¿Qué provoca el error 0004 de Lennox?

System is overheating. Faulty temperature sensor

¿Cómo se corrige el código de falla 0004 de Lennox?

1. Press the back button to dismiss the pop-up notification. 2. Contact your dealer to resolve the issue. 3. Check system for obvious obstructions or issues. 4. Ensure proper airflow around the unit.

0004

Error code 0004 — High temperature protection

Lennox · Appliance Systems

¿Qué significa 0004 ?

A critical error has occurred related to the system's high temperature protection. A pop-up screen will appear indicating this condition. The error code is displayed as 0004. This notification is critical and may require dealer assistance.

Causas comunes

System is overheating
Faulty temperature sensor

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

1
Press the back button to dismiss the pop-up notification.
2
Contact your dealer to resolve the issue.
3
Check system for obvious obstructions or issues.
4
Ensure proper airflow around the unit.

Ver todos los códigos en este manual (8)

Datos técnicos verificados. Última actualización: April 2026

Fallas relacionadas

Schedule hold permanentlySchedule hold permanently — Schedule overridden indefinitely Schedule hold until next periodSchedule hold until next period — Schedule temporarily overridden blue flamesBlue flames icon — System is cooling

Fuente: Lennox Appliance Systems

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