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Mike Hawthorn

Member

• Mar 8, 2020

• #1

Hi All I need some extra brain power. I have just refurbished my suspension compressor changing the piston and cylinder. The compressor starts to run smooth when I first start the car but after about a minute I see that the compressor starts to slow down for 10 seconds then stutters and stops. Code thrown DTC C1A27 Normal Height Only. Any ideas where to look?

 

johnlad

Well-Known Member

• Mar 8, 2020

• #2

Often find its better to fit a new compressor instead of re-furb kits. What made you decide it needed re-furb in the first place

 

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Mike Hawthorn

Member

• Mar 8, 2020

• #3

I was getting Normal height only coming up occasionally and it was becoming every time I started the car. The compressor piston nylon rings were very worn with a lot of black powder in the crank case. So I ordered a new piston and barrel on the internet thinking that was the problem.

 

johnlad

Well-Known Member

• Mar 8, 2020

• #4

You can try changing the relay for the compressor in under bonnet fuse box, sometimes works but I’d put money on you needing a new compressor

 

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Mike Hawthorn

Member

• Mar 8, 2020

• #5

Thanks Johnlad for your interest. I will try what you say with the relay and do a bit more digging before I part with about 1000 pounds in your currency. I think the gallery pressure is low at 254Kpa and the compressor looks like it is struggling.

 

johnlad

Well-Known Member

• Mar 8, 2020

• #6

Compressor approx £400 if it’s the original Hitachi one, could also be a rusted air reservoir, there known to hole on the top side.

 

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Mike Hawthorn

Member

• Mar 8, 2020

• #7

Thanks John? I am In south Africa and when the government have finished with me it is close to 1000 pounds. Thanks for the info.

 

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Mike Hawthorn

Member

• Mar 21, 2020

• #8

johnlad said:

Often find its better to fit a new compressor instead of re-furb kits. What made you decide it needed re-furb in the first place

Click to expand...

 

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Mike Hawthorn

Member

• Mar 21, 2020

• #9

Feedback on my Hitachi compressor after digging deeper found that a winding on the armature of the electric motor was damaged. (over heated) Found a second hand one with a good motor. The suspension is now working fine with no codes and able to raise and lower without any messages.