Alarm 135 — Advanced Airflow: No Supply Airflow Detected

What does Alarm 135 mean?

This advanced airflow alarm is triggered if the RPM feedback of the blower is less than 50 RPM, indicating that no supply airflow is being generated.

• Blower motor failure.
• Blower belt is broken or disconnected.
• Obstruction preventing the blower from spinning.
• Wiring issue to the blower motor.

Click steps to track your progress.

1. 1

   Check if the blower motor is running.

2. 2

   Inspect the blower belt for damage or disconnections.

3. 3

   Ensure there are no obstructions in the blower fan.

4. 4

   Verify electrical connections to the blower motor.

5. 5

   If the blower is not functioning, it may require professional servicing.