How to Repair Your Home Air Conditioning Unit

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As summer temperatures rise, a malfunctioning air conditioning unit can be a major inconvenience. Whether your unit is blowing warm air or not turning on at all, it's important to address the problem as soon as possible to avoid discomfort and potential damage to your unit. In this article, we'll go over some common issues that can arise with home air conditioning units and provide step-by-step instructions for how to troubleshoot and repair them.

Common Air Conditioning Unit Problems

Warm Air Blowing From Air Conditioning Unit

If your air conditioning unit is blowing warm air, the first thing to check is your thermostat. Make sure it is set to "cool" and set to the desired temperature. If this doesn't fix the problem, check your air filter. A dirty air filter can restrict airflow and cause warm air to blow from your unit.

Air Conditioning Unit Not Turning On

If your air conditioning unit is not turning on at all, check your circuit breaker to ensure that the unit is receiving power. If the circuit breaker is not the issue, check your thermostat to ensure that it is set to "cool" and set to the desired temperature.

Leaking Air Conditioning Unit

If water is leaking from your air conditioning unit, it could be due to a clogged condensate drain line. To fix this issue, locate the drain line and remove any debris that may be blocking it. If the drain line is clear and the unit is still leaking, it may be due to a refrigerant leak, which requires professional repair.

How to Repair Your Air Conditioning Unit

Clean or Replace Your Air Filter

A dirty air filter can restrict airflow and cause your unit to blow warm air or not turn on at all. Check your air filter and replace it if it is dirty. If your filter is reusable, clean it according to the manufacturer's instructions.

Clean Your Condenser Coils

Dirt and debris can accumulate on your condenser coils over time, which can cause your unit to work less efficiently or not turn on at all. To clean your condenser coils, turn off power to the unit and use a soft brush or cloth to remove any debris. If the coils are extremely dirty, you may need to use a coil cleaner.

Check Your Thermostat

Ensure that your thermostat is set to "cool" and set to the desired temperature. If your thermostat is not working properly, you may need to replace it.

Clean Your Condensate Drain Line

A clogged drain line can cause water to leak from your unit. Locate the drain line and remove any debris that may be blocking it. You can also use a wet/dry vacuum to remove any debris that may be further down the drain line.

Advantages and Disadvantages of DIY Air Conditioning Repair

Advantages

• Save money on professional repair costs.
• Gain knowledge and skills for future repairs.
• Immediate repair without waiting for a professional technician.

Disadvantages

• Potential for further damage to the unit if not repaired correctly.
• Potential for injury or electric shock if not performed safely.
• Limited knowledge and resources compared to a professional technician.

FAQs

Q: Can I repair my air conditioning unit if it is still under warranty?

A: It is best to check your warranty information to determine if repairs should be performed by a professional technician. Attempting to repair the unit yourself could void your warranty.

Q: How often should I replace my air filter?

A: It is recommended to replace your air filter every 1-3 months, depending on usage and the manufacturer's recommendations.

Q: Can I use a regular vacuum to clean my condenser coils?

A: It is not recommended to use a regular vacuum, as it can potentially damage the coils. Use a soft brush or cloth to remove any debris, or use a coil cleaner if necessary.

Q: How often should I have my air conditioning unit serviced by a professional technician?

A: It is recommended to have your unit serviced once a year by a professional technician to ensure optimal performance and prevent potential issues.