High pitch sqeel from heater fan

[SmartJoeMN]

I have noticed this a few times, when the car is cold, and air temp is cold the fan tends to make a high pitched sqeeling sound on speeds 1-3 (I don't notice it on 4 maybe becasue the fan it to loud). Once the car warms up, the sound goes away.

Anyone else have this issue?

[redbluff]

Yes mine does the same thing if temps are really cold like 10 degrees. Once warmed up it quits making noise.

[SmartJoeMN]

Does anyone else notice this or should smart take a look at the car?

[smartHHO]

Originally Posted by SmartJoeMN

Does anyone else notice this or should smart take a look at the car?

sounds like if it is a cold air thing, less then 10 degrees out, then there would be more chiming in then just you two. I am down here in Texas, and the coldest so far is 28. But when I got into the car, it was already 34 so did not hear anything of the sort. My guess is the greese that lubes the fan is pretty much frozen into a gel, so it does not lube well. So after you start putting heat down there thru the vent, it gets warmed up and lubes as it should. I doubt they are using any greese that is able to withstand such low temps. Good luck though.

[theguywiththelongestname]

mine does this at temps below 35 F or so...

[nonuro]

Mine too. It started when it got blow 10 and now it is all the time until the car warms up. I'll have it looked at at my first service.

[david lord-riehl]

Mine does the same. I talked to my dealer yesterday, and will schedule to have it replaced the next time I take the smart to Halifax.

[theguywiththelongestname]

the noise is more of a mild annoyance rather than a chronic issue, if it becomes chronic, i will take it in for a look-see at the dealer...

[theguywiththelongestname]

i just had this issue occur again over the last couple of days: 38-42 F outside temps, wind, rain and hail...squeeling/loud whirring heater blower motor on "1" and "fan (2)" settings...not occuring on "3" or "4" settings...

the last time this happened outside temps were 28-38 F with snow...

today was 48-58 F cloudy...no noise from the blower motor all day...

could it be cold weater with moisture making it squeel?

I think this will turn into a dealer visit one day soon...

[Carl242]

My fan started making a high-pitched squeal that sounded sort of like the Jetson's car a while back. Then I noticed that at times the noise would change in pitch and the fan would start slowing down. Now my fan switches on 30% of the time, and when it does run, it sounds very sad. Maybe its a fuse thing. Taking it to the dealer on Friday.