I just bought a used 2014 Jeep Grand Cherokee Laredo, I've had it for a week.
I brought it in to get the windshield washer nozzles replaced (they were spraying weird).
When I got the car back I drove away and put the heat on "hi" and climate on "auto" (it's crazy cold here: -12C/11F). After a few minutes, I noticed the heater fan wasn't blowing.
It has a UConnect 5 integrated climate control system, the fan speed was turned to max and the heat was set max, but there was no fan noise and no air blowing at all. And no heat.
I tried a variety of settings -- also shut the car off, opened/closed doors, and restarted it -- but could not get it working. No blower, no heat, no front defrost, nothing. I drove it for almost an hour like this before I could bring it back.
The heater/fan had been working every day since I bought the car last week, it seemed too coincidental that the heater would just stop working like that after getting the washer nozzles replaced -- I just assumed they accidentally disconnected something during the nozzle repair.
I brought it back to the service place and showed them the problem and left the car with them. A couple hours later, when the mechanic took it in to look at the problem, and the fan was now just working fine. He says there's no problem. It appears to have fixed itself.
What would cause the fan to just stop working, and then start working again? I would think if there was a fuse blown, or something got accidentally unplugged, they would just tell me.
One detail that may or may not be important -- They were nice enough to wash the car after replacing the nozzles, and because of the wicked cold, some stuff was noticeably frozen, like the power windows wouldn't go up and down because they were frozen.
Is it possible the cold and the car wash froze something related to the heater/fan and it later just warmed up / thawed out when the mechanic brought it into the garage?
Any ideas what happened to my heater-blower?