Crossroads Redwood – AC Capacitor & Fan Motor Service

When your rig is your permanent address, calling a dealer and waiting three weeks for a service appointment isn’t an option. You fix it yourself, you fix it now, and you fix it right — because your home doesn’t get to sit broken on a lift. On a Crossroads Redwood, the rooftop AC unit is one of the hardest-working systems in the coach, and when the run capacitor fails or the fan motor starts dragging, you’ll know it fast — a loud hum with no cooling, a sluggish fan that won’t spin up, or a compressor that trips the breaker before it ever gets going. Left alone, a weak capacitor will burn out a perfectly good motor, turning a twenty-dollar fix into a four-hundred-dollar one. This guide walks you through exactly how to diagnose which component has failed, what to replace, and how to do it safely — written by someone who has done this repair roadside in triple-digit heat with nothing but a basic toolkit and parts ordered overnight.

The Capacitor That Stops the “Dead AC” Panic on a Redwood

A failed run capacitor is the most common reason your Crossroads Redwood AC compressor hums loudly but won’t start—and it’s also the fastest fix if you catch it before the motor burns out. This dual-run capacitor handles both the compressor and fan motor, so when it goes, your cooling dies completely.

What works

• Compressor spins up immediately after install—no more humming-without-cooling limbo.
• Fan motor runs at full speed again instead of that draggy half-speed that never cools the coach down.
• Drop-in replacement on Dometic and Coleman-Mach units—no rewiring, no adapter nonsense, clips straight onto the terminals.

What doesn’t

• If your AC unit is a 2010 or older Redwood, verify the MFD (microfarad) rating before ordering—Coleman-Mach specs drifted across model years and the wrong uF will either strain the compressor or fail to start it.
• Amazon shipping can stretch to 5–7 days on this part; if you’re stuck in 110-degree heat, a local HVAC supply house (not RV dealers) will have it in stock same-day for about the same price.

I swapped one on a customer’s Redwood in a Walmart parking lot in Arizona and held my breath for the first 30 seconds—silence instead of the hum made me think I’d installed a bad unit until the compressor finally clicked in. Grab the RV AC dual run capacitor (Dometic/Coleman-Mach) and confirm your unit’s uF rating before checkout.

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