Hello long time no visit.
Problem arising with fan on the Xantia. Keeps coming on and off even after cold start up and very short journey. Any ideas. Fan very loud, or at least it seems that way to me. Anyone had similar problem?
Many thanks for your help
Xantia 2.0 Petrol Fan constantly comes on
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This can happen if the aircon is switched on all the time...
The more likely cause though is the Bitron temperature sensor having gone open-circuit or the connection to it is bad.
The Bitron sensor will be found screwed into the thermostat housing and it's brown coloured. There will be two other nearby; a green and a blue one.
Check the connection to the Bitron. With it disconnected the fans will run at top-speed constantly as a fail-safe against the sensor failing.
Clean and reseat the connector as a first check.
The more likely cause though is the Bitron temperature sensor having gone open-circuit or the connection to it is bad.
The Bitron sensor will be found screwed into the thermostat housing and it's brown coloured. There will be two other nearby; a green and a blue one.
Check the connection to the Bitron. With it disconnected the fans will run at top-speed constantly as a fail-safe against the sensor failing.
Clean and reseat the connector as a first check.
Jim
Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
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Not quite....both should run continuously at slow speed with the AC running.... if one is coming on and off at high speed when AC is on then chances are the other one is knackered and hence they won't run in parallel (ie slow speed)jmd wrote: This would engage the fans & make them cut on & off, and is normal.
Richard W