AC Problem

Is the compressor clutch turning when you turn the system on? It sounds like you have a relay that is out not activating the clutch on the compressor which will make the ac not work.

Here is a guide to get us started finding out what is wrong.

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

I would start by checking the fuses and relays, here are some guides to help with that.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please let us know what happens so it will help others.

Cheers, Ken

First check all fuses, underhood and in the pass compartment. Need to test the blower motor for power and ground. It is behind the right side of the dash. If no power, follow wires to fan speed resistor and test for power there, if it has it then the fan speed resistor is bad.

Check the ground too, if it has both and doesnt work it is the motor

Have a pro check this it may be what is called freezing up or maybe low on Freon, but sounds more like freezing up. If Freon was added lately with out a eveacuation then that may be the cause.

Still looks like it's freezing up to me which it wouldn't matter if the Freon is "up to the mark". The pressure s have to be correct as well as no moisture in system.

Did you vacuum the system before charging? Dryer is new? Orfice tube new?

Is your blend door working inside the van?

Roy

There is an access door inside the glove box. Remove this door, there will be another door behind that. Open this door and you will find 2 air filters. Check them to see if they sre plugged up.

Your air conditioning system may have lost its charge of refrigerant, or the compressor may not be engaging when you turn on the A/C, or the blend air door inside the HVAC unit may be stuck in the HEAT position so no air goes through the A/C evaporator.

Start with the compressor. Does it engage when you turn on the A/C?

If so, the compressor is working and the A/C system probably contains enough refrigerant to make cold air, so the problem is inside the HVAC unit. Replace the motor that controls the blend air door (this is a difficult job and best left to a professional since it involves tearing apart the HVAC unit -- about an 8 to 10 hour job!).

If the compressor does not engage when you turn on the A/C, see if it will run by jumping the compressor clutch wire directly to the battery (use a fused jumper wire). If the compressor works when you jump it, and the A/C blows cold air, the system contains refrigerant and the fault is likely a bad A/C compressor clutch relay or a bad clutch cycling switch or pressure switch.

If the compressor does not engage when you jump it, the problem is a bad compressor clutch.

If the clutch engages but the compressor does not turn (the belt will start to slip and squeal), the compressor is loced up and you need a new compressor.

If the compressor clutch engages and turns the compressor, but the A/C still does not blow cold air, the system is probably low on refrigerant and needs to be recharged. If you Have an A/C gauge set, hook it up and see if the system has any pressure.

If it is out of refrigerant or is low, check for leaks, then have the A/C system vacuum purged to remove air. After the air is out, it can be recharged with the specified amount of refrigerant. It is important to get any air out as this will reduce cooling efficiency and may make the compressor noisy.

My advice to you if you know nothing about A/C service is to find a repair shop that specializes in A/C repairs and let them fix your cooling problem for you. Today's A/C systems with automatic climate control are very complex and reuire special tools and know-how to diagnose and repair.