1. Introducción
This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of your Intermatic EI230W Electronic Auto-Off Timer. This device is designed to provide convenient, automatic shut-off for various electrical loads, enhancing energy efficiency and convenience in your home or office.
The EI230W timer offers silent operation and simple push-button controls for preset countdown times, making it an ideal replacement for standard single-pole switches.
2. Información de seguridad
WARNING: RISK OF ELECTRIC SHOCK. This product requires installation by a qualified electrician or trained personnel. Always turn off power at the circuit breaker or fuse box before installation or servicing.
- Lea todas las instrucciones antes de instalar o usar este producto.
- Do not use this timer with loads exceeding its electrical ratings.
- Asegúrese de que todas las conexiones del cableado sean seguras y cumplan con los códigos eléctricos locales y nacionales.
- This device requires a neutral wire for proper operation. If a neutral wire is not present in your switch box, consult a qualified electrician.
- Keep children away from electrical wiring.
3. Producto terminadoview y características
The Intermatic EI230W is an electronic in-wall timer designed for ease of use and silent operation. It features a clean white finish to blend with most decor.

Figure 1: Intermatic EI230W Electronic Auto-Off Timer with faceplate.
Características principales:
- Operación sencilla: Easily select countdown times of 2, 4, 8, or 12 hours with a single button press. No complex programming is required.
- Silent Control: Operates without audible clicking or humming, suitable for quiet environments.
- Aplicaciones versátiles: Ideal for controlling indoor and outdoor lighting, bathroom fans, ventilation fans, and other appliances.
- Fácil instalación: Designed to replace existing single-pole switches. Requires a neutral wire.
- Acabado blanco: Aesthetically designed to integrate seamlessly with standard white wall plates.
4. Configuración e instalación
Follow these steps carefully to install your Intermatic EI230W timer. If you are unsure about any step, consult a qualified electrician.
Herramientas necesarias:
- Destornillador (Phillips y de punta plana)
- Pelacables
- Cinta aisladora
- Volumentage Probador
Pasos de instalación:
- Apagar la energía: Locate the circuit breaker or fuse that controls the switch you are replacing. Turn off the power completely. Use a voltage tester to confirm that the power is off at the switch box.
- Eliminar el interruptor existente: Carefully remove the wall plate and unscrew the existing switch from the electrical box. Gently pull the switch out of the box.
- Identificar cables:
- Cable de LÍNEA (caliente): Typically black, connected to the incoming power.
- Cable de CARGA: Typically black, connected to the light or appliance.
- Cable NEUTRO: Typically white. This timer requires a neutral wire.
- Cable de TIERRA: Generalmente cobre desnudo o verde.

Figura 2: Lado view of the EI230W timer showing the wiring diagram.
- Cablear el temporizador: Connect the wires from the wall box to the corresponding wires on the EI230W timer using wire nuts.
- Conectar el NEGRO wire from the timer to the LINE (Hot) cable.
- Conectar el ROJO wire from the timer to the CARGA cable.
- Conectar el BLANCO wire from the timer to the NEUTRAL cable.
- Conectar el VERDE wire from the timer to the SUELO cable.

Figura 3: Frente view of the EI230W timer without the faceplate, showing terminals.
- Montar el temporizador: Carefully push the wired timer back into the electrical box. Secure it with the provided screws.
- Instale la placa de pared: Attach the decorative wall plate (not included) over the timer.
- Restaurar energía: Vuelva a encender la energía en el disyuntor o en la caja de fusibles.
Video de instalación:
Vídeo 1: Un finalview of Intermatic In-Wall Timers, including electronic models similar to the EI230W, demonstrating features like single-button operation, silent control, and ease of installation. This video highlights the simplicity of use and installation for electronic countdown timers.
5. Instrucciones de funcionamiento
The Intermatic EI230W timer is designed for straightforward operation with a single push-button interface.

Figure 4: Front panel of the EI230W timer with time selection buttons.
Configuración del temporizador:
- Press the main button repeatedly to cycle through the available countdown times: 2 hours, 4 hours, 8 hours, 12 hours.
- The LED indicator next to the selected time will illuminate, confirming your choice.
- The connected load (light, fan, appliance) will turn on and remain on for the selected duration, then automatically turn off.
Función "HOLD":
- To keep the connected load on indefinitely, press the button until the "HOLD" indicator lights up. The load will remain on until you manually turn it off or select a countdown time.
Apagado manual:
- If a countdown time is active or the timer is in "HOLD" mode, press the button until all LED indicators are off. This will turn off the connected load.
6. Mantenimiento
The Intermatic EI230W Electronic Auto-Off Timer requires minimal maintenance.
- Limpieza: To clean the surface of the timer, use a soft, damp Paño. No utilice limpiadores abrasivos, disolventes ni aerosoles directamente sobre la unidad.
- Inspección: Periodically check the timer and wall plate for any signs of damage or loose connections. If any issues are found, turn off the power at the circuit breaker and consult a qualified electrician.
7. Solución de problemas
If you experience issues with your EI230W timer, refer to the following common problems and solutions:
| Problema | Posible causa | Solución |
|---|---|---|
| Timer does not turn on or operate. | No power to the switch box. Cableado incorrecto. Conexiones sueltas. | Verifique el disyuntor o el fusible. Verify wiring connections according to the installation instructions. Ensure all wires are securely connected. |
| Load does not turn off after selected time. | Timer is in "HOLD" mode. Unidad de temporizador defectuosa. | Press the button until all LEDs are off to manually turn off the load, then re-select a countdown time. Si el problema persiste, póngase en contacto con el servicio de atención al cliente. |
| Los indicadores LED no se encienden. | No hay energía en el temporizador. LED defectuoso. | Compruebe la fuente de alimentación y el cableado. If the timer functions but LEDs do not, contact customer support. |
| Timer makes noise during operation. | This electronic timer is designed for silent operation. Any noise indicates a potential issue. | Turn off power immediately and consult a qualified electrician or contact customer support. |
8. Especificaciones
- Número de modelo: EI230W
- Marca: Intermático
- Color: Blanco
- Dimensiones del producto: 1.44" de profundidad x 1.68" de ancho x 4.13" de alto
- Peso del artículo: 0.34 libras (aprox. 5.4 onzas)
- Número de configuraciones: 4 (2, 4, 8, 12 hours)
- Código postal: 078275095298
- Fabricante: Intermático
- Aprobación: UL (Canada and US)

Figure 5: Dimensions of the EI230W timer.
9. Garantía
Intermatic products are designed for durability and reliability. For specific warranty information regarding your EI230W Electronic Auto-Off Timer, please refer to the documentation included with your purchase or visit the official Intermatic website. Typically, Intermatic offers a limited warranty covering defects in materials and workmanship under normal use and service.
10. Soporte
For further assistance, technical support, or to inquire about replacement parts, please contact Intermatic customer service.
- Fabricante: Intermático
- Online Store: Visit the Intermatic Store on Amazon
- Please have your model number (EI230W) and purchase date available when contacting support.