What To Know
- Before attempting any electrical work, always turn off the power to the AC unit at the circuit breaker or fuse box.
- Turn the power back on at the circuit breaker or fuse box, and then go outside to the AC unit.
- If the compressor is running but not cooling your home, there may be a problem with the refrigerant or the evaporator coil.
When the scorching summer heat strikes, a malfunctioning air conditioner can be a major inconvenience. If you find yourself in this situation, don’t despair! In many cases, you can jump-start your air conditioner compressor and restore cool air to your home. Follow these steps to get your AC humming again:
1. Safety First:
Before attempting any electrical work, always turn off the power to the AC unit at the circuit breaker or fuse box.
2. Locate the Compressor:
The compressor is the large, boxy unit located outside your home. It typically has a fan attached to it.
3. Check the Capacitor:
The capacitor is a cylindrical device connected to the compressor. It stores electrical energy and helps the compressor start. If the capacitor is faulty, the compressor may not be able to start. To check the capacitor, use a multimeter to measure its capacitance. If the reading is significantly lower than the rated capacitance, the capacitor needs to be replaced.
4. Inspect the Contactor:
The contactor is an electrical switch that connects the compressor to the power supply. Over time, the contactor’s contacts can become burnt or corroded, preventing the compressor from starting. To inspect the contactor, remove the cover and check the contacts for any damage. If the contacts are damaged, the contactor needs to be replaced.
5. Reset the Circuit Breaker or Fuse:
If the circuit breaker or fuse that powers the AC unit has tripped or blown, reset it. This may solve the problem if there was a temporary power surge or overload.
6. Check the Refrigerant:
Low refrigerant levels can cause the compressor to overheat and fail. Use a refrigerant gauge to check the refrigerant levels in your AC system. If the levels are low, you may need to call a qualified HVAC technician to recharge the system.
7. Start the Compressor:
Once you have checked the capacitor, contactor, circuit breaker or fuse, and refrigerant levels, you can attempt to start the compressor. Turn the power back on at the circuit breaker or fuse box, and then go outside to the AC unit. Locate the manual reset button on the compressor and press it. This should start the compressor.
Troubleshooting Tips:
- If the compressor does not start after pressing the manual reset button, check for any loose wires or connections.
- If the compressor starts but then quickly stops, it may be overheating. Check the condenser coils for any blockages or debris, and clean them if necessary.
- If the compressor is running but not cooling your home, there may be a problem with the refrigerant or the evaporator coil. Call a qualified HVAC technician for further diagnosis and repair.
Ending the Heat:
By following these steps, you can effectively jump-start your air conditioner compressor and bring cool air back into your home. However, if you encounter any difficulties or the problem persists, don’t hesitate to contact a professional HVAC technician for assistance. They can accurately diagnose and repair your AC system, ensuring a comfortable and cool summer for you and your family.
Frequently Asked Questions
Q1: Why won’t my air conditioner compressor start?
A1: There could be several reasons, including a faulty capacitor, damaged contactor, tripped circuit breaker, low refrigerant levels, or loose wires.
Q2: Can I jump-start my air conditioner compressor myself?
A2: Yes, you can follow the steps outlined in this guide, but always prioritize safety and consult a professional if you have any doubts.
Q3: How long does it take to jump-start an air conditioner compressor?
A3: The time it takes varies depending on the issue. If it’s a simple problem, it may take only a few minutes. However, if there’s a more complex issue, it may require professional assistance.
Q4: What should I do if my air conditioner compressor starts but then stops?
A4: Check for overheating by inspecting the condenser coils for blockages. Clean them if necessary, and if the problem persists, contact an HVAC technician.
Q5: How often should I check my air conditioner compressor?
A5: It’s recommended to have your AC system inspected by a qualified HVAC technician annually for maintenance and potential issue identification.
