Hello I’m having problems finding out what’s wrong with the heater in my car I’ve checked the fuses changed the blower fan resistor twice and still not working. When I turn the ignition on with the heater setting on 1 2 3 or 4 the heater comes on for 2 seconds and then go off the car is a 2017 skoda fabia. Thanks

56 minutes ago, Fa5 said:

Hello I’m having problems finding out what’s wrong with the heater in my car I’ve checked the fuses changed the blower fan resistor twice and still not working. When I turn the ignition on with the heater setting on 1 2 3 or 4 the heater comes on for 2 seconds and then go off the car is a 2017 skoda fabia. Thanks

Deep load battery check? Alternator working?

 

Asking because my fan once "died" and the issue was that the alternator wasn't charging due to an alternator clutch failure, so the EMS was turning off non-essential systems to keep the car mobile as long as possible.

If you have access to an appropriate reasonable level scan tool for VWs getting a report from it would probably be helpful.  There are owners on here who may be able to do that for you for possibly beer tokens. - Briskoda VCDS Owners Map (click me)

 

And as already put a check of the battery and alternator is an and/or to above, though a report may already point towards sources of  issue(s).

 

The alternator can be very variable with output because of it's design and battery charging system so more careful testing of that is required but a simple battery check with a multimeter directly on to the battery terminals a good number of hours after the car was last run will give an idea if the battery is in a very low state charge (allowing for if you've unlocked the car and it's computer systems are awake and taking some power doing their things).