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Renault Scenic I lift, does not operate on the supply and heating

osu1234 30615 9
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Why did the cabin blower and heating stop working in my Renault Scenic I, and what should I check in the blower resistor circuit?

Replace the blower resistor assembly; the damaged ceramic element and relay are the likely fault [#16821993] For manual air conditioning, the first three fan speeds go through the resistor and the fourth speed goes through a relay in the bottom of the resistor housing, so that speed has a separate power supply [#16820230] Check for +12 V at the resistor on each speed and verify the wiring: brown, cream and pink control wires, two thick red wires for the 4th speed/relay feed, and solid black grounds [#16820251] If voltage appears on the pins when a speed is selected but the blower still does not run, the resistor pack/relay module is faulty and should be replaced [#16820332][#16821993]
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  • #1 16817551
    osu1234
    Level 8  
    Posts: 19
    Rate: 11
    Hello

    In my Scenic, both ventilation and heating stopped working. So I decided to dismantle the turbine turbine engine to check it with the service power supply. It turned out that it works the most. Then I removed the blower resistor and noticed that the thermal fuse (216 degrees Celsius) is a break (I checked it with an ohmmeter). I replaced it with an identical fuse, but without soldering, using screw connections from the electric block so as not to damage it. I connected everything to the car again and it turned out that nothing further worked. I checked the fan fuse, which is below the steering wheel and is good. Can anyone help me what can I do?

    greetings
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  • #2 16820191
    actin
    Level 34  
    Posts: 2689
    Help: 187
    Rate: 799
    The fan is generally heard? Does it only blow through cards?
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  • #3 16820217
    osu1234
    Level 8  
    Posts: 19
    Rate: 11
    I am not sure if I understand what you mean by a fan, but this turbine engine that distributes the warm air in the mixer is as working as possible, but as I try to turn on the heating and ventilation, unfortunately neither of them works. Just before the deterioration, one could feel the burning of the air outlets into the cabin (grates).
  • #4 16820230
    Doktorr
    Level 35  
    Posts: 2430
    Help: 287
    Rate: 1098
    If manual air conditioning. The first three gears of the fan go through the resistor and the fourth through the relay, which is in the bottom of the resistor housing. This gear has a separate power supply. Check if there are pluses in each gear to the resistor.
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  • #5 16820237
    osu1234
    Level 8  
    Posts: 19
    Rate: 11
    Generally a cube is connected to the resistor, which contains many pins. Could you please advise me how to check it out? Because by measuring random pins, on some there were about 14 volts.
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  • #6 16820251
    Doktorr
    Level 35  
    Posts: 2430
    Help: 287
    Rate: 1098
    Schematic search. The controls are brown, cream and pink cables, two thick reds are 4 gears to the relay. Black solid masses.
  • #7 16820262
    osu1234
    Level 8  
    Posts: 19
    Rate: 11
    Sure, if it turns out that the voltage is being given, then the problem is with this green element on the resistor and need to be replaced?
  • #8 16820332
    Doktorr
    Level 35  
    Posts: 2430
    Help: 287
    Rate: 1098
    Yes, but in this case it should be the highest speed because it does not go through the resistor only through the relay mentioned earlier.
  • #9 16821352
    osu1234
    Level 8  
    Posts: 19
    Rate: 11
    I checked the voltage and when setting a given level on the blower appears on the individual pin about 14 V, but nothing works even on the 4th level. Any ideas?
  • Helpful post
    #10 16821993
    Doktorr
    Level 35  
    Posts: 2430
    Help: 287
    Rate: 1098
    Openernica for replacement, damaged ceramic element and relay.
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Topic summary

LABEL_AI_GENERATED
The Renault Scenic I is experiencing issues with both ventilation and heating systems. The user has confirmed that the turbine engine operates when tested outside the vehicle, but the heating and ventilation do not function when reconnected. The blower resistor's thermal fuse was found to be broken and replaced, yet the problem persists. Suggestions from other users include checking the power supply to the resistor and verifying the relay functionality, as the highest fan speed bypasses the resistor. The user measured approximately 14 volts at various pins but still encounters no operation at any speed. A potential solution involves replacing a damaged ceramic element and relay within the system.
AI summary based on the discussion. May contain errors.
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