My 1996 ford explorer Air conditioner suddenly stopped blowing cold air.
My air conditioner suddenly stopped working, it does not have voltage to the switch on the dryer. The fuse is good. Besides from taking the dash panel out, where else I look , is there a relay between the fuse and the dryer switch??
Re: my 1996 ford explorer Air conditioner suddenly...
You need to check two things for Ford A/C:
1) Verify that the proper levels of old/r134a are present, you can do this your self it takes only a cheap gauge and a thermometer, you will need to check both the low and high side pressures. What you are looking for is that both sides read what they should for the ambient temp outside, at 95F it is around 42 on the low side and 275 on the high side.
2) Make sure the A/C clutch is kicking in.
Most problems are going to be ring leakage that causes low fluid levels, or a hole in the dryer that does the same thing. If you have proper levels and the clutch is still not locking in and turning the compressor and you do not have the tools or knowledge to start replacing parts take it to a shop and have them look at it.
If you want to post the results of the above test I will try to help more.
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Most likely you have air trapped in your engine, particularly in the heater loop. You need to properly bleed the air out of your radiator cooling system. The hot and cold blasts of air coming from first hot water followed by air.
Read up on how to bleed air out of your radiator system. Some systems are very difficult to bleed.
If after doing a good bleed of the radiator system the problem returns, you may have a bad head gasket or other leak in your cooling system which is injecting air into the cooling system (radiator/water cooling system).
The very first thing you need to do is to check for fuses or
say faulty fuse. Secondly check fan which starts along with air conditioner, it
might be manually switched off or the fan may have been clogged. Also reason
can be lack of refrigerant - charge your air conditioner with refrigerant. Last
thing you need to check is cooling coil - the cooling coil may freeze if there
is no refrigerant in the system.
I answered this in a different question but I was assuming the air was not coming out of the right vent. If the air is not blowing at all, you need to check for voltage at the blower fuse, the blower motor, and the resistor. If there were a blockage such as a dirty cabin air filter, you should hear the blower running.