90 or 99 - Air intake or vent exhaust blocked

¿Qué significa 90 or 99 ?

These codes indicate that the air intake or vent exhaust openings are blocked. Proper airflow is crucial for safe and efficient operation.

• Obstructions (leaves, nests, debris) blocking vents
• Improperly connected vent pipes
• Vent terminal too close to obstructions

Haga clic en los pasos para seguir su progreso.

1. 1

   Visually inspect the air intake and vent exhaust openings for any blockages.

2. 2

   Carefully remove any debris found.

3. 3

   Ensure vent pipes are securely connected and not damaged.

4. 4

   Verify that the vent terminal meets clearance requirements (see page 27).