How to Replace Trane XR11 Capacitor? (2024)

FAQs

Can I replace HVAC capacitor myself? ›

You can replace an AC capacitor yourself by determining its size, buying another one online, and installing it. However, we advise against this because capacitors can be dangerous. Even when disconnected from power, capacitors still hold an electrical charge, and mishandling them can lead to dangerous outcomes.

Capacitors are near the blower motor in the same compartment. It should be screwed to the housing or it can be tucked behind the control panel.

The AC unit should turn on within the next two to three minutes. Verify the unit is working properly.

AC capacitors are designed to last for many years, but eventually, they will need to be replaced. On average, an AC capacitor might last between 5-20 years. However, some factors can affect the lifespan of your AC capacitor.

Capacitors provide the power that certain A/C parts need to do their job. The average capacitor can last around 20 years, but in places like Arizona, things can be a little different, thanks to extreme heat.

The capacitor is responsible for providing power to the AC compressor, so when it fails, the compressor can't run properly. As a result, your AC unit won't be able to cool your home effectively.

Signs of a bad AC capacitor include humming noises coming from the unit, slow starting or stopping of the fan motor, and frequent cycling on and off. AC capacitor troubleshooting should begin with checking for any visible signs of damage such as bulging capacitors or leaking fluid.

Without this component, the cooling cycle won't start and indoor temperatures won't go down. Other signs of capacitor problems include: Loud humming sounds coming from the AC condenser. Having your air conditioning shut off without warning.

Why do HVAC capacitors fail so often? ›

AC capacitors are extremely sensitive to heat, which is why they are normally hidden deep inside the AC unit. Heat will cause this part to lose its ability to hold an electrical charge. This can cause the capacitor to become much less efficient. Or, in worst case scenarios, it could cause the capacitor to fail.

If you suspect that your AC's capacitor is going bad, we highly recommend turning off the unit and calling in a professional to come in and fix the problem.

The average cost for professional capacitor replacement is between $60 and $200. (For comparison, the typical emergency room visit costs $774, reiterating our advice to hire a professional.) The job should take about an hour for a technician to complete. Your HVAC system can't operate properly without an AC capacitor.

If the start capacitor malfunctions or wears out, it usually prevents the HVAC unit or the blower from turning on. A bad run capacitor won't prevent the unit from starting, but it can lead to the unit shutting down prematurely, overheating, or making more noise than usual.

Can You Replace an AC Capacitor Yourself? Replacing a capacitor is a relatively simple task that most people can do themselves with a little bit of research. However, it is important to remember that capacitors store a lot of energy, so it is necessary to discharge the capacitor before working on it.

HVAC capacitor replacement generally costs around $250, including installation. However, some higher-capacity devices may cost $400 or more.

Capacitors are integrated into your air conditioning system with specific wiring and require precise handling to avoid severe risks, including electrocution. Unlike other DIY projects, capacitor replacement demands specialized tools and expert knowledge to ensure safety and correct installation.

Most of the motors in your air conditioner can't run without a good capacitor. Like I said, they support these motors. They help the motor start and run efficiently. Some people have gone out to their air conditioner and noticed the fan wasn't spinning on their AC as it should be.