Lennox E295

What does Lennox E295 mean?

E295 indicates the indoor blower motor has tripped on its internal thermal overload protector. The motor's built-in protector opens when winding temperature exceeds a safe threshold. On Lennox communicating systems, this is reported as an over-temperature condition. The blower demand must be satisfied and the motor allowed to cool before the alert clears.

Symptoms

• Indoor blower shuts off during a cooling, heating, or continuous-fan demand.
• E295 or 'ID Blower Over Temperature' shown on the thermostat.
• Supply airflow drops noticeably or stops entirely mid-cycle.
• Alert clears on its own after the motor cools, but returns under load.

Common causes

• Worn motor bearings increasing mechanical drag and winding temperature.
• Excessive duct static pressure forcing the motor to work harder than its rated torque.
• Dirty blower wheel reducing airflow efficiency and increasing motor load.
• Ambient temperature in the equipment room is too high for the motor's cooling capacity.
• Motor operating outside its design static pressure range (above 0.8 in. w.c. total external static).

Diagnostic steps

1. 01

   Allow the motor to cool and check amp draw

   After the alert clears, restart the system and immediately clamp an ammeter on the motor lead. Compare to the nameplate full-load amps. An overload reading confirms the motor is working beyond its rated capacity.

2. 02

   Measure total external static pressure

   Install static pressure probes upstream and downstream of the air handler. The sum must stay within the motor's design range. Readings above 0.8 in. w.c. indicate duct restriction driving up motor load.

3. 03

   Clean the blower wheel

   Remove the blower assembly and clean all blade surfaces. A heavily fouled wheel reduces airflow per RPM, forcing the motor to increase torque and draw more current.

4. 04

   Check motor bearings

   With power off, spin the blower wheel by hand. Resistance, roughness, or end-play in the shaft indicates worn bearings. Replace the motor if bearings are degraded.

5. 05

   Inspect and correct duct system restrictions

   Replace the air filter, open all registers, and check for kinked flexible duct. Reducing static pressure is the most direct fix for motor over-temperature caused by excessive load.

When to call a professional

Replace the indoor blower motor or module if it continues to trip on internal overload after duct restrictions are corrected and the wheel is clean. ECM/variable-speed motor replacement on communicating Lennox systems requires verifying module compatibility and confirming torque-mode configuration. Refer to Lennox Service and Application Note H-17-02 for variable-speed motor replacement procedures.