Westinghouse 2-Outlet Timer Instructions: A Comprehensive Guide
This guide provides detailed instructions for the Westinghouse TM263 2-outlet digital timer. Learn to program on/off schedules, utilize the manual override, and understand the light sensor functionality for automated control of your appliances.
Understanding the Westinghouse TM263 Timer
The Westinghouse TM263 is a 2-outlet daily digital timer designed for convenient control of household appliances. This timer, also referenced as model H28426, allows users to automate lighting, fans, and other devices, promoting energy savings and enhanced home security. It features a user-friendly interface with clear buttons for programming on/off schedules.
A key aspect of the TM263 is its ability to operate in three modes: On, Off, and Auto. In Auto mode, the timer follows the programmed schedules. The inclusion of a built-in photo cell enables dusk-to-dawn operation, automatically turning lights on at dusk and off at dawn, or within a 1-12 hour window after dusk. This functionality is particularly useful for outdoor lighting.
The timer’s digital display provides a clear view of the current time and programmed settings. It’s important to note that optimal light sensor performance requires placement at least 6ft (1.8m) away from light sources to avoid interference. The TM263 is a versatile tool for automating your home environment.
Key Features of the 2-Outlet Digital Timer
The Westinghouse 2-outlet digital timer (TM263/H28426) boasts several key features designed for ease of use and versatility. Primarily, it offers two independently controllable outlets, allowing for simultaneous automation of different appliances. The digital programming capability enables precise scheduling of on/off cycles, eliminating the need for manual operation.
A standout feature is the integrated photo cell, facilitating dusk-to-dawn functionality. Users can configure the timer to automatically activate at dusk and deactivate either at dawn or after a pre-set duration (1-12 hours) post-dusk. This is ideal for exterior lighting and security. The timer also includes a manual override function, providing instant control with On/Off/Auto settings.
Furthermore, the clear digital display simplifies programming and monitoring. The timer’s robust construction ensures durability, while its compact design allows for discreet placement. It’s a practical solution for energy conservation and enhancing home automation, offering convenience and peace of mind.
Initial Setup and Safety Precautions
Before operating your Westinghouse 2-outlet timer, ensure proper setup and adherence to safety guidelines. First, select a suitable location – indoors, dry, and well-ventilated. Avoid areas exposed to direct sunlight or extreme temperatures. Plug the timer directly into a grounded outlet; do not use extension cords or adapters.

Crucially, maintain a minimum distance of 6 feet (1.8 meters) between the timer and any light sources when utilizing the dusk-to-dawn feature. Nearby bulbs can interfere with the light sensor’s accuracy. Verify that the appliances plugged into the timer do not exceed its maximum wattage capacity to prevent overheating and potential fire hazards.
Always disconnect power before cleaning the timer – use a dry cloth only. Never disassemble or attempt to repair the device yourself. If the timer malfunctions, discontinue use and consult the warranty information for customer support. Prioritize safety to ensure reliable and long-lasting performance.
Programming the Timer: Basic On/Off Schedules
To program basic on/off schedules on your Westinghouse TM263 timer, begin by pressing the “Program” button. Use the “Hour” and “Minute” buttons to set the desired start time for the first on cycle. Then, press “Day” to select the days of the week you want this schedule to repeat – options include individual days or pre-set groups like weekdays or weekends.
Next, press “On” to confirm the on-time setting. The display will then prompt you to set the off-time. Again, use the “Hour” and “Minute” buttons to specify the desired off time, and press “Day” to select the corresponding days. Press “Off” to confirm.
You can program multiple on/off cycles to create a customized schedule. Repeat the process for each cycle. Remember to press “Program” to initiate a new schedule. Finally, ensure the timer is set to “Auto” mode for the programmed schedule to activate. Review your settings carefully for accurate operation.
Using the Manual On/Off/Auto Function
The Westinghouse TM263 timer offers a convenient Manual On/Off/Auto function for overriding programmed schedules or controlling outlets directly. To manually turn an outlet “On”, simply press the “ON/OFF/AUTO” button until the display shows “On”. The outlet will remain on continuously, disregarding any programmed settings.

Similarly, to manually turn an outlet “Off”, press the “ON/OFF/AUTO” button until the display shows “Off”. This will immediately cut power to the outlet, again overriding any scheduled operations. This is useful for temporary control or when a programmed event is not desired.
To return to the programmed schedule, press the “ON/OFF/AUTO” button until the display shows “Auto”. The timer will then revert to following the pre-set on/off times and days. This function provides flexibility and immediate control alongside the automated scheduling capabilities of the timer.
Setting Schedules for Dusk-to-Dawn Operation
The Westinghouse TM263 timer’s photo cell functionality allows for automated operation based on ambient light levels, ideal for outdoor lighting. To program dusk-to-dawn operation, access the scheduling menu and select the desired outlet. Choose the “Dusk-to-Dawn” setting, and then specify an offset time – from 1 to 12 hours after dusk when you want the outlet to turn off.
This offset is crucial for customizing the runtime. For example, a 4-hour offset will turn the lights off four hours after dusk. The timer utilizes its built-in light sensor to detect sunset and automatically activate the outlet. Similarly, it monitors for sunrise to deactivate the outlet, or after the specified offset period.
Ensure the light sensor isn’t obstructed and is positioned correctly (see “Optimizing Light Sensor Placement”). This feature provides energy savings and enhanced security by automatically controlling lights based on natural daylight patterns.
Understanding the Light Sensor Functionality
The Westinghouse TM263 timer incorporates a built-in light sensor enabling dusk-to-dawn operation. This sensor detects ambient light levels, triggering the timer to automatically turn connected devices on at dusk and off at dawn, or based on a programmed offset. The sensor’s primary function is to mimic natural daylight patterns, providing convenient and energy-efficient control of outdoor lighting and other applications.
However, the sensor’s accuracy is paramount. External light sources, such as porch lights or streetlights, can interfere with its readings, potentially preventing the timer from activating or deactivating as intended. Therefore, careful placement is essential. The sensor measures light intensity, not just the presence or absence of sunlight.
Understanding this nuance is key to successful dusk-to-dawn scheduling. The timer’s programming allows for adjustments to compensate for minor interference, but optimal sensor placement remains the most effective solution.
Optimizing Light Sensor Placement
To ensure accurate dusk-to-dawn operation with your Westinghouse TM263 timer, strategic light sensor placement is crucial. Avoid positioning the timer where it’s directly exposed to artificial light sources like porch lights, streetlights, or even reflections from brightly lit windows. These external lights can falsely trigger the sensor, preventing it from correctly detecting natural dusk and dawn;

The recommended distance between the timer and any light source is at least 6 feet (1.8 meters). This minimizes interference and allows the sensor to accurately measure ambient light levels. Consider mounting the timer in a shaded location, shielded from direct illumination. Ensure the sensor has an unobstructed view of the sky for optimal performance.

Experiment with different locations if initial placement proves unreliable. A slight adjustment can significantly improve the sensor’s accuracy and ensure your lights turn on and off as scheduled, maximizing energy savings and convenience.
Programming Multiple On/Off Cycles
The Westinghouse TM263 timer allows for programming several on/off cycles within a 24-hour period, offering versatile control over connected appliances. To set multiple cycles, repeatedly utilize the “Set” and “Hour/Minute” buttons after establishing your initial on/off time. Each press of “Set” will prompt you to define another cycle, building a customized schedule.
Remember to confirm each cycle by pressing “Set” again after setting the desired on and off times. The timer will store these cycles sequentially, activating them according to the programmed schedule. This feature is ideal for simulating occupancy when away from home or for managing appliances with varying operational needs throughout the day.
Review your programmed schedule carefully to ensure accuracy. Incorrectly set cycles can lead to unexpected appliance behavior. The timer’s display will typically cycle through the programmed times, allowing for easy verification of your settings.

Adjusting Timer Settings for Different Appliances
When using the Westinghouse TM263 timer with diverse appliances, consider their specific power requirements and operational characteristics. For lights, the timer functions seamlessly, controlling illumination based on your programmed schedule or the light sensor. However, appliances with motors or sensitive electronics may require careful consideration.
Avoid using the timer with appliances exceeding its maximum wattage rating to prevent damage or fire hazards. Regularly check the appliance’s power consumption and ensure it remains within the timer’s limits. For devices prone to voltage fluctuations, a surge protector is recommended in conjunction with the timer.

Certain appliances may benefit from shorter on/off cycles to conserve energy or prolong their lifespan. Experiment with different settings to find the optimal configuration for each connected device, maximizing efficiency and performance.
Troubleshooting Common Issues
If your Westinghouse TM263 timer isn’t functioning as expected, several common issues can be addressed. First, verify the power supply to the timer itself; ensure it’s securely plugged into a working outlet. If the display is blank, try resetting the timer – instructions are available in the user manual.
For scheduling problems, double-check the programmed on/off times and days. Incorrect settings are a frequent cause of unexpected behavior. If the light sensor isn’t working, confirm it’s unobstructed and at least 6ft (1.8m) away from any light source. Clean the sensor gently if necessary.

If appliances aren’t turning on/off as scheduled, ensure they are compatible with the timer’s wattage capacity. A tripped circuit breaker could also be the culprit. If issues persist, consult the full user manual or contact Westinghouse customer support for further assistance.

Resetting the Timer to Factory Defaults
Occasionally, you may need to reset your Westinghouse TM263 2-outlet timer to its original factory settings. This is useful if you’re experiencing persistent errors or want to start fresh with a new programming schedule. The exact procedure can vary slightly, so consulting your specific model’s user manual is crucial.
Generally, resetting involves holding down a specific combination of buttons – often the ‘ON/OFF/AUTO’ and ‘HOUR’ or ‘MINUTE’ buttons – for a designated period, typically 5-10 seconds. The display should indicate a reset confirmation, such as flashing or returning to the default time.
Important: Resetting will erase all previously programmed schedules and settings. After resetting, you’ll need to re-enter your desired on/off times, days, and any light sensor preferences. Refer to the programming sections of this guide to configure the timer according to your needs.
Downloading User Manuals and Guides
Accessing the official Westinghouse user manual for your TM263 2-outlet timer is essential for comprehensive understanding and troubleshooting. These manuals provide detailed instructions, safety precautions, and specifications beyond what’s covered in quick start guides.
You can typically download the PDF version of the manual directly from the Westinghouse website. Search for “Westinghouse TM263 manual” or navigate to their support section and locate the Timer Devices category. Several third-party websites also archive user manuals, but always prioritize the official source for accuracy.
The manual will cover all aspects of operation, including programming schedules, utilizing the light sensor, understanding error codes, and performing a factory reset. Keep a digital copy readily available for future reference, ensuring you always have access to the complete guide for your Westinghouse timer.
Available Westinghouse Timer Models (Beyond TM263)
While the TM263 is a popular choice, Westinghouse offers a range of timer models catering to diverse needs. Beyond the basic 2-outlet digital timer, you’ll find options with varying outlet counts, enhanced features, and indoor/outdoor capabilities.
Exploring the broader Westinghouse timer lineup reveals models like the H28426, often referenced alongside the TM263 in documentation. Other models may include timers specifically designed for holiday lighting, offering dedicated modes and extended programming options. Some advanced timers incorporate smart home connectivity, allowing remote control via smartphone apps.
When considering alternatives, evaluate your specific requirements – the number of devices you need to control, the desired level of automation, and whether you require weather-resistant construction. Checking the Westinghouse website or authorized retailers will provide a current overview of available models and their respective features.
Power Consumption and Energy Saving Tips
The Westinghouse TM263 timer itself consumes a minimal amount of power, typically less than 2 watts in standby mode. However, the real energy savings come from automating the devices plugged into it. By scheduling lights, fans, or appliances to operate only when needed, you can significantly reduce your electricity bill and environmental impact.
Utilize the timer’s dusk-to-dawn functionality with LED lighting for outdoor security, eliminating wasted energy during daylight hours. Program appliances like space heaters or window AC units to operate only during occupied periods. Consider using the timer with holiday lights, automatically turning them on at dusk and off at a set time, preventing overnight energy waste.
Regularly review and adjust your timer schedules to optimize energy usage based on seasonal changes and your lifestyle. Small adjustments can add up to substantial savings over time, making the TM263 a valuable tool for energy conservation.
Timer Specifications and Technical Details
The Westinghouse TM263 2-Outlet Digital Timer operates on standard 125V AC power, with a maximum load capacity of 1800 watts. Each outlet can independently control devices within this limit. It features a built-in light sensor for dusk-to-dawn operation, responding to ambient light levels for automated control.
The timer offers up to 8 on/off programs, allowing for complex scheduling. Programming is retained even during power outages thanks to its internal memory. Operating temperature ranges from 32°F to 104°F (0°C to 40°C). The unit’s dimensions are approximately 5.5 x 3.3 x 1.6 inches, and it weighs around 0.6 pounds.
The light sensor has a detection range of approximately 5 lux. The timer utilizes a quartz crystal oscillator for accurate timekeeping. It’s designed for indoor use only and should be protected from direct moisture. The housing is constructed from durable plastic for long-lasting performance.
Warranty Information and Customer Support
Westinghouse offers a limited one-year warranty on the TM263 2-Outlet Digital Timer, covering defects in materials and workmanship from the date of purchase. This warranty does not cover damage resulting from misuse, abuse, or unauthorized modifications. Proof of purchase is required for all warranty claims.
For customer support, you can visit the Westinghouse website and navigate to their support section. There, you’ll find frequently asked questions (FAQs), troubleshooting guides, and downloadable manuals. Alternatively, you can contact Westinghouse customer service via phone or email. Response times may vary depending on the volume of inquiries.
The website provides access to a comprehensive library of user manuals and guides for various Westinghouse products, including the TM263 timer. Online resources often offer quicker solutions to common issues. Keep your model number (TM263) handy when contacting support for efficient assistance. Warranty claims are typically processed directly through the retailer where the product was purchased.
Comparing Westinghouse Timers to Competitors
When considering 2-outlet timers, Westinghouse’s TM263 competes with brands like Intermatic, GE, and Leviton. Westinghouse often positions itself as offering a balance of features and affordability. Competitors may specialize in either basic functionality at lower price points or advanced smart home integration at higher costs.

Compared to Intermatic, Westinghouse timers generally offer a more user-friendly interface, while Intermatic often focuses on heavy-duty applications. GE timers are known for their reliability and brand recognition, but can be pricier. Leviton provides a wider range of smart timer options, appealing to tech-savvy users.
The TM263’s key advantage lies in its integrated light sensor for dusk-to-dawn operation, a feature not always standard on competitor models in the same price range. However, some competitors offer Wi-Fi connectivity and app control, which the TM263 lacks. Ultimately, the best choice depends on individual needs and budget, weighing features like programmability, durability, and smart home compatibility.
