Heater Fan Speed Module
The resistor pack is a simple device which allows multiple fan speed settings from the same 12V input.
It has three 12V inputs and a single output, which is the motor feed.
Unfortunately due to the position Lotus have located the resistor pack it is prone to high corrosion leading to eventual failure.
Most failures are with the electrical spade connections on the resistor pack and not the internals of the pack itself but whatever the cause it needs to be replaced to restore full fan functionality again.
Any loss of single, multiple or all fan speed controls indicates resistor pack failure, the most common connection to fail first is the motor feed leading to an abrupt loss of all speeds.
Dealers may advise this fix requires them to remove the front clamshell, but it is possible to replace the pack through the passenger service panel.







![Heater Fan Speed Module [4312]](/img/up/4f/5_171ad9e.jpg)
![Heater Fan Speed Module [6032]](/img/up/a5/163-2100a.jpg)
![Heater Fan Speed Module [6034]](/img/up/5a/165-4e328.jpg)
