed time until the moment they fail—usually at night, usually in cold weather, usually when the nearest service bay is three hours away. The blower will spin and push air, but no spark, no flame, no heat. I’ve watched owners … Read more