Lennox HVAC Error Code E293: How to Fix It

Q: What causes Lennox error code E293?

Error code E293 is caused by a malfunctioning indoor temperature sensor that can no longer accurately detect room temperature. Common causes include sensor aging, dust accumulation, loose connections, or physical damage to the sensor.

Q: Can I still use my Lennox HVAC with error code E293?

While the system may continue to operate, it won't maintain accurate temperature control and may run inefficiently. It's recommended to fix the issue promptly to avoid higher energy bills and ensure proper comfort control.

Q: How much does it cost to replace an indoor temperature sensor?

The sensor itself typically costs $20-50, but professional installation can add $100-200 in labor costs. Many homeowners can replace the sensor themselves with basic tools.

Q: How often should indoor temperature sensors be replaced?

Indoor temperature sensors typically last 10-15 years under normal conditions. However, they may need replacement sooner in dusty environments or if subjected to physical damage.

Abstract

Lennox HVAC error code E293 indicates a faulty indoor temperature sensor that's preventing your system from accurately reading room temperature. This sensor failure can cause your heating and cooling system to run inefficiently or not maintain the desired temperature.