Common American Standard Furnace Error Codes: Troubleshooting Tips
Penguin HVAC | Air Conditioning and Heating
Common American Standard Furnace Error Codes: Troubleshooting Tips
For homeowners with an American Standard furnace, understanding the system's error codes can provide valuable insights into potential issues and possible solutions. These error codes serve as a diagnostic tool, helping both homeowners and technicians pinpoint the cause of any malfunction. In this article, we'll explore the most common error codes for American Standard furnaces and what they indicate.
1. Flashing Red Light
- Continuous Flash: This usually indicates that the furnace is operating correctly. It's the standard operation code and requires no action.
- Two Flashes: This indicates a system lockout caused by a lack of flame. This could be due to a problem with the gas supply, flame sensor, or ignitor.
- Three Flashes: This signifies an open pressure switch. It could be due to a blocked vent pipe or induced draft motor malfunction.
- Four Flashes: An open high-temperature limit switch or roll-out switch indicates this error. The causes could be a dirty filter, blocked vents, or a malfunctioning blower motor.
2. Flashing Green Light
- Continuous Flash: This denotes a proper grounding of the furnace. It is a standard code indicating no action is required.
- Two Flashes: This error code suggests an external lockout, which means the furnace will retry to start after a one-hour delay.
- Three Flashes: This points to low flame sense signal, which may indicate a dirty or faulty flame sensor.
- Four Flashes: This suggests that the modulating gas valve is malfunctioning.
3. Flashing Yellow Light
- Continuous Flash: It suggests the furnace is in standby mode, awaiting further instructions from the thermostat.
- Two Flashes: This error code points to a marginal flame sense signal, indicating that cleaning or replacement of the flame sensor might be necessary.
4. Flashing Orange Light
- Continuous Flash: It suggests the furnace control board is set to the cooling mode.
5. Flashing White Light
- Continuous Flash: This indicates the furnace control board is set to the heating mode.
What to Do When You Encounter an Error Code?
- Safety First: Before troubleshooting or attempting any repairs, ensure the power is off. Furnaces are intricate systems, and working with them can pose risks if proper precautions are not taken.
- Check Basic Elements: Sometimes, the issue can be resolved by checking simple elements like the thermostat settings, circuit breaker, or gas valve.
- Clean or Replace the Filter: A dirty filter can cause multiple issues, including reduced airflow and overheating. Regularly inspect and change the filter as needed.
- Call a Professional: If you're unsure about any error code or if the problem persists, it's always best to call a certified HVAC technician. They have the necessary training and expertise to diagnose and fix any issues safely and efficiently.
Conclusion
Being familiar with the error codes on your American Standard furnace can provide peace of mind and a level of preparedness when things go awry. Remember, while some minor troubleshooting can be done by homeowners, more intricate issues should always be left to the professionals. Regular maintenance and prompt attention to error codes will ensure the longevity and efficiency of your furnace system.
If you need help with a furnace repair or new furnace installation, get in touch with us today!
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