et0
24-06-2014, 08:30 AM
Hi all, I got a new old car recently and (of course) the aircon doesn't work.
Plugging in the laptop shows an error that the HP sensor (located on the side of the condenser) "signal too low".
There is an LP sensor as well.
So you switch on the AC and after about 2 seconds the "econ" light comes on and the fault code reappears.
The condenser fan doesn't run and I don't hear the compressor kick in.
My question is: does this indicate insufficient refrigerant, or simply that the compressor didn't start so the high side pressure didn't increase, so the ECU turned it off again?
There aren't many places around that claim to do automotive AC other than putting more gas in so I just want to try and diagnose it first.
Thanks for any pointers
Plugging in the laptop shows an error that the HP sensor (located on the side of the condenser) "signal too low".
There is an LP sensor as well.
So you switch on the AC and after about 2 seconds the "econ" light comes on and the fault code reappears.
The condenser fan doesn't run and I don't hear the compressor kick in.
My question is: does this indicate insufficient refrigerant, or simply that the compressor didn't start so the high side pressure didn't increase, so the ECU turned it off again?
There aren't many places around that claim to do automotive AC other than putting more gas in so I just want to try and diagnose it first.
Thanks for any pointers