Dometic Brisk Air II RV A/C Fan Motor Kit 3315332.005

When the fan motor gives out on a Dometic Brisk Air II, the whole air conditioner stops doing its job. No air moves across the coils, the compressor runs hot, and the cabin stays warm no matter what the thermostat says. This is the genuine Dometic 3315332.005 motor kit, the OEM part that spins the fan and blower wheel inside Brisk Air II rooftop units. It's the same motor the factory installed, so you're fixing the air conditioner you already trust instead of tearing off the roof and starting over.

This kit fits the Brisk Air II models B57915, B59516, B59146, B59186 and B59196. If you're not sure which unit you've got, pull the model number off the label on the air conditioner itself. It's usually printed on the shroud up top, or on a tag under the interior ceiling assembly. Match that number to the list and you're good. Don't go by the number stamped on the old motor, since replacement motors carry their own codes. Go by the AC model every time.

How do you know the motor's the problem? A few tells. The fan won't spin at all but you hear a hum when the unit calls for cooling. Or it turns slow and weak on every speed. Or there's a grinding, rattling bearing noise up on the roof that gets worse as it heats up in the sun. Sometimes the motor draws enough that it trips the unit off after a few minutes of running. Any one of those, and the motor is usually the culprit, not the compressor.

Because this is the OEM Dometic assembly, it's wired and mounted to match. It runs on 115V AC off the same leads the original used, and it gives you the same 3-speed operation, so your thermostat's low, medium and high fan settings behave the way they did when the rig rolled off the lot. No splicing in a mismatched motor. No fabricating a bracket. No hoping the shaft lines up with the blower wheel. The kit is built for the spot it's going into.

Most handy RV owners can tackle this one in an afternoon, and any RV service tech will knock it out fast. The job means getting up on the roof, pulling the shroud, and swapping the motor with the blower wheel and fan blade transferred over to the new shaft. Before you touch anything, shut the air conditioner off at the thermostat and disconnect shore power and the generator. That rooftop unit runs on 115 volts and you don't want it live while your hands are in there. Snap a photo of the wiring before you unplug the leads so reassembly is simple, and set the fan blade back at the same depth so it doesn't rub the shroud.

One honest note on what this kit is and isn't. It's the fan motor. If your Brisk Air II won't cool at all but the fan spins just fine, your trouble is more likely the compressor, the run capacitor, or the control board, and this motor won't fix that. But if weak or dead airflow is the symptom, this is the part that brings it back. Replacing the motor on a unit that's otherwise healthy costs a fraction of a whole new rooftop air conditioner, and it saves you the resealing and re-caulking that a full unit swap always drags in.

We keep the genuine Dometic part on the shelf because the Brisk Air II is one of the most common rooftop units out there, riding on everything from travel trailers to fifth wheels to Class C coaches. When the fan quits in the middle of a July trip, you want the right motor shipping today, not a maybe-fits gamble from some marketplace listing. That's exactly what this is.