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908
OVER TEMPERATURE FAULT
Otis · DSD 412 Elevator System
¿Qué significa 908 ?
The calculated SCR junction temperature is above 125 degrees Centigrade. This is derived from the thermistor heat sink measurement combined with the heating effects of measured armature output current on the SCRs. This fault will not shut down the drive.
Causas comunes
- Ambient temperature too high.
- Clogged air filter in cabinet.
- Clogged heat sinks.
- Cooling fan failure.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Check ambient temperature for high levels and address the underlying cause.
- 2
Clean or replace the air filter in the cabinet.
- 3
Clean the heatsink fins.
- 4
Replace defective cooling fan(s) in the power cube.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Otis DSD 412 Elevator System