Introduction
The Westek TMDCD60 is a hardwire indoor countdown timer designed to replace a standard wall switch. It provides timed control for lights, fans, heaters, and other devices, automatically turning them off after a selected duration. This manual provides instructions for safe installation, operation, and maintenance of your timer switch.
Safety Information
WARNING: Risk of Electric Shock. Improper installation can lead to serious injury or death. Always turn off power at the circuit breaker or fuse box before beginning installation. Consult a qualified electrician if you are unsure about any part of the installation process.
- This device is for indoor use only.
- Ensure all wiring connections are secure and comply with local electrical codes.
- Do not exceed the electrical ratings of the device.
- A neutral wire is required for installation. Older homes may not have a neutral wire in the switch box.
Package Contents
- Westek TMDCD60 Countdown Timer Switch
- Instruction Manual (this document)
Product Overview
The Westek TMDCD60 timer switch features a single push-button control and LED indicators for selected time settings. It is designed to fit into a standard wall switch box and can be used with a standard rocker wallplate (not included).

Figure 1: Front view of the TMDCD60 timer switch. The face includes a single control button and five LED indicators labeled "10 MIN", "20 MIN", "30 MIN", "60 MIN", and "HOLD".
Installation
- Turn Off Power: Locate the circuit breaker or fuse that controls the switch you are replacing. Turn off the power completely before proceeding. Verify power is off using a voltage tester.
- Remove Existing Switch: Carefully remove the wallplate and unscrew the existing switch from the wall box. Disconnect the wires from the old switch. Note the connections for reference.
- Identify Wires: The Westek TMDCD60 timer requires four wires:
- Black Wire: Hot (Line)
- Red Wire: Load (to the device being controlled)
- White Wire: Neutral
- Green Wire: Ground
Ensure your wall box contains a neutral wire. If not, this timer cannot be installed without running a new neutral wire, which should be done by a qualified electrician.

Figure 2: Back view of the TMDCD60, illustrating the labeled wires for proper connection.
- Connect Wires: Using wire nuts (not included), connect the wires from the wall box to the corresponding wires on the TMDCD60 timer switch:
- Connect the Black wire from the timer to the Hot (Line) wire from the wall box.
- Connect the Red wire from the timer to the Load wire from the wall box (to the light/fan).
- Connect the White wire from the timer to the Neutral wire from the wall box.
- Connect the Green wire from the timer to the Ground wire from the wall box.
- Mount the Timer: Carefully fold the wires into the wall box. The timer is deeper than a standard switch, so ensure there is enough space. Secure the timer switch to the wall box using the provided screws.
- Install Wallplate: Attach a standard rocker wallplate (not included) over the timer switch.
- Restore Power: Turn the power back on at the circuit breaker or fuse box.
Operation
The TMDCD60 timer operates with a single push-button control. Each press cycles through the available countdown settings and the HOLD function.
- Turning On and Setting Timer: Press the control button once to activate the timer. The timer will cycle through the following settings with each subsequent press:
- OFF (no LED lit)
- 10 Minutes (10 MIN LED lights up)
- 20 Minutes (20 MIN LED lights up)
- 30 Minutes (30 MIN LED lights up)
- 60 Minutes (60 MIN LED lights up)
- HOLD (HOLD LED lights up)
The connected device will remain on for the selected duration and then automatically turn off. The corresponding LED will indicate the active setting.
- HOLD Function: To keep the connected device on indefinitely, press and hold the control button for approximately one second until the "HOLD" LED illuminates. In HOLD mode, the device will remain on until you press the button again to turn it off or select a countdown setting.
- Turning Off: To turn off the connected device before the countdown finishes or while in HOLD mode, press the control button until no LEDs are lit.
Maintenance
The Westek TMDCD60 timer switch requires minimal maintenance. To clean the surface, wipe with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure power is off before cleaning.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Timer does not turn on or operate. | No power to the switch. Incorrect wiring. | Check the circuit breaker or fuse. Verify all wiring connections are correct as per the Installation section. Ensure a neutral wire is connected. |
| Connected device does not turn off after selected time. | Timer is in HOLD mode. Incorrect wiring. | Press the button to cycle out of HOLD mode. Recheck load wire connection. |
| LED indicators are not working. | No power to the switch. Unit malfunction. | Check power supply. If power is present and wiring is correct, the unit may be faulty. Contact customer support. |
Specifications
- Model: TMDCD60
- Brand: Westek
- Color: White
- Input Voltage: 120V AC, 60Hz
- Max Load: 15A Resistive, 1000W Tungsten, 500VA Ballast, 1/4 HP Motor
- Timer Settings: 10, 20, 30, 60 minutes, HOLD
- Dimensions: 1"D x 1"W x 1"H (Note: These dimensions typically refer to packaging; the device itself is deeper for in-wall installation.)
- Item Weight: 4.48 ounces
- Mounting Type: Wall
- Switch Style: Rocker Switch
- Neutral Wire: Required
Warranty and Support
This Westek product is covered by a 1-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For technical support or warranty claims, please contact Westek customer service. You can find more information and contact details on the official Westek website or by visiting the Westek Store on Amazon.





