If your AC only works on high, it could indicate a problem with the blower motor or the fan speed control. The blower motor might be malfunctioning or the fan speed resistor may be faulty, causing the system to only operate at full speed.
When the blower motor will only run on the highest setting, this is more commonly due to a faulty blower motor resistor. Inspect the electrical connector and wire harness for any loose, broken or damaged wires. If no problems are found, more commonly, the resistor will need to be replaced.
Most air conditioners come with a reset button attached to the compressor unit. Typically, it is a red button and is very visible to an onlooker. To reset your air conditioner, all you have to do is press the button, and you won't have to worry about all the heavy lifting.
Airflow Over the Condenser: The AC system relies on airflow to help cool the refrigerant. When the car is moving quickly, more air flows through the condenser, allowing it to dissipate heat more effectively. At lower speeds, the airflow is reduced, which can cause the AC to struggle to cool the air.
The blower motor resistor controls the speed of the AC fan. If it fails, the fan may only work on the highest setting. Location: The resistor is usually located near the blower motor, under the dashboard on the passenger side.
If your air conditioner works on high, it is a very specific issue. It can mean that there is a problem with the blower motor, the control board, or the thermostat. However, we still do a full diagnostic check-up to ensure that all of the switches, wiring, and fuses could not be causing the same issue.
On average, AC compressor costs range from $800 to $2,300, with most folks paying $1,200 for a new one. However, your price will vary depending on factors like the size and brand of your compressor. Before you schedule your replacement, read on to learn about all AC compressor cost factors.
The location of the reset button on your compressor can vary depending on the model and manufacturer. Typically, it is located on the motor or near the motor housing. Look for a small red or black button that is often labeled “reset.”
Once you locate the isolator, you may turn it off and wait for 30 minutes. The time allows for the appliance to dispel electrostatic charge. After half an hour, you can turn the lever your AC should restart without a problem. Once your AC is on, test it to determine if it's working.
If the vehicle's voltage is low, the AC compressor will not be turned on. This could indicate an issue with your battery or alternator - the alternator generates more power when spinning faster, so perhaps the voltage only rises above the minimum on high rpm or acceleration.
The average cost for a Blower Motor Resistor Replacement is between $119 and $154. Labor costs are estimated between $43 and $54 while parts are priced between $76 and $99. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
Reset the AC Using the Isolation Switch
The isolation switch looks like an ordinary light switch with a knob. Once you locate it, turn the knob to the off position and leave it for at least 30 minutes up to an hour. This will allow the electrically operated components in the AC to reset.
Your air conditioner compressor should last the whole lifespan of your air conditioner, about twelve years or more if you choose a ClimateCare air conditioner. However, it might not last that long if your air conditioner is too small for the space it's cooling, or if you don't keep your air conditioner well-maintained.
The technician should be able to tell you if the compressor is (or is not) still under warranty. If you have to pay for labor and the compressor, chances are you're going to need to replace the entire outside unit because it would cost slightly more than replacing the compressor.
Yes, it AC compressor is repairable in most situations. Expert HVAC professionals are the medical doctors of the air conditioning world. They have the skills and knowledge to breathe life into a non-functioning compressor and restore comfort. It all starts with thorough diagnostics.
The compressor plays a vital role in the A/C system, as it pressurizes and circulates the refrigerant. A compressor that is not functioning correctly can cause warm air to blow from the vents. Common issues that can affect the compressor include a faulty clutch, electrical problems, or mechanical failure.
If the AC pressure switch is faulty, it may cause the compressor to turn on and off rapidly. This is short-cycling. It can cause the AC system to work inefficiently and increase wear and tear on the compressor. To prevent higher cooling costs, schedule an AC repair immediately.