Recently the blower control on my wife's City Go has stopped working on settings  1,2 and 3. Position 4 works without any problem.

Any ideas where the fault may be?

Thanks in advance  for any replies.

Normally, the blower speed is controlled by resistors (bizarrely, as it is inefficient) and they do burn out occasionally.

I think they are built into the switch itself, which will need replacing. Shouldn't be too costly, but I'm not sure how easy it is to get to.....

 

A reason why they can blow up is dirt and debris being able to get to the fan and causing a slight physical resistance, drawing more current.  Change the pollen filters regularly, and be careful to not let dirt and bits fall into the blower, and make sure the scuttle under the windscreen is kept clean (and drain holes). You can get water, and water-borne debris into the cabin via the blower if the scuttle gets stuff in it.

Edited 28 January, 20215 yr by freemansteve

Heater resistor. This video shows the replacement on a VW Up, and is on a LHD car so you'll need to mirror some bits for RHD. The amount of trim removal necessary for access on a Citigo, and the method of such removal may well be different too, but the resistor will be in the same position between fan and pollen filter.

How to Remove Heater Blower Motor Resistor VW UP - YouTube

Edited 28 January, 20215 yr by Wino

Yes - I wasn't sure. My last car had 3 resistors (!) mounted on the back of the switch itself.

But it is bound to be the problem (unless the blower is slightly blocked and only spins up on full power)