You will need a set of a/c gauges, a vacuum pump, freon and oil....... Put the gauges on both the low and high side ports (blue goes to the low side and red goes to the high side and yellow will go to the vacuum pump).... Vacuum the system down for about 1 hour and then let it sit for 1 hour to see if it will at least hold a vacuum and if so then vacuum it out for an additional 1 hour and then recharge it. Add your freon and oil at a slow pace and watch the gauge readings. Depending the outside temperature you will what the high side to be between 200 to 250psi and the low side to be between 30 to 40psi.
You have to get it recharged. you have no freeon left which makes the cold air
May need to be recharged.
It has to do with the type of refrigerant that the AC unit needs to be recharged with.
Your A/C needs recharged.
If it needs recharged, that is because there is a leak. My truck has not needed recharged in the 12 years I have owned it.
It could need recharged or the damper might not be closed.
If there is no cold air coming from the air conditioner on a Honda Odyssey the condenserÊmay have failed. No cold air coming from the air conditioner can also mean that the unit needs to be recharged.
If it does blow just not cold air you should see if it needs to be recharged
Recharging should be on low-pressure side only
Possibly needs recharged with refrigerant. You can check low pressure side with a guage.
TRY THE AIRCONDITIONING BELT
Air conditioner is malfunctioning possible needs to be recharged or the compressor replaced