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B1B78 System Pressure Ventilation

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Old Jun 6, 2019 | 04:40 PM
  #1  
Old Mate's Avatar
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Drifting
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Default B1B78 System Pressure Ventilation

Hi

Does anybody have any idea about this?

So I was literally in the Rover about to leave on a trip and notice the aircon is not cool. I stuck a thermometer in the air vent and it was reading around 75 when I had the aircon set to as cold as it can go and full fan.

I checked the Low pressure side of the system with a regas pressure tester and it showed in range for R134 etc.

I read the codes on the IID Tool and this came up.

A couple of weeks ago the aircon was not cooling very well and I regassed the system after checking for codes with the tool (and there were none at that time).

I should add, I just realised a couple of weeks ago I noticed condensation dripping from the behind the rear tire on the drivers side. I hadn't noticed this before. I read a bit about it and figure its from the rear aircon pipes?

Any ideas?

Thank you!
 

Last edited by Old Mate; Jun 6, 2019 at 04:50 PM. Reason: Adding info
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Old Jun 6, 2019 | 06:11 PM
  #2  
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Baja
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From: Huntington Beach CA
Default

No idea here.

Are you sure you filled correctly?
 
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Old Jun 9, 2019 | 10:19 PM
  #3  
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Drifting
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Default Update

So, it turns out there was too much refrigerant in the system, hence the code was thrown.

The mechanic evacuated the system and re-gassed with the correct amount and everything appears to be working correctly (I've just driven 1,800 miles in the last 3 days without a problem).

So it appears to by my fault. What is strange, and what I've still not worked out is a couple of weeks ago, after about 10 days of road trips, on our way back home we noticed the air con was not cold. And, when I checked the system, it appears to be low according to the instructions on the air con pressure gauge I bought. It was only a low pressure side though so I guess the lesson learned is to check both high and low - and also learn what I'm doing

Thanks, Abran for your reply. I wanted to follow up in case anybody else gets this issue because I found very little information about it online.

Cheers
 
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