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Pelican Technical Article:

Replacing Your HVAC Resistor

Steve Vernon

Time:

1 hour1 hr

Tab:

$15

Talent:

*

Tools:

Hands

Applicable Models:

VW GTI (2006-09)

Parts Required:

New resistor

Hot Tip:

Be careful not to pinch wires when reinstalling

Performance Gain:

Working HVAC

Complementary Modification:

Clean the blower motor

If you turn on your HVAC system and the blower or fan motor only runs at top speed there is a very good chance you have a bad resistor and need to replace it. If your fan is starting to run erratically with no noises coming from the motor the resistor may be starting to go bad. The good news is that the part is relatively inexpensive and can be replaced without tools in under an hour.

If your blower or fan motor runs at full speed regardless of the setting you have it on there is a very good chance your resistor is bad (red arrow).
Figure 1

If your blower or fan motor runs at full speed regardless of the setting you have it on there is a very good chance your resistor is bad (red arrow). The resistor is located behind the glove box above the passenger side foot well.

Begin by removing the two plastic screws holding the insulation piece above the passenger side foot well (red arrow, screws removed).
Figure 2

Begin by removing the two plastic screws holding the insulation piece above the passenger side foot well (red arrow, screws removed). The screws should only be installed hand tight. Do not use a screwdriver to tighten these down.

This photo illustrates one of the plastic retaining screws (red arrow).
Figure 3

This photo illustrates one of the plastic retaining screws (red arrow). The insulation piece they hold in is pretty flimsy so over tightening these screws will rip the insulation.

With the screws removed you can pull the insulation piece down from the dash and foot well (red arrow).
Figure 4

With the screws removed you can pull the insulation piece down from the dash and foot well (red arrow). It is just held in by the forward ledge and friction.

The resistor (red arrow) is located in the air duct between the air filter (green arrow) and the blower motor (yellow arrow).
Figure 5

The resistor (red arrow) is located in the air duct between the air filter (green arrow) and the blower motor (yellow arrow).

Squeeze the large white plastic clip (red arrow); this will separate the resister and wiring connection from the air duct.
Figure 6

Squeeze the large white plastic clip (red arrow); this will separate the resister and wiring connection from the air duct. Pull the unit down and out from the duct.

This photo illustrates the clip that holds the resistor and wiring into the duct (red arrow).
Figure 7

This photo illustrates the clip that holds the resistor and wiring into the duct (red arrow). With it removed squeeze the two smaller clips on the wiring harness to separate the connection.

You can now replace the resistor and install a new one (red arrow).
Figure 8

You can now replace the resistor and install a new one (red arrow). Installation is the reverse of removal.

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Page last updated: Mon 12/5/2016 02:36:10 AM