One of the most common issues with Goodman furnaces is when they fail to ignite. When this happens, it can be a frustrating experience, especially during cold weather. Check out these common reasons why a Goodman furnace won’t ignite.
Common reasons why a Goodman furnace won’t ignite:
Issues with the gas supply
One of the most common reasons a Goodman furnace won’t ignite is issues with the gas supply. Gas is the fuel that powers the furnace, so if there’s an issue with the gas supply, the furnace won’t be able to ignite.
Check the gas valve to ensure it’s in the “ON” position. If not, turn it on and try to ignite the furnace again.
If you smell gas in your home, immediately turn off the gas supply to your furnace and call a professional to inspect the furnace and the gas lines.
Dirty air filters
Another reason why a Goodman furnace won’t ignite is because of dirty air filters. Air filters remove dirt, dust, and other particles from the air circulated through your home. If the air filters become clogged, they can restrict airflow, which can cause the furnace to shut down or not ignite.
You should replace your air filters at least once every three months to ensure they’re clean and functioning properly.
High limit switch has been tripped
The high-limit switch is a safety feature that shuts off the furnace when it becomes too hot. If this switch is tripped, the furnace won’t be able to ignite.
One of the most common reasons why the high limit switch is tripped is because of restricted airflow caused by dirty air filters or a malfunctioning blower motor.
You can reset the high-limit switch by turning off the power to the furnace, waiting a few minutes, and turning it back on. However, if the switch is tripped frequently, you may need to call a professional to inspect the furnace.
Improper ignition sequence
The ignition sequence is a process that the furnace goes through to ignite the gas and start heating your home. If any part of the ignition sequence is interrupted, the furnace won’t be able to ignite. A faulty igniter or a malfunctioning control board can cause this.
Suppose you suspect that the ignition sequence is the issue. In that case, it’s recommended that you call a professional to inspect the furnace and make any necessary repairs.
Draft issues
Finally, draft issues can also cause a Goodman furnace to not ignite. Drafts can occur when there’s a ductwork leak, or the chimney isn’t functioning properly. The furnace won’t get enough oxygen to ignite the gas when this happens.
Suppose you suspect that draft issues are the problem. In that case, it’s recommended that you call a professional to inspect the furnace and ductwork.
A Goodman furnace that won’t ignite can be a frustrating experience, especially during the colder months. However, it’s important to identify the root cause of the problem to ensure that it’s fixed properly and that your furnace is working efficiently. It’s recommended that you call a professional to inspect and repair the furnace. By doing so, you’ll be able to enjoy a warm and comfortable home once again.
