Difference between revisions of "Heater"

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The manual controls are prone to ceasure and the electrical controls prone to water ingress and failure.
 
The manual controls are prone to ceasure and the electrical controls prone to water ingress and failure.
  
==Manual controls==
+
 
??
 
  
 
==Electrical controls==
 
==Electrical controls==
There are three elements to the heater in the Elise S2 with electrical controls.  One of the most common problems is the loss of temperature control.  This is usually because Lotus used a small motor (actuator) to open/close a flap in the heater unit which is prone to rain water ingress and failure.  Some people have been able to lube/oil/WD40 the flap which the actuator moves and restore control again but usually the actuator will need replacing.
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There are three elements to the heating in the Elise S2 with electrical controls.   
 
 
Do '''NOT''' forcefully move the flap open/closed to help free it.  You'll eventually break either the motor shaft or gears inside.
 
  
 
===Fan/Blower===
 
===Fan/Blower===
For fan failure check the [[resistor pack]]
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By far the most common failure relating to the heating is corrosion of the resistor pack.  Single, multiple or all fan speeds are lost.  A guide exists to change the [[resistor pack]] yourself.
  
 
===Flap distribution control===
 
===Flap distribution control===
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===Heater temperature control===
 
===Heater temperature control===
For heater temperature control failure try the following fixes which increase in complexity:
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For heater temperature control failure try the following fixes, which increase in complexity:
 
# Remove air pipe and lube flap (See below)
 
# Remove air pipe and lube flap (See below)
 
# Replace actuator through service panel (Only for small handed people!)
 
# Replace actuator through service panel (Only for small handed people!)
 
# [[Heater Actuator Replacement]] after removing heater unit.
 
# [[Heater Actuator Replacement]] after removing heater unit.
 
  
 
<gallery>
 
<gallery>
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Image:heater7.JPG|
 
Image:heater7.JPG|
 
</gallery>
 
</gallery>
 
  
 
== DIY air filter ==
 
== DIY air filter ==

Latest revision as of 13:11, 11 December 2009

For S1 see Heater_Matrix The S2 Elise and Exige have two types of heater controls, manual or electrical. Cars after 2002?? have electrical.

The manual controls are prone to ceasure and the electrical controls prone to water ingress and failure.


Electrical controls

There are three elements to the heating in the Elise S2 with electrical controls.

Fan/Blower

By far the most common failure relating to the heating is corrosion of the resistor pack. Single, multiple or all fan speeds are lost. A guide exists to change the resistor pack yourself.

Flap distribution control

TBD??

Heater temperature control

For heater temperature control failure try the following fixes, which increase in complexity:

  1. Remove air pipe and lube flap (See below)
  2. Replace actuator through service panel (Only for small handed people!)
  3. Heater Actuator Replacement after removing heater unit.

DIY air filter

Modification to prevent grit from being sprayed onto the dash. You will need:

  • 1 used stocking. 10 denier is best for optimum fan performance. Higher deniers can reduce air flow too much. Lace top optional.
  • Difficulty: Very, Very easy.

Directions:

  1. Open the front service compartment
  2. Remove one end of the air hose
  3. Stretch stocking over air hose
  4. Refit air hose.

Remember to replace or adjust the stocking annually, or when you notice a drop in airflow.