International LT Blower Issues

The tripped breaker would point to a shorted/failing blower motor. The erratic speeds would need further testing, but still pointing towards a bad motor. As far as the operation with the Espar, it is programmed to come on in the front on low, on cold when the bunk aux heater is turned on to prevent stale air and condensation from forming in the front cab.

 

I have a 2022 LT that has a similar issue. The blower motor slowly faded out one night and has not come back on since. I bench tested the blower motor and it works like crazy. Our local dealership in rural Canada is somewhat useless. They told me it was the blower motor. Company hasn’t gone back to that dealership since. We switched the blower motor out with a known good blower from another truck. Still won’t work when hooked up to my truck. Also swapped out dash switches and still nothing from blower. Circuit breakers under that dash panel up front are all good. Have also replaced the resistor. Any of you have any suggestions?

 

Pull the breaker out and see if the terminals in the fuse box look like they have been hot.