Generac home backup generators are renowned for their reliability and efficiency. However, like all mechanical devices, they can encounter issues, one of which is the RPM sense loss error. This error is a critical one as it indicates a problem with the generator’s ability to sense its own rotational speed, which is vital for its operation.
What is Generac Home Backup Generator RPM Sense Loss Error?
The RPM sense loss error in Generac home backup generators is typically indicated by error codes such as 1501, 1505, 1511, and 1515. This error occurs when the generator’s control panel cannot detect the rotational speed of the engine. The RPM (Revolutions Per Minute) sensor plays a crucial role in monitoring the engine’s speed to ensure it operates within the safe and efficient range. When this sensor fails or encounters issues, it triggers the RPM sense loss error.
Why Does RPM Sense Loss Error Occur?
Several factors can lead to an RPM sense loss error in Generac generators. Common causes include:
- Battery Issues: A bad, dead, improperly connected, or a battery with loose or dirty terminals can cause this error.
- Starter Contactor Problems: Issues with the starter contactor, such as loose connections, can trigger this error.
- Starter Motor Issues: Problems with the starter motor or its connections can lead to RPM sense loss.
- Ignition Coil Problems: Faulty ignition coils or issues with their connections can cause this error.
- Internal Engine Damage: Though less common, severe internal engine damage can also lead to this error.
How to Fix Generac Home Backup Generator RPM Sense Loss Error
- Check the Battery: Begin by inspecting the generator’s battery. Load test the battery to ensure it’s not just showing normal voltage but actually holds charge under load.
- Inspect the Starter Contactor: Look for any loose connections or signs of damage in the starter contactor.
- Examine the Starter Motor: Check the starter motor and its connections, particularly the small 16 wire.
- Assess the Ignition Coils: Investigate the ignition coils for any signs of damage or connection issues.
- Evaluate Internal Engine Condition: Although rare, check for any signs of internal engine damage if all other causes have been ruled out.
Generac Home Backup Generator RPM Sense Loss Error Prevention and Maintenance: November 22, 2023
Regular maintenance is key to preventing the RPM sense loss error in Generac home backup generators. This includes:
- Regularly servicing the generator.
- Monitoring and maintaining the oil level.
- Using the correct type of oil.
- Replacing the battery every 4-5 years.
