how much to replace ac contactor


AC Contactor Replacement: How Much Does It Really Cost?

Are you experiencing issues with your air conditioner not turning on or not cooling as it should? One possible culprit could be a faulty AC contactor. The AC contactor is a critical component of your air conditioning system that controls the flow of electricity to the compressor and condenser fan. Over time, this component can wear out or become damaged, necessitating a replacement.

Replacing an AC contactor is a task that should be handled by a professional HVAC technician, as it involves working with electrical connections. However, before you schedule a service call, you may be wondering about the cost associated with this repair. In this article, we will discuss in detail the factors that determine the cost of replacing an AC contactor and provide you with insights to help you make an informed decision.

Factors Affecting AC Contactor Replacement Cost

1. Type of AC Contactor

The first factor that affects the cost of replacing an AC contactor is the type of contactor being used. Two common types of contactors are single-pole contactors and double-pole contactors. Single-pole contactors are typically used for smaller air conditioning units, while double-pole contactors are used for larger units. The size and complexity of the contactor will play a role in determining the overall cost of replacement.

2. Brand and Model

The brand and model of the AC contactor can significantly impact the cost of replacement. High-end brands or specialized models may be more expensive to purchase than generic or standard options. It is essential to discuss the available options with your HVAC technician to find a suitable replacement that fits within your budget.

3. Labor Costs

In addition to the cost of the AC contactor itself, you should also consider the labor costs associated with the replacement. HVAC technicians typically charge an hourly rate for their services, which can vary depending on the location and level of expertise. The complexity of the replacement process can also influence the labor costs. It is advisable to obtain quotes from multiple technicians to ensure you are getting a fair price.

4. Additional Repairs or Replacements

Sometimes, a malfunctioning AC contactor can be an indication of other underlying issues within your air conditioning system. During the inspection, if the technician identifies any additional repairs or replacements that need to be carried out, it will impact the overall cost. It is crucial to address these issues promptly to prevent further damage to your system and ensure efficient operation.

5. Warranty Coverage

If your air conditioning system is still covered under warranty, the cost of replacing an AC contactor may be partially or fully covered by the manufacturer. It is essential to review the terms and conditions of your warranty to understand what is included and what is not. Consulting with your HVAC technician can also provide clarity on warranty coverage and help you navigate the process more effectively.

The Average Cost of AC Contactor Replacement

While the cost of AC contactor replacement can vary depending on the factors mentioned above, generally, you can expect to pay between $150 and $350 for the parts and labor. Smaller contactors for residential units tend to be on the lower end of the price range, while larger or more specialized contactors for commercial or industrial units can fall on the higher end. It is worth noting that these prices are estimates and can vary based on location and other factors.

Why Hiring a Professional is Essential

Although replacing an AC contactor may seem like a straightforward task, it is important to emphasize the necessity of hiring a professional technician for this job. Working with electricity can be dangerous and requires the expertise and tools of a trained HVAC technician. Improper installation or handling of electrical components can lead to severe damage, injuries, or even fire hazards.

By hiring a professional, you can have peace of mind that the replacement will be done correctly and safely. Additionally, HVAC technicians possess the knowledge and experience to diagnose any other potential issues that may be affecting your air conditioning system. They can provide you with valuable advice on maintenance and preventive measures to prolong the lifespan of your system and enhance its efficiency.


If you're facing issues with your air conditioner and suspect that a faulty AC contactor may be the culprit, it is crucial to have it replaced by a professional technician. The cost of replacing an AC contactor can vary based on factors such as the type of contactor, brand and model, labor costs, additional repairs or replacements, and warranty coverage. On average, you can expect to pay between $150 and $350 for parts and labor.

Remember, hiring a professional HVAC technician is essential to ensure a safe and proper replacement. Their expertise and knowledge can help uncover any other underlying issues and ensure the efficient and reliable operation of your air conditioning system. Don't compromise on the quality of the service, as it can save you time, money, and potential headaches in the long run.


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