nowhere did he say it was only working on high, quite the contrary he said "It is blowing out warm air !!! What gives? All other functions work correctly but no cold air anymore."
it sounds like freon to me. here's a post from mark basch about why one side would blow hot and the other cool:
Date: Wed, 24 May 2000 16:29:33 EDT
From: Mark Basch
Subject: [NSX] Fwd: [NSX] Air Cond. on my 91 - Help - long
To:
[email protected]
Doug- Long story, simple solution- low freon. I've described this in long
form before, the short version is when the freon is low the car always blows
colder on the right side than on the left because the point where the cold
air is 'made' in the evap is in the lower right corner, and when low the evap
warms first at the point furthest from where the air is made cold, upper
left. The duct is a three compartment affair, and the left compartment is in
front of this warm spot on the evap, thus feeds the left vent with warmer air.
(still with me?)
When the system is low, the quantity of freon available as a liquid, to be
converted to a gas (and thus create "the cold") is not enough to cool the
whole evap at low speed, but at a higher speed, the faster compressor speed,
coupled with more air moving over the condensers, helps make up for this
shortfall, so the a/c works better at speed. (the more air cooling the
condenser, the faster the freon gas, can be converted back to freon liquid,
so the compressor can start the whole thing over again).
(still with me?)
And- it is totally normal, than when the humidity is high, and the evap core
temp very low, you get fog.
The mode door for fresh / recirc always moves by itself when the temp
selected gets closer to the temp achieved. It only stays on recirc long
enough to close the gap between selected and achieved, then goes to fresh as
the desired mode when recirc is no longer needed.
To verify you have low freon, check the sight glass mounted on top of the
receiver / drier, which is the aluminum cylinder about 3 inches dia by 7
inches tall, located to the right of the spare tire (as you face it). With
the engine and a/c on, the sight glass should be completely clear. If you see
a few bubbles, its a few tenths of a pound low.
If its foamy, its probably half a pound or 7 tenths low.
I would take it back to the place that replaced the condenser and line, have
them check for leaks, and top up the freon, and charge it to your insurance
if they paid for the repair.
Good Luck,
Mark
