ac blower stops working after a while

I just bought a 2000 chevy impala ls with a 38 while driving the air conditioner the blower fan both just stop working then they come back on after a bit seem to be fine for awhile then does it ag. Your vehicles AC system consists of a compressor condenser evaporator expansion valve a series of tubes and several fansblowers.

Why Is My Air Conditioner Running But Fan Not Spinning

The intermittent operation is happened due to worn brushes inside the motor.

. The blower wont come on for 30-45 minutes after the AC has been turned off but after that it seems to turn back on fine. There may be a safety system that shuts off the blower motor if the back pressure is too high. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power it may cause the blower motor fuse to blow.

The motor can be bad. Last night it stopped again and I tried to just turn the fan from the thermostat on without luck. The problem is the AC will periodically just stop working.

I went to the agent and they said that its the blower motor regulator that i need to replace. It will buzz if trying to restart and cant get going. No matter how many times or position the fan speed knob is moved the front blower motor fails to respond.

I have been trying to track the problem down for the last couple months but it literally only happens every 2 or 3 weeks. The control panel is probably the problem. The control panel for the AC can cause no air-conditioning.

The switch rarely ever fails. AC system can be turned off and on multiple times but the front blower fails to respond. I just had my mechanic looking at it and sure enough we were standing there compressor was coming on and off like it should and then just stopped.

Because of a bad cap or windings Dont assume good voltage. Updated 705pm Eastern on 8707. Usually when it goes bad its because of the blower motor RESISTOR mounted inside the blower motor housing.

First go to the heat pump and see if the condenser fan the exposed fan under the grate on top is working. Usually this is low refrigerant charge causing the evaporator temperature to go below freezing resulting in an impenetrable mass of ice building up on the evaporator coils. After a while it turned off by it self and then it never worked again.

It will still run on reduced voltage until it overheats and stops. It wont buzz when it stops. I bought a used regulator and fixed it to the motor.

The fan motor itself can cause this problem. If a relay is failing they can buzz and cause the same effects. If your blower is working but keeps cutting out then there are more chances of a faulty blower.

Remove blower motor transmission cover 4 Torx Screws. Also If you need to bang on the heater box to start it then its a potential clue of a bad motor. Any sort of electrical spikes or excessive current from a bad relay.

I have experienced this with a Q7 fan blower. Situation we have a friend that owns a 2017 Chevy Trax LT she is a nurse who works with my wife single mom and on a single mom budget. If either one of these components fails to do their job it may result an entire system failure.

Rear AC controls continue to work fine and cold air is blowing out well. Exactly when it stops working pull over safely pop the hood and find the aluminum bottle near the back of the engine compartment. If it isnt running either check the breaker.

Maybe for minutes maybe for days or weeks. Air Conditioning and Cooling Systems - AC unit stops working after a while but will restart when I hit the side of the - I have an older Bryant furnacecontroller and a Carrier outside unit. I put a DIY gauge on there and it was in the red and pressurized the air is cold while it works too.

The controller board is a United Electronic Controls Model HK42F2011. If your Blower Motor for the AC or Heater suddenly stopped blowing look here first it might save you several dollars. While this is not a good fix you might have someone that does electrical work rig up a power cord to the blower motor If the motor is good and plug it in.

Her 2017 Trax about 44000 miles is out of factory warranty. The radiator fan relays are located next to on both ends of the radiator. After a while the AC will stop blowing much air and what little air is coming out seems warm so I dial it down.

Bryant AC furnace burner lights up but blower motor never comes on so the system overheats and shuts down. Running your heating and cooling fan even when the ac isnt on helps circulate air. Does the blower motor work.

When the resistor goes bad the blower motor shorts out causing it to fail. Once I turn on the AC the blower motor will randomly spin and within a second it turns off. After starting the engine if it never quits after running a while then the problem is on the fan motor.

Going down one or two degrees doesnt do much but if I knock it down to say 65 itll start up again. In the link the blower motor RESISTOR is 5. There is a wiring harness loomed into the transmission cover once you have disconnected the motor regulator you can lay the transmission cover to the side.

It sounds like the compressor is supplying too much pressure and the metering orifice into the heat exchanger is freezing. Remove the cover to the side and disconnect the connector to the motor regulator. Blower motor does not run in fan-only mode.

Up to 8 cash back One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay circuit fuse. It would run non-stop but you would have some AC until the heat wave tames and you can get things fixed up. If the resister is bad the blower may work only on high.

As the brushes cant be changed EASILY this is the best solution in my views. See if the heater works also. But the issue was not resolved.

Or you may have a thermostat issue. If it is running and the AC filter is clean you likely have a problem with the blower fan. Just wanted to share my experience with the intermittent running blower.

Starts and stops itself. Check the fuse for the AC if it has one. My AC stops working after using it for approximately 15 minutes.

If not check the fuse. For example if the evaporator blower motor burns out you will get little to no airflow through the vents. Ac Blower Stops Working After A While - Ac unit stops working after a while but will restart when i hit the side of the i have an older bryant furnacecontroller and a carrier outside unit.

Since itll be overloaded at that level itll get too hot and stop. What cause the motor to shut off after 1 hour and comes back on if you let it cool for a while. The blower would then be under high back pressure.

It should be covered with condensation but Im guessing itll be iced over. But after a few hours it stops working and the ac unit blows warm air. Rear Blower follows commanded speeds.

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