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HeatingLow severity

Heater fan only works on some speeds

Annoying rather than dangerous.

Symptoms

Fan works only on the highest setting, or not at all.

Likely cause

A failed blower resistor pack or worn switch.

Suggested fixes

Listed roughly in the order most owners try them.

  1. 1

    Replace the resistor pack

    The resistor sits in the heater box. Replace it and check the connector.

    Difficulty:
    Easy DIY
    Cost:
    £ (Under about £50 in parts)
  2. 2

    Replace the fan switch

    If the resistor is good, the switch contacts are often burned.

    Difficulty:
    Easy DIY
    Cost:
    £ (Under about £50 in parts)

This is general guidance gathered from owner experience and workshop practice, not a substitute for a workshop manual or a qualified mechanic. Costs are rough parts-only guides. Brakes, steering and suspension work affects safety, so if in doubt have it checked professionally.

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