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Thread: air con fault code 21/22 sunlight sensor

  1. 31st January 2011, 07:22 PM #1
    shamirj
    shamirj is offline Wizard Supporter
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    air con fault code 21/22 sunlight sensor

    hi all,

    today of all days my air conditioner in the D2 packed up. the fan is not blowing any air at all, the air cond is clicks on/off but there is no air blowing out the vents. i did a manual check with the lcd screen (auto + direction switch) then switched car on. error code fc 21 & 22 which is the sunlight solar sensor on top of the dash. just happened to have another and swapped the head around but no differences. 3 wires connect to the sensor not sure where they go to. fuses seem all ok. checked fuses under driver side dash and under bonnet (d/s) are there more fuses elsewhere. code states 'open or short circuit, no solar heating connection' what does this mean many thanks for any help
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  2. 31st January 2011, 09:13 PM #2
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    LandyAndy
    LandyAndy is offline RoverLord Gold Subscriber
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    Sunlight sensor will show a fault if you dont do the test in full sun.
    Was a recent post with the same issue,burnt fan motor was the issue.
    Andrew
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  3. 1st February 2011, 07:16 AM #3
    shamirj
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    FC 00

    re did the test this morning and a new code appeared fc 00, sunlight sensor was in full sun, need to chase this code down now. thx
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  4. 15th September 2014, 07:46 PM #4
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    lardy
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    Did that code prove to be nothing all good I believe?
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  5. 15th September 2014, 10:41 PM #5
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    sierrafery
    sierrafery is offline YarnMaster Silver Subscriber
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    00-no faults logged
    11-in car temp sensor fault
    12-ambient temp fault
    13-thermister fault
    14-heater coolant temp sensor fault
    21-sunlight sensor left side fault
    22-sunlight sensor right side fault
    31-left hand temp control servo fault
    32-right hand temp control servo fault
    33-air distribution servo motot fault
    Discovery Td5 (2000), manual, tuned
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