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AC problem: temperature display keeps blinking

Discussion in 'Electrical Systems' started by hebbal1273, Feb 23, 2015.

  1. hebbal1273

    hebbal1273 Timido

    Messages:
    5
    I have a strange problem. I do not see anybody posting such an issue. So decided to post this. Even when the AC is in Full Auto mode, the set temperature display keeps blinking. It started all of a sudden. The AC is still working as the cabin cools. I normally keep the temp set to 24C. I have heard that the display blinks if compressor is not on. But in my case it is on as the cabin is cooling down. Tried different temp settings but still not resolved. Switched of the engine, removed the key still the problem persists.
    --- Double Post Merged, Feb 23, 2015 ---
    BTW, the car is Grand Punto 1.3MJD Emotion pack 75HP. 2011 model.
    Last edited: Feb 23, 2015
  2. RaviHegde

    RaviHegde Regolare

    Messages:
    309
    Karnataka
    14.62°N 74.85°E
    Grande Punto 1.4
    Hard to guess what may be the issue. You can try one thing before going to service station: try disconnecting the battery for some time (30 mins to allow all electricals to reset) and connecting it again. Switch on the AC after that and see whether the problem persists. Great if that resolves the problem. You will have to approach service station if battery disconnect->reconnect does not resolve the problem!
    prabhjot likes this.
  3. VIJENDRA SINGH

    VIJENDRA SINGH Amatore

    Messages:
    174
    DIBIYAPUR
    Linea T-Jet
    As per manual, if the automatic climate control system fails to maintain the set temperature in full auto mode, the same shall be notified by the blinking of temperature figures on the AC MID.
  4. vIjAy_kHaSa

    vIjAy_kHaSa Esperto

    Messages:
    1,371
    Panchkula
    Errors in Climate Control Unit memory would have to be read to know what is the problem, would be a problem with sensor or actuator flaps if AC is cooling fine
  5. hebbal1273

    hebbal1273 Timido

    Messages:
    5
    Thanks for the suggestions. Looks like I will have to visit the service station for the issue
  6. Sushant jadhav

    Sushant jadhav Timido

    Messages:
    4
    Pune
    Grande Punto 1.3
    Hi, even I'm facing the same issue with the set temperature display. Along with that, the ODO meter Reading also keeps blinking !!

    can you suggest what the problem may be? I tried disconnecting the battery to reset it, but no luck :(

    appreciate your help.
  7. ghodlur

    ghodlur Esperto

    Messages:
    2,580
    Thane
    The best way to identify the cause of the issue of temp indicator blinking is to connect an OBD and find the fault code.

    I have seen the temp indicator blinking in my Punto too but for a very short time (in secs) after which the reading stabilizes.

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