Categories
- AC Filters
- AC Repair
- Air Conditioner Maintenance
- Air Conditioner Repair
- Air Conditioners
- Air Conditioning Services
- Air Quality
- Cleaning Tips
- Cooling
- Duct System
- Ducted Air Conditioner
- Ductless Air Conditioner
- Emergency Repairs
- Energy Costs
- Expert Help
- Fans
- FAQ
- Filters
- Fireplaces
- Fun
- Furnace Installations
- Furnace Repairs
- Furnaces
- Gas Fireplaces
- Gas Line
- Gas Line Installations
- Heat Pumps
- Heating
- Heating and Cooling
- Heating Contractors
- heating system
- Heating Technicians
- Humidity
- HVAC
- HVAC Contractors
- HVAC experts
- HVAC Noises
- HVAC professionals
- HVAC Repairs
- HVAC Service
- Insulation
- Maintenance
- Natural Gas
- Pestibulum molestieenean
- Saving Money
- Water
- Water Heaters
- Work
[BACK]
Furnace Ignition Failure
Posted On: September 22, 2024
Furnace ignition failure is a common issue that can prevent your heating system from working properly. There are several potential causes for this problem, and understanding them can help diagnose and resolve the issue efficiently. Here are some of the common reasons for furnace ignition failure:
1. Dirty or Faulty Igniter
The igniter is responsible for lighting the gas in your furnace. Over time, it can become dirty or wear out, preventing the furnace from igniting. Cleaning or replacing the igniter might be necessary.
2. Clogged Air Filter
A dirty air filter restricts airflow to the furnace, causing it to overheat and shut down. This can lead to ignition failure if the furnace overheats before ignition can take place.
3. Gas Supply Issues
If there's a problem with the gas supply, such as a closed valve, low pressure, or a malfunctioning gas line, the furnace won’t ignite. Ensuring that gas is flowing to the furnace is crucial.
4. Faulty Flame Sensor
The flame sensor detects whether the furnace's burner is lit. If it is dirty or defective, the sensor may shut down the furnace as a safety precaution, preventing ignition.
5. Malfunctioning Thermostat
If the thermostat is not communicating properly with the furnace, it might not signal the furnace to start the ignition process. Checking and recalibrating or replacing the thermostat can resolve this issue.
6. Tripped Circuit Breaker
A furnace requires power to ignite. If the circuit breaker has tripped, the furnace won’t receive the necessary power, leading to ignition failure.
7. Blocked Vents or Chimney
Blockages in the exhaust system, including the vents or chimney, can cause ignition issues because the furnace needs proper airflow for combustion. Clearing any obstructions can resolve this.
8. Pilot Light Issues (Older Furnaces)
In older furnace models with a pilot light, if the pilot goes out or is weak, the furnace won’t ignite. Reigniting the pilot or adjusting it might be necessary.
9. Control Board Problems
The control board is the furnace’s “brain,” managing various functions, including ignition. A malfunctioning control board may fail to initiate the ignition process.
Solutions for Ignition Failure:
- Check the air filter and replace if dirty.
- Ensure that the gas valve is open and the supply is normal.
- Clean the flame sensor and igniter if they are dirty.
- Reset the circuit breaker if it’s tripped.
- Inspect the thermostat to ensure it’s working correctly.
In most cases, if the issue persists, it’s best to contact a professional HVAC technician for repair. They will be able to diagnose and fix any deeper issues causing the furnace to fail ignition.
[BACK]
See What Our Customers Are Saying:
Jan 1, 2015
Dave was great in helping me get the proper units for my property, as well as getting them installed. The installers arrived when they said they would, and completed the project on time, and professionally. If I needed another furnace, I would use Dave again.
Jan 1, 2015
I have known Greg and Grant Dainty for many years and have used their company for my house and business. I recommended them also for my parents and sister and they all have been very satisfied with the quality of work for a reasonable price. I just recently had them install a new HVAC system in an older house and was very pleased with their work. Craig in Pickering. After meeting with various heating and air conditioning contractors I was referred to Twin Tech Heating and Cooling through a family member. Greg and Grant arrived at my home and provided me with an estimate and a plan as to how they were going to remove and replace my furnace and air conditioner. On the day of install Greg and Grant arrived at my home on time and were very professional and extremely courteous as to any questions or concerns that I had. The removal and install was truly professional and the attention to detail was exactly what I was looking for. Ive seen many installs from other contractors and I couldnt be any happier to have had such a clean looking install. The sheet metal work, ducting and venting all look fantastic. Upon completion Greg and Grant left me feeling extremely happy and very fortunate of a job well done. Thanks again Twin Tech!!
Jan 1, 2015
My old furnace had finally broken down for the last time when contacted twintech to have a new furnace installed They were prompt, knowledgeable and very reasonably priced. They did such a great job i tell all my friends and family about this company.
Jan 1, 2015
To whom it may concern, I recently had TwinTech (Greg and Grant Dainty) replace my furnace and service both my gas fireplaces and air conditioning unit. They were professional, courteous and very fair in their pricing. I would gladly recommend TwinTech to anyone needing work done. I can be contacted at 905-626-XXXX.
Jan 1, 2015
My Fiancé and I have relied on Twintech Heating and Cooling now for the better part of the last 10 years. In that time, Greg has installed a furnace, an air conditioner, and a heat-pump at our residence in Toronto. In each instance Greg and his team were a pleasure to deal with. They were courteous and professional throughout the whole process and the quality of their work is first rate. Our experiences have always been extremely positive and we have referred his services numerous times to our friends and family. Without hesitation, I would recommend Greg and TwinTech Heating and Cooling to anyone looking to service or replace their existing heat/AC equipment
Related Links:
oshawa gas furnace problems, ac service call, pickering hvac prices, local ac services, ajax furnace inspection, ac repair services, whitby furnace replacement, furnace repairs pickering, oshawa hvac furnaces, central ac service, ac unit maintenance, pickering gas furnace problems, ac installation near me, ajax hvac repair, hvac repairs, ac contractors, ac repair and service, whitby furnaces, residential furnace, residential ac repair, pickering hvac furnace, pickering furnace service, pickering furnaces, oshawa furnace inspection, oshawa furnaces, nearby ac repair,