9/5 temperature 93 f airconditioner working. Blower stopped working at any speed above low, but did work on low the remainder of the day. Stopped and car rested over night. 9/6 air conditioner worked normally. Turned off ignition and returned later. Only low blower worked. Turned off ignition and blower continued to function and did not turn off.
My son-in-law and daughter are currently driving from Dallas to Champaign, Illinois with 4 yr old and 4 mo old children. They had planned to stop overnight but are concerned that the continuing fan might drain the battery overnight. I am trying to help get answers, but that might not work since it is Saturday.
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Check for full battery voltage at the resistor block, it should have it any time the engine is on, If you don't have voltage to any of the connectors, there is usually a blower motor relay that needs to be checked if all fuses checked out as good. If it DOES have voltage to the resistor, put the blower speed to full high and check for voltage to the blower motor, if none, then there is a circuit failure, if there is voltage, check the ground side of the blower with an ohm meter, it should read near zero ohms resistance.
sounds like your blower motor has stopped working check for power going to the blower system if you have power the blower is probably bad the concern is the lack of a fuse blowing or a breaker not cycling you may have a harness problem sometimes a low grade short will heat up wires then melt them together causing a multisystem failure even though a fuse or breaker didn't blow check you harness
High and low speed on demand is delivered by the same blower. Blower is controlled by the blower regulator. When a regulator is bad, a variable speed is not available. Replace the blower regulator will take care of the problem. Good luck.
It might be the fuse for the AC compressor. Check to make sure the blower motor/fan is working by putting it on heat, or vent and adjusting the level from low to high (not temperature). Fan speed. Hope this gets you started.
There is a HVAC relay and FUSE in the under hood fuse box, have you check both of these? If the blower works on any speed, the blower is good. You say it blows on lowest speed? The blower speed resistor is mounted on the blower housing. The HIGH SPEED BLOWER RELAY is mounted on the blower motor. You may have multiple problems but check fuses first, if all is OK, then a qualified repair shop will need to check further. You do NOT need the whole A/C system replaced. If it does blow cold, thats good, you just need the blower working.
simply "adding a can"is a good way to end up with non-functional A/C. the typical system has high/low pressure switches that enable/disable the system. you need to be at the correct volume of refrigerant as specified on the sticker under the hood. i recommend using the proper equipment, evacuating, pulling a vacuum, and then refilling the system with the appropriate amount.
check if the comp. turning or running. and also check the fan that cool the condenser coil if running. if not check the relay if ON check the voltage across it. If relay do not ON, probably the A/C temp. control not functioning and should be check.