04-10-2018, 08:57 AM
This thread a few weeks ago described the exact same symptoms my car was having:
https://www.berlingoforum.com/thread-17104.html
Air con clutch engaging on fan speeds 1&2 only, but no blower fan on speeds 1&2. So conversely: working blower on 3&4 but no clutch engagement on 3&4.
On the face of it it may seem like a two part problem; the missing fan speeds are a classic sign of a bad resistor pack, but what about the clutch not engaging? Fan speed 4 doesn't even use the resistor, so surely that won't affect the clutch engagement? The OP in the above thread thought it was likely another problem elsewhere. Unfortunately they haven't returned with a solution.
Well, after replacing the resistor pack (mine was v.old and rusty), it all works as it should, clutch and all. Without looking at a circuit diagram I find it hard to imagine how those failures work but they do. Replacing the resistor pack was certainly a lot easier than switching the HVAC panel as posited in the thread.
Amusingly, a French Citroen garage (I was en vacances) wanted nearly 70 euros for a blower resistor pack!! £6.50 on eBay. You could keep two spare in the car and the difference still pays for an upgraded cabin on the ferry.
https://www.berlingoforum.com/thread-17104.html
Air con clutch engaging on fan speeds 1&2 only, but no blower fan on speeds 1&2. So conversely: working blower on 3&4 but no clutch engagement on 3&4.
On the face of it it may seem like a two part problem; the missing fan speeds are a classic sign of a bad resistor pack, but what about the clutch not engaging? Fan speed 4 doesn't even use the resistor, so surely that won't affect the clutch engagement? The OP in the above thread thought it was likely another problem elsewhere. Unfortunately they haven't returned with a solution.
Well, after replacing the resistor pack (mine was v.old and rusty), it all works as it should, clutch and all. Without looking at a circuit diagram I find it hard to imagine how those failures work but they do. Replacing the resistor pack was certainly a lot easier than switching the HVAC panel as posited in the thread.
Amusingly, a French Citroen garage (I was en vacances) wanted nearly 70 euros for a blower resistor pack!! £6.50 on eBay. You could keep two spare in the car and the difference still pays for an upgraded cabin on the ferry.