Heating issue, My heater mix, recycle etc flaps have stopped working

[morgannick2000]

Help please-

Boxster 2000 S 3.2

The heater servos have stopped working - the heat mixer, recycle, screen flap motors have stopped working.

1. The fan works and changes speed on the climatronic console, climatronic generally looks ok
2. All buttons work
3. I've checked the fuse - all look ok

I entered the back door codes for the climatronic system to read the C codes and C12 shows that the 'command' for the mixer flap is on 100. C13 shows 'position' and is 66, but changes between 14 an 84 when I move the servo rotor with the motor removed. So the servo is connected.

I've voltage tested from each terminal of the servo motor to earth and tested across the motor - nothing showing on the meter.

I then realised that all of the servo's have stopped, when I select air 'up', 'center', 'down', 'recycle' etc no noise or movement on any visable servo.

I've also swapped the 2 left hand '53' relays under the dash as I suspected that the 'actuation heating' relay was faulty. e.g. Relay 19 swapped for relay 18 (see http://www.theschillings.com/boxrelay.htm) - I don't think both relays are broken (hope so). The servos still did not operate.

So I'm stuck - what shall I do next? Measure the voltage at the relay panel? Is it a trip to the specialist?

PLEASE HELP!! Its driving me mad...

[AFJuvat]

Climate control unit is kaput.

Fairly common problem

[morgannick2000]

Yeah I've come to the same conclusion myself, I've now tested the servo motor and the 'actuation heating' relay (which is power for the fan), both work fine. That just leaves the climatronic unit itself.

Where can I get one and how much does it cost?

[spongerob1]

I have a good used one. I'll check the part number tomorrow and see if it fits your application. If interested let me know. beetle4rob@msn.com Thanks Rob