Most household furnace units are equipped with a troubleshooting light that is either constantly on or flashes. The troubleshooting lights on a household furnace can indicate a variety of issues.
Here are a few common meanings for furnace troubleshooting lights:
- Red light: A red light on a furnace can indicate a safety issue, such as a malfunction or a problem with the furnace's ignition system. If you see a red light, turn off the furnace and call a professional for repair.
- Green light: A green light on a furnace can indicate that the furnace is operating normally.
- Yellow light: A yellow light on a furnace can indicate a problem with the furnace's ignition system or a malfunction in the furnace's control panel. If you see a yellow light, turn off the furnace and call a professional for repair.
- Flashing light: A flashing light on a furnace can indicate a problem with the furnace's ignition system or a malfunction in the furnace's control panel. If you see a flashing light on your furnace, turn off the furnace and call a professional for repair.
It's important to note that the meaning of the flashing lights on a furnace can vary depending on the make and model of the furnace. If you are unsure of the meaning of a flashing light on your furnace, consult the manufacturer's manual or call a professional for assistance.
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Some common issues that can cause a flashing light on a furnace include:
- A malfunctioning ignition system: If the ignition system is not functioning properly, it can cause the furnace to shut down and display a flashing light.
- A malfunction in the control panel: The control panel of the furnace is responsible for controlling the various functions of the furnace. If there is a problem with the control panel, it can cause the furnace to display a flashing light.
- A problem with the furnace's sensors: The sensors in the furnace are responsible for monitoring the temperature and airflow in the furnace. If there is a problem with one of these sensors, it can cause the furnace to display a flashing light.
- A problem with the furnace's gas valve: The gas valve controls the flow of gas to the furnace. If there is a problem with the gas valve, it can cause the furnace to display a flashing light.
- A problem with the furnace's thermostat: The thermostat is responsible for regulating the temperature in the home. If there is a problem with the thermostat, it can cause the furnace to display a flashing light.
It is important to address any issues with a flashing light on your furnace as soon as possible to ensure the safety and efficiency of your furnace.
It's important to note that the meaning of the troubleshooting lights on a furnace can vary depending on the make and model of the furnace. If you are unsure of the meaning of a light on your furnace, consult the manufacturer's manual or call a professional for assistance.
TRANE FLASHES:
- 2 flash - 1 Hour Lockout
- 3 flash - Pressure Switch
- 4 flash - TCO Open
- 5 flash - Flame W/O Gas
- 6 flash - Rollout Switch Open
- 7 flash - W1 / W2 Swapped
For more error codes visit: https://www.prosolutionsinc.ca/furnace-error-codes/
------ TROUBLESHOOTING -----
Here are the steps for troubleshooting a furnace issue:
- Check the thermostat: Make sure that the thermostat is set to "heat" and that the temperature is set higher than the current room temperature.
- Check the furnace switch: Check the furnace switch to ensure that it is turned on. If it is off, turn it on and wait a few minutes to see if the furnace starts working.
- Check the furnace filter: A dirty furnace filter can restrict airflow and cause the furnace to stop working. Check the filter and replace it if it is dirty.
- Check the fuel source: If your furnace is fueled by natural gas, propane, or oil, make sure that the fuel source is not empty. If the fuel source is empty, refill it and try turning on the furnace again.
- Check the pilot light: If your furnace has a pilot light, make sure that it is lit. If the pilot light is not lit, refer to the manufacturer's instructions for relighting it.
- Check the electrical connections: Make sure that all electrical connections are secure and that the furnace is receiving power. If the furnace is not receiving power, check the circuit breaker or fuse box.
- Check the flue: Make sure that the flue is clear and not blocked by debris. A blocked flue can cause the furnace to stop working.
- Check for leaks: Check for any gas or oil leaks in the furnace. If you smell gas or find a leak, turn off the furnace and call a professional for repair.
- Contact a professional: If you have tried all of the above steps and the furnace is still not working, it may be time to contact a professional heating and cooling technician for further assistance.
