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Skoda Fabia 2000: Blower Fuse Blows at Highest Gear, Overheats at 3rd - Fan Issue?

anusek 11502 13
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  • #1 16680160
    anusek
    Level 16  
    Posts: 467
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    The problem as in the topic, at the highest gear the fuse blows from the blower, at 3rd gear the fuse socket gets very hot. What could be the reason? I suspect there may be something with the fan itself. Has anyone had a similar problem?
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  • #2 16680245
    Ireneo
    Level 42  
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    The fan is probably hard, take a look.
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  • #3 16686352
    anusek
    Level 16  
    Posts: 467
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    What should the current be at 4th blower speed?
  • #4 16686394
    grala1
    VAG group specialist  
    Posts: 9812
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    Smaller than the factory fuse. If it burns it, the current is too big.
    The current depends on the power of the fan and you would have to look for such data in stores offering fans. You divide by 12 and you have the electricity consumed by the fan.
    The most common reason is a hard-rotating rotor, as colleague Ireneo wrote above.
  • #5 16686414
    anusek
    Level 16  
    Posts: 467
    Help: 6
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    Ok, I understand everything, unfortunately I'm afraid of these tests, because the big fuses are burning

    Added after 4 [minutes]:

    maybe someone has a diagram for connecting this fan?

    Added 50 [minutes]:

    One more question for the blower comes the red and brown wires, earlier in the same bundle goes the red / white and brown wires to the plug, which goes on. When you disconnect this plug, the fan stops working. Does anyone know what she is from? I measured the current at full speed and came out around 21 A
  • #6 16686632
    grala1
    VAG group specialist  
    Posts: 9812
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    You did not specify whether there is air conditioning and what if it is.
    Diagram for normal supply with a resistor.

    Skoda Fabia 2000: Blower Fuse Blows at Highest Gear, Overheats at 3rd - Fan Issue? Skoda Fabia 2000: Blower Fuse Blows at Highest Gear, Overheats at 3rd - Fan Issue?

    Power supply from fuse No. 68 with a value of 25A.
    The power supply goes to the E9 gear switch and from it through the N24 resistor to the V2 fan.
  • #7 16686690
    anusek
    Level 16  
    Posts: 467
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    Rate: 150
    Manual version
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  • #8 16686971
    Ireneo
    Level 42  
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    Artur, but why should he want to check the diagram?
  • #9 16687016
    anusek
    Level 16  
    Posts: 467
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    Buddy Ireneo, I forgot to write that the fan lubricated, bought another used, and the problem is still there. Tomorrow I will be testing the fan current consumption outside the installation in the car.
  • #10 16687110
    Ireneo
    Level 42  
    Posts: 7818
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    Just such a small detail ... Or maybe the cabin filter is clogged with amen?
  • #11 16687233
    anusek
    Level 16  
    Posts: 467
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    No, this is also not a reason, because I tested the fan both in the system and in the situation in which it was pulled out.

    Added after 12 [hours] 5 [minutes]:

    I measured the current consumption of the fan itself and it goes out 20.5 A, and the fuse is 25A.

    Added after 9 [minutes]:

    It turns out that the cause may actually be on the fan side. I will measure the current in the car and I think I will make the rotation speed in 3rd and 4th gear the same.
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  • #12 18005273
    Bartek93snk
    Level 1  
    Posts: 1
    Rate: 2
    Hello,

    I refresh the topic. Did someone solve the problem? I also had a thermal fuse for the blower resistor, I gave a slightly larger one and is currently burning in the array. They told me in the store that it could be the fault of the heater motor. Is it possible?

    Regards
  • #13 20672542
    elanowa
    Level 10  
    Posts: 20

    >>16686632
    I will join the topic, because in Fox from 2008 I do not have any power on the fuse from the blower no. 42.
  • #14 20672566
    mateklos
    Level 23  
    Posts: 545
    Help: 50
    Rate: 186
    Replace the inch resistor resistor I had so in leosi I replaced the peace. Rezol was all cracked, there was a bit of shouting about it in the vaga group and they started dosing better replacements
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Topic summary

✨ The discussion revolves around a recurring issue with the blower in a 2000 Skoda Fabia, where the fuse blows at the highest gear and the fuse socket overheats at 3rd gear. Users suggest that the problem may stem from a hard-rotating fan or an overloaded circuit, as the current consumption of the fan is measured at approximately 20.5 A, close to the 25 A fuse rating. Recommendations include checking the fan's rotor, ensuring proper wiring connections, and considering the condition of the cabin filter. Some users also mention the possibility of a faulty heater motor affecting the blower's performance. Diagrams for wiring and resistor specifications are shared to assist in troubleshooting.
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FAQ

TL;DR: Skoda Fabia 2000 blower is on a 25A supply (Fuse 68); “Power supply from fuse No. 68 with a value of 25A.” Diagnose wiring E9→N24→V2 before swapping parts. [Elektroda, grala1, post #16686632]

Why it matters: This FAQ helps Fabia owners stop blown fuses and overheating sockets without guesswork, saving time and money.

Quick Facts

Why does my Fabia’s blower fuse blow on 4th speed?

Overcurrent from a dragging blower motor or high resistance in the circuit. The resistor pack and switch feed the motor; excess load pops the 25A fuse. “The most common reason is a hard‑rotating rotor.” Inspect the motor bearings and the resistor pack for damage. [Elektroda, grala1, post #16686394]

What current should I expect at the highest blower speed?

Typical observed draw is about 20.5–21 A at full speed, which is under the 25A protection. If your reading is higher, the motor or airflow path is restricted. Use a calibrated ammeter in series when testing. Replace components if current exceeds the fuse rating by more than a transient spike. [Elektroda, anusek, post #16687233]

Which fuse protects the blower on Skoda Fabia 2000 and where does it feed?

Fuse No. 68 rated 25A supplies the blower circuit. It feeds the E9 speed switch, then the N24 resistor, and finally the V2 blower motor. Verify continuity along this path before replacing parts. Label wires and check connectors for heat damage. [Elektroda, grala1, post #16686632]

How is the manual HVAC blower wired on this model?

Power flows from Fuse 68 (25A) to the E9 speed selector. Lower speeds route through the N24 resistor and then into the V2 motor. The highest speed typically bypasses more resistance, drawing the most current. Inspect each link if you have intermittent operation. [Elektroda, grala1, post #16686632]

How do I measure blower motor current safely?

Use this 3‑step method:
  1. Disconnect the motor and bench‑test it with a fused 12 V supply and an inline ammeter.
  2. Record steady‑state current after spin‑up; compare to ~20.5–21 A.
  3. Reconnect in‑car and repeat on 4th speed to spot wiring losses. [Elektroda, anusek, post #16687233]

Can a clogged cabin filter cause overheating or blown fuses?

Yes. A clogged filter restricts airflow, raises load, and increases current and heat. This can overheat connectors and the resistor pack, accelerating failure. Replace the filter before deeper diagnostics. It is a low‑cost fix that often restores normal operation. [Elektroda, Ireneo, post #16687110]

Why does my fuse socket get hot on 3rd speed?

Heat at the socket suggests high resistance at terminals or a failing resistor pack. Cracked or degraded resistor assemblies increase heat on mid‑speeds. Replace the resistor pack with an improved unit to stabilize current and reduce connector heating. Inspect and re‑pin burnt terminals. [Elektroda, mateklos, post #20672566]

What fuse value should I use for the blower circuit?

Use the factory‑specified 25A. Do not up‑rate the fuse. “If it burns it, the current is too big.” Fix the cause of overcurrent instead of fitting a larger fuse, which risks wiring damage or fire. [Elektroda, grala1, post #16686394]

What is the N24 blower resistor and its thermal fuse?

N24 is the resistor pack that drops voltage for lower blower speeds. It contains a thermal fuse designed to open on overheat. Oversizing the thermal fuse can allow the pack to burn, damaging the array. Replace with correct parts and fix root causes. [Elektroda, Bartek93snk, post #18005273]

How do I tell if the motor or the resistor is bad?

If only lower speeds fail but full speed works, suspect the N24 resistor. If current is high on full speed and the fuse blows, suspect the motor or airflow restriction. The manual circuit routes speeds via E9 and N24 before the motor, enabling targeted checks. [Elektroda, grala1, post #16686632]

What wire colors go to the Fabia blower motor?

Users report red and brown at the blower, with red/white and brown feeding a preceding plug in the harness. Disconnecting that plug cuts blower operation. Track heat‑stressed connectors in this section when diagnosing intermittent faults. [Elektroda, anusek, post #16686414]

Does the presence of A/C change the blower circuit?

This guidance covers the manual HVAC version. It uses Fuse 68 → E9 switch → N24 resistor → V2 motor. A/C‑equipped cars may add control elements, but the core feed path remains a reference for tracing power and grounds. [Elektroda, grala1, post #16686632]

Is lubricating the blower motor a permanent fix?

No. Lubrication may give short relief, but underlying wear or electrical loading remains. One user lubricated and even swapped in a used motor, yet the fuse still blew. Measure current and address the resistor and wiring, not just the bearings. [Elektroda, anusek, post #16687016]

I replaced the thermal fuse with a larger one and it still burns—why?

Oversizing the thermal fuse masks overheating until the resistor pack or wiring suffers. The root cause is often a failing motor or airflow restriction. Fit the correct thermal fuse and restore factory current by fixing the motor or filter issues first. [Elektroda, Bartek93snk, post #18005273]

VW Fox 2008: no power on blower fuse 42—related tip?

Inspect and replace the resistor pack if cracked or degraded. Community reports show cracked resistors causing blower power issues. Newer replacements are more robust. Verify feed and ground after the swap, and re‑seat connectors firmly. [Elektroda, mateklos, post #20672566]
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