My vectra blower is not working only on 4

[Keith Purvis]

I have replaced the sensor, I have replaced the blue relay box, I have replaced the motor and the control panel and it's still only working on 4. Can anyone help?

[Mike D]

On 1/5/2024 at 5:19 PM, Keith Purvis said:

I have replaced the sensor, I have replaced the blue relay box, I have replaced the motor and the control panel and it's still only working on 4. Can anyone help?

Hi Keith,  have you tried the resistor ? Has failed on mine twice over its 20 years.  Also had sa.e symptoms 

[AndyR]

Had the same problem with my Astra when I first got it. It too was the resistor on the heater motor . Replaced and all working ok.

[Vauxhall Owners Club]

Totally agree with AndyR it is usually the cause but also check the wiring is not poor connection (wiggle the lead going to the motor and resistor pack when fan switched on)