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Fan heater only works on number 4?

Vauxhall Corsa heater only works on setting 4
Jo Wright, March 2009
it sounds like you require a new resistor pack for the fan switch. different resistors produce different speeds. if the resistor pack is damaged then the current will have an un restricted path. hence why you only get the quickest speed.

Andy, April 2009
apparently the setting 4 works on full power so bypasses the resistor , 1 2 3 all work through the resistor which lowers the voltage to give you a lower speed on the fan. get it fixed because i didnt find this out in time and due to the heater being on full power all the time it burnt out.

pritch, April 2009
Your resistor pack has failed

p, March 2009
link Click here to see other fixes for Vauxhall Corsa.