Editing Resistor pack (section)

== Installation of Lotus Exige S2 heater fan fix : Cars with Aircon  ==
Requires : 1 x Heater fan resistor replacement package (Elise S2) (A120P0148S)

Time : Around six hours to complete this job. Clamshell removal is the starting point.

Basic Steps : 

# Discharge the aircon system from service point (requires removal of right rear air intake duct behind door). 
# Remove front clamshell, water cover, wiper motor bracket and fuse box. 
# Loosen wiring loom and disconnect HVAC thermostat and fan motor. 
# Remove large air hose / duct from outlet of heater maitrix (top) to car vents.
# Remove air con hoses to and from expansion valve (located on top /rear of heater matrix)
# Gently bend the brake hose from master cylinder up and out of the way. 
# Remove vacuum hose from servo (pull out the rubber stopper from servo case with hose)
# Remove water hoses into heater matrix (gently, the hoses will feel welded on but the connecting pipes are only packed into the top of the box with silicon sealant).
# Once clear as below, you should be able to unclip the heater assembly from the fan and withdraw the heater and evaporator unit diagonally in one piece. 
# Remove the heater fan unit from the car. It is not unusal to find the floor of this chamber, flooded, we will drill holes later to fix this. 
# Remove silver resistor block from fan unit and discard.
# This is a good time to apply 12v direct to fan motor to ensure that motor is operational before you go to all the trouble of re-installing a defective one. 
# Installation of the lotus modification kit per other instructions on this page and the technical service bulletin that comes with the kit. Assemble the heater fan and modified HVAC unit together and test for fit. 
# Drill drainage holes into the 4 corners of the front HVAC chamber if you have not already done so. 

Installation is the reverse. First locate the heater fan into oen end of the HVAC chamber. Then install the heater unit - '''NOTE''' : there is a small a/c drainage hose that needs to be reconnected to the bottom of the heater matrix whilst inserting the unit into the car.  

Finally, clip the heater and fan assembly together in situ, reconnect all hoses for water and check for leaks. 

Repressurise aircon and check for leaks (mine leaked at the mounting point where the aircon pipe from the sill connects to the front pipework).

Finally reinstall clamshell and other components per the service manual.

<gallery>
Image:clamshell off.jpg|Clamshell off
Image:S2Pipework.jpg|Pipework 
Image:Flooded.jpg|Flooded 
Image:Fan Panel.jpg|Resistor block modification - fan plate installed 
Image:Assembled.jpg|assembled heater matrix and new resistor pack 
Image:Holes drilled.jpg|Holes in HVAC chamber drilled 
Image:Fan in.jpg|Heater Fan in place 
Image:S2installed.jpg|Kit installed and mounted into HVAC chamber 
</gallery>