Reliable HVAC & Appliance Repair (866) 516-1222

Licensed HVAC & Appliance repair expert service

Why Your Furnace Wont Turn Off

Why Your Furnace Won’t Turn Off

Why Your Furnace Won't Turn Off

Your furnace is an integral part of your home comfort system and, when it finds out of order, it can be quite disruptive to your daily life. While typically part of a larger HVAC system, it is entirely likely that, at some point, your furnace may not turn off and could become a potential hazard.

Common Reasons Your Furnace Won't Turn Off

It is important to note that your furnace not turning off is not always a cause for concern, but it does bear watching. Generally, there are a few common reasons that may contribute to your furnace not turning off, including:

  • Faulty Thermostat: A thermostat could be the culprit when a furnace continually runs. An older model thermostat with a mercury switch might short out, resulting in either heated air flowing or an increase in temperature. Nevertheless, a thermostat can be easily replaced with a newer, digital model.

  • Blocked Air Vents: Blocked air vents can be another potential cause for a furnace not turning off. If there is inadequate airflow, the furnace insists on performing, yet it cannot reach the desired temperature. To rectify this, simply remove any obstructions to allow for proper airflow and observe if the behavior ceases.

  • Clogged Air Filter: An air filter in a furnace is an essential element of the furnace working to do its job. A clogged air filter can lead to the furnace not turning off. When the filter becomes clogged, air is unable to flow freely, causing the furnace to be forced to over-compensate. By changing the filter, or thoroughly cleaning it, you can ensure that air flows freely, resulting in a properly functioning furnace.

Getting it Fixed

Having identified a common issue that may affect your furnace not turning off, you may consider attempting to fix the issue. While a thermostat and a clogged air filter may be replaced and cleaned, respectively, to help remediate the issue, more in-depth repairs may require the help of a professional technician who can diagnose the problem and provide a detailed solution specific to your system.

Whether you have a broken thermostat or clogged air filter, it is always strongly recommended to contact a licensed and trained HVAC technician to get the job done correctly and safely. These professionals can find the root cause of your furnace not turning off, as well as provide proper maintenance to your system.

Taking Time to Maintain Your System

Maintaining your equipment is the best way to ensure that it works properly and runs efficiently. Cleaning or changing air filters regularly is one of the easiest and most important tasks you can do to keep your furnace functioning correctly. It is also important to clean the vents and register, to ensure proper airflow and prevent dust buildup.

It is also recommended that you pursue yearly maintenance on your furnace. A licensed technician can service and inspect your furnace, checking the components, as well as internal and external connections. This simple task can prevent unexpected breakdowns and costly repairs later on.

Final Thoughts

Dealing with a furnace that won't turn off can be a frustrating experience for any homeowner. Taking time to identify and correct common issues, such as a problematic thermostat, clogged air filter, and blocked vents can help you restore the functionality of your system.

However, if these tasks do little to remedy your issue, it is important to contact a licensed technician to assess your system and find a proper solution. Proper maintenance to your heating and cooling system plays an integral role in the longevity of the system and can help avoid costly repairs down the road.

If you wish to read more information about Furnace not turning off, please feel free to visit AC Installation & Repair website or call Local Reliable Appliance Repair at (866) 516-1222.

Why Your Furnace Won't Turn Off
Why Your Furnace Won't Turn Off
Why Your Furnace Won't Turn Off

Furnace Not Turning Off

Manufacturer and local appliance or HVAC technician recommendations for preventive action to avoid Furnace not turning off issues in San Diego can include the following:

Check Ventilation System

The first step is to check the ventilation system of your furnace. If the ventilation system is blocked, the furnace won't be able to get the air it needs to run and will eventually shut off. It is important to make sure that the exterior vents are free of debris and that the interior ducts and filters are clean and free of obstructions.

Inspect Wiring

The second step is to inspect the wiring of your furnace. If the wiring is damaged or loose, it could be preventing the furnace from turning off correctly. Make sure to call a professional to check the wiring and to ensure that it is functioning properly.

Test Thermostat Sensors

The third step is to test the thermostat sensors. A faulty sensor can cause the furnace to keep running even after the desired temperature has been reached. Have your thermostat's sensors tested by a professional if you suspect that they may be malfunctioning.

Check Ignition System

The fourth step is to check the ignition system. If the ignition system is not working correctly, it could be causing the furnace to keep running. Have a professional check the ignition system and make sure it is operating properly.

Inspect Heat Exchanger

The fifth step is to inspect the heat exchanger. If the heat exchanger is cracked or warped, the furnace won't be able to turn off correctly. Make sure to have a professional check the heat exchanger to ensure that it is in good condition.

By following these preventive actions, homeowners in San Diego can avoid Furnace not turning off issues and ensure that their heating system is functioning properly.

Furnace Not Turning Off – Repair and Installation Costs in San Diego

Identifying the underlying problem and finding the right solution for a broken furnace is essential for any comfort and safety. If your furnace in San Diego won’t “turn off,” you can trust the reliable and experienced professionals at Local Reliable Appliance Repair (866) 516-1222 to provide you with the best repair services.

The average cost of repairing a "furnace not turning off" issue in San Diego often depends on the parts that need to be replaced and the specific part numbers involved. The more complicated the repair job, the higher the cost. However, typically, a simple fix for this type of problem can range from $200 – $300. Installing a new furnace can cost up to $5,000 or more.

Below is a list of some commonly replaced parts when dealing with a "furnace not turning off" issue:
* Thermocouple: $20 – $45
* Malfunctioning circuit board: $100 – $200
* Blower motor: $200 – $500
* Blower control board: $100 – $200
* Ignition control module: $150 – $300
* Flame sensor: $30 – $45
* Heat pump: $500 – $2,000

Labor costs for the repair and installation of furnaces can vary. Los Angeles contractors typically charge between $200 and $350 for installation. Repair jobs are typically around $150 per hour. Any materials necessary for the repair and installation may include screws, wiring, insulation, piping, and more. The cost of materials will be determined by the parts required for the job.

If you require assistance with a "furnace not turning off" issue in San Diego, you can count on the experienced team at Local Reliable Appliance Repair (866) 516-1222 to provide you with the best repair and installation services.

What to Do When Your Furnace Won't Turn Off

If you've ever experienced a furnace that won't turn off, you know how frustrating and inconvenient it can be. Thankfully, there is help available. Local Reliable Appliance Repair can save the day.

Reliable is a local San Diego HVAC and appliance repair family-owned business. They provide same-day services for appliance and HVAC repair and installations. As a first-time customer, you can get $25 off labor.

Reliable employs highly trained technicians, each with a minimum of 5 years experience in the HVAC industry. Their technicians are knowledgeable in dealing with Furnace not turning off issues, and always offer fair and affordable pricing. What's more, the company is licensed and insured, giving you the confidence that the problem will be taken care of correctly.

So, if your Furnace won't turn off, don't hesitate. Contact the friendly professionals at Local Reliable Appliance Repair at (866) 516-1222 right away. Let them take care of your HVAC issue and make sure it won't happen again. You'll be relieved to have your warm, cozy home back in no time.



Why is my Furnace Not Turning Off?

A furnace that won’t turn off typically indicates there is an issue with the thermostat, heat anticipator, stop and limit switch, or they are not functioning properly. In most cases, one of these four will require minor replacement or undergoing a thorough inspection and diagnosis to determine the root cause of the issue.

What is the Heat Anticipator?

The heat anticipator is the small device found in the thermostat. It works by using a small electric current to determine when the thermostat is satisfied. The reduction in current will inform the thermostat to close lower limit circuits and turn off the furnace.

Could a Dirty or Faulty Thermostat be the Issue?

Yes. When a thermostat is dirty, worn, or damaged, it can fail to turn off your furnace. Make sure to clean the thermostat, replace the batteries, and see if this resolves the issue. If not, it’s best to replace the thermostat.

What Does a Stop and Limit Switch do?

The stop and limit switch is a safety feature used to turn off the furnace if the temperature gets too high or too low. If they malfunction, they can keep the furnace from energizing or won’t turn off.

If you're having difficulty with why your furnace won't turn off, professionals suggest calling Local Reliable Appliance Repair at (866) 516-1222 for reliable and quality service.