Error Code Hot Surface Ignitor Open
Lennox SLP98UHV Error Code Hot Surface Ignitor Open: Hot Surface Ignitor Open
TL;DR
The hot surface ignitor (HSI) has been sensed as open circuit. The ignitor may be cracked or burned out and unable to heat up to ignite the gas. Disclaimer
This article is for informational purposes only and does not guarantee the accuracy or completeness of the information provided. Always turn off power and gas supply before attempting any repairs. If you smell gas, leave immediately and call your gas company. Consult a licensed HVAC technician for diagnosis and repair. Any actions taken based on this information are at your own risk. What Does Code Hot Surface Ignitor Open Mean?
The hot surface ignitor (HSI) has been sensed as open circuit. The ignitor may be cracked or burned out and unable to heat up to ignite the gas.
When to Call a Professional
Contact a licensed HVAC technician if:
- Basic troubleshooting did not resolve the error
- You smell gas at any point during the process
- You are not comfortable working around gas lines or electrical components
- The unit needs a gas valve, control board, or motor replacement