Correct A/C operation
Posted: Tue Jul 19, 2022 11:26 pm
Hi Guys, a little while since I posted but have a question that hopefully someone can answer?
I replaced my A/C condensor last year & had the truck re-gassed to spec, all seemed ok when I picked her up (A/C seemed to be blowing cool) etc etc. Fast forward to this summer & things have been heating up here in the UK, so have obviosly been using the A/C a lot, however i have noticed that the air coming from the vents seems to alternate between cold and well.. not so cold!
Don't get me wrong, it does seem to cool down the truck (eventually) but I don't remember it doing this before I changed the condensor and had a re-gas.
The cycle of cold/not so cold air coinsides with the A/C compressor cycling on/off ( 3 or 4 times a min.)
My question is: should the A/C compressor cycle on & off during normal operation, or is this a sign of a problem?
Forscan shows no faults & I have monitored the HVAC low pressure switch status, which never changes. Are there any other sensors i can look at via forscan to try and diagnose a potential problem, or is this just computer wizardry tellin the A/C compressor to switch on/off?
Truck is 2016 3.2 limited.
Cheers, Clayton.
I replaced my A/C condensor last year & had the truck re-gassed to spec, all seemed ok when I picked her up (A/C seemed to be blowing cool) etc etc. Fast forward to this summer & things have been heating up here in the UK, so have obviosly been using the A/C a lot, however i have noticed that the air coming from the vents seems to alternate between cold and well.. not so cold!
Don't get me wrong, it does seem to cool down the truck (eventually) but I don't remember it doing this before I changed the condensor and had a re-gas.
The cycle of cold/not so cold air coinsides with the A/C compressor cycling on/off ( 3 or 4 times a min.)
My question is: should the A/C compressor cycle on & off during normal operation, or is this a sign of a problem?
Forscan shows no faults & I have monitored the HVAC low pressure switch status, which never changes. Are there any other sensors i can look at via forscan to try and diagnose a potential problem, or is this just computer wizardry tellin the A/C compressor to switch on/off?
Truck is 2016 3.2 limited.
Cheers, Clayton.