Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Weird heater problem

samppa

Member
Feb 17, 2019
488
2,271
My Island Cottage
so.. a friend has a weird problem with ptc heater.. maybe you guys can help out. Blows only cold air even at HI heat, then maybe after 30seconds blows really hot for a few seconds, then again cold air for next 30sec, then hot for a few seconds.. cycles like this.
AC on/off has no effect.. model S from 07/2014.

Is this ptc going bad or maybe some control module fault? Car gives no faults or error codes.
 

boaterva

Supporting Member
Supporting Member
Apr 2, 2016
7,575
3,817
Northern Virginia, USA
May not help but does it work on low speed? I’ve seen posts where the heater can’t keep up with high air flow; it’s cooled too much.

It it works on low flow, that will tell you something. If not then it has a general problem.
 

boaterva

Supporting Member
Supporting Member
Apr 2, 2016
7,575
3,817
Northern Virginia, USA
Out of warranty.. can't get a comment from Tesla because they are impossible to reach by phone..
Had that issue checking on a car in for service. Phone went to VM. Texts finally answered.

Have you tried support/car issues? They could pull the car logs and perhaps see what the issue is. Or make an appt from the app but phone support should be able to get somewhere.

I never call the service center for anything except when I have a car on the premises.
 

Products we're discussing on TMC...

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top