Ac blower cutting out

Inspect wiring connectors at the blower and the control switch. If you find melted pins repair or place both pieces along with the blower itself. The motor is drawing excess current.

The other place to check is the 30 amp breaker going open. Check amp draw or swap the breaker for known good and see if it still trips.

 

On my truck it was just the blower itself going bad

 

Freon has absolutely nothing to do with the blower motor.

The heater uses the same blower motor.

As mentioned. Check circuit breaker. Wiring. Motor connection. Maybe it's a loose connection when you hit a bump. And blower motor.

 

New to this form trying to get some information have a 2019 western star replace the resistor on the AC blower vehicle runs fine for a couple hours cause it before sound like there was a knocking on the dash make sure there is no debris or anything no the vehicle is doing the same thing vehicle AC motor runs freely with no signs of damage could this be Could this be the AC motor

 

I would check the relay for the blower motor. Replace with a good one and Keep it on the low setting. Place your hand on top the blower motor and feel if it is hot. keep it on the low setting. You can do the same for the one upfront or the bunk. Place your hand on top the blower motor and fuel if it is hot . Could be tripping the relay.

 

Question so is making a knocking sound And the resister has been replaced there’s only one blower motor I don’t think there’s another one there’s one on the right hand side underneath the passenger seat the relays located in the fuse box correct? I’m new at working on this type of equipment just trying to figure out a couple of the tricks thank you for the quick response I appreciate it.

 

Mine is currently doing the same thing. If you have a bunk with thence you have to blower motors on that K dub. If not you just have the one at the passenger area. If the K dub it’s like a Pete The front blower relay should be left of your left boot in the Fuse Panal?

 

Tomorrow can I message you a picture of the both relays because once I pull the motor out under the passenger seat all I see is the blower motor and resistor and there’s a fuse box on the top if you realize but I’m not sure about

 

Hey I was with 1/6 in 08 Helmand.