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Lotus in the Peak
28th - 30th June 2024

Looking For An Elise But Has A Heater Issue?


Ste

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hi all

 

I am currently looking for an Elise Idealy an S2 as I prefer the short roof. I have looked at a few cars but I have my heart set on one imparticular.

 

The only issue with the car is that the heater direction knob does not seem to work. It only blows air into the cabin. Hot and cold air work fine as well as the fan speed 1 2 and 3. I keep reading issues surrounding the resistor but that seems to be more to do with hot air.

 

Could anyone please advise?

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I had the resistor pack go on my 06 111r many years ago, and sure enough it was just the fan speeds (3 first, then 2). 

 

However, and I could be wrong here, when reading on the topic I think I remember reading somewhere that the air flow was directed with a ?solenoid? in later models and that could also suffer similar issues to the resistor pack....


There is a very real possibility that I dreamt that. :)

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Im presuming its a K series? The knob is connected to a deflector plate via a cable IIRC. Remove the 2 front access panels and get someone to twiddle the knob whilst you look at the cable and lever and see what is happening?

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  • 2 weeks later...

They are separate faults if resistor pack goes your blowers don't blow.and for hot cold change and direction change there are two actuators wot fail through water ingress .id recommend do resistor at same time.actuator and resistor are about £70 each and I could do it for £100 +a/c regas if has it

Jon

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I'm not so hot with all the model differences, but my S2 111S has the electric actuator for diverting of the air up onto the screen or down to your feet.

Is that what this one has? I.e. not a cable?

Both the hot and cold as well as the direction actuators can suffer from getting sticky with dirt that accumulates around the bearings for the flaps.

They can be freed up by cleaning, but sometimes the actuator can burn out / fail.

I managed to clean my hot/cold actuartor mechanism with clam on, and it now works OK.

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  • 1 month later...

They are separate faults if resistor pack goes your blowers don't blow.and for hot cold change and direction change there are two actuators wot fail through water ingress .id recommend do resistor at same time.actuator and resistor are about £70 each and I could do it for £100 +a/c regas if has it

Jon

 

Jon

 

I have a similar problem. Originally I thought it was just the aircon as it never seemed to get cold and after Christopher Neil said that they could see dye on one of the aircon pipes it kinda confirmed it but now I'm not so sure having read this post. Even without running the aircon I don't seem to be able to change the temperature setting although I can change the fan speed. I have noticed that the LED for the switch to recirculate the internal air doesn't illuminate either.

 

Could this be a problem with the actuator? Where abouts are the actuators and are they easy to test?

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The re-circ prob is probably the switch and actuators are in front clam ,remove both access panels at front and you will see a large heater pipe from heater box to distribution unit .remove pipe its tight but will come out then U can see inside heater box you'll see the heater flap and actuator at rear get sumone operate controls flap should move freely from left to right.if not would suggest water ingress to actuator.

 

Jon.

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The re-circ prob is probably the switch and actuators are in front clam ,remove both access panels at front and you will see a large heater pipe from heater box to distribution unit .remove pipe its tight but will come out then U can see inside heater box you'll see the heater flap and actuator at rear get sumone operate controls flap should move freely from left to right.if not would suggest water ingress to actuator.

 

Jon.

 

Cheers Jon, I'll have a poke around next weekend if I get a chance and find out what's what. It might be nice to get my blowers working again.

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Cheers Jon, I'll have a poke around next weekend if I get a chance and find out what's what. It might be nice to get my blowers working again.

 

There was a service bulletin to retrofit a water guard to prevent this happening again. 

 

My resistor pack went on my old S2 Exige S. It was intermittent and sometimes only one of the speeds would work. Stratstone did mine (out of warranty).  Fortunately I had that car on a maintained contract hire, so the lease company picked up the near £900 bill.

 

Lotus recommend a clam off approach for A/C cars. Though I have heard people claim they can do it without it. 

 

 

EDIT

 

Sorry just realised your blowers are working, just not controlling heat settings properly... my bad!blush.png

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Simon

 

When the resistor pack goes how does it fail? I know mine definitely switches off and on with fan speed 1, may be 2 but not checked the 3rd speed. Its just the temperature that doesn't seem to change. Be a bit upsetting if that's gone and the clam needs removing as I only had the clam off last summer.

 

Being the 2nd or 3rd owner of the car I've missed that service note. How do you fit the water guard?

 

Cheers

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Simon

 

When the resistor pack goes how does it fail? I know mine definitely switches off and on with fan speed 1, may be 2 but not checked the 3rd speed. Its just the temperature that doesn't seem to change. Be a bit upsetting if that's gone and the clam needs removing as I only had the clam off last summer.

 

Being the 2nd or 3rd owner of the car I've missed that service note. How do you fit the water guard?

 

Cheers

 

 

In terms of the symptoms (IIRC this is 5 years ago now) it started off as speed 2 stopped working. Then speed 1. So I had a binary choice of off or full belt..

 

There's a full description of the issue and the TSB Mod here:

http://wiki.seloc.org/a/Resistor_pack

 

Cars around 2007 came from the factory with the modified resistor pack mod.

 

If anyone with a 2008 or earlier 'Yota S2 takes the clam off for any reason I'd probably recommended to check and do the fix if needed, as the parts themselves are pretty cheap, it's all the labour in getting to them.

 

Garaged cars are less susceptible to the problem, so if the car has been mainly garaged by previous owners, it may never have had an issue, and hence not been fixed.

 

Personally I'd pay someone to do it as it's well outside my spannering comfort zone to start taking clams off.  Basic servicing is about my limit :D 

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