Introduction
Thank you for choosing the CHACON Digital Timer Plug, Model 54021. This device allows you to automate the switching on and off of electrical appliances, helping you save energy and enhance home security by simulating presence. Please read this manual carefully before use to ensure proper operation and safety.
Safety Instructions
- Do not exceed the maximum load of 1800W.
- This device is for indoor use only.
- Do not immerse in water or expose to excessive moisture.
- Do not disassemble or attempt to repair the device. Contact qualified personnel for service.
- Ensure the plug is fully inserted into the wall socket.
- Keep out of reach of children.
Product Components
The CHACON Digital Timer Plug consists of the main unit with a digital display and control buttons. Refer to the images below for component identification.

Image 1: Front view of the CHACON Digital Timer Plug, highlighting the display and control buttons.

Image 2: Side view of the CHACON Digital Timer Plug, showing the power pins for insertion into a wall socket.
- 1. Display: Shows current time, day, and program status.
- 2. CLOCK Button: Used to set the current time and day.
- 3. SET Button: Used to confirm settings or enter programming mode.
- 4. ON/AUTO/OFF Button: Cycles through manual ON, automatic mode, and manual OFF.
- 5. Program Buttons (e.g., DAY, HOUR, MIN): Used for setting specific program times.
- 6. RESET Button: Resets all settings to factory defaults.
Setup
- Initial Charge: Before first use, plug the timer into a wall socket for at least 30 minutes to charge the internal battery. This battery maintains settings during power outages.
- Resetting the Device: Use a pointed object (like a pen tip) to press the RESET button. The display will show all segments, then clear, indicating a successful reset.
- Setting Current Time and Day:
- Press and hold the CLOCK button.
- While holding CLOCK, press the DAY button repeatedly to select the current day (MO, TU, WE, TH, FR, SA, SU).
- While holding CLOCK, press the HOUR button repeatedly to set the current hour (12/24 hour format).
- While holding CLOCK, press the MIN button repeatedly to set the current minute.
- Release the CLOCK button. The time is now set.
Operating Instructions
Programming ON/OFF Cycles
The timer allows up to 140 programs per day/week/groups of days. Each program consists of an ON time and an OFF time.
- Press the SET button once. The display will show "1 ON" (Program 1 ON time).
- Press DAY to select the desired day or group of days for this program. Options include:
- Individual days (MO, TU, WE, TH, FR, SA, SU)
- Weekdays (MO TU WE TH FR)
- Weekend (SA SU)
- All days (MO TU WE TH FR SA SU)
- Other combinations (e.g., MO WE FR, TU TH SA)
- Press HOUR to set the desired hour for the ON time.
- Press MIN to set the desired minute for the ON time.
- Press SET again. The display will show "1 OFF" (Program 1 OFF time).
- Repeat steps 2-4 to set the desired day(s), hour, and minute for the OFF time.
- Press SET to save Program 1 and move to "2 ON" for the next program. Repeat the process for all desired programs.
- To exit programming mode at any time, press the CLOCK button.
Manual Override (ON/AUTO/OFF)
Press the ON/AUTO/OFF button to cycle through the operating modes:
- ON: The connected appliance is continuously ON, overriding all programs.
- AUTO: The connected appliance operates according to the programmed ON/OFF times. This is the standard operating mode.
- OFF: The connected appliance is continuously OFF, overriding all programs.
Random Function
This function is useful for simulating presence when you are away. It randomly switches the connected appliance ON and OFF within a set time window.
- Ensure the timer is in AUTO mode.
- Press the RANDOM button (if available, or a combination like SET + HOUR if not a dedicated button). The display will show "RANDOM".
- The appliance will now turn ON and OFF randomly within a specific time frame (e.g., 6 PM to 6 AM) with varying durations.
- To deactivate, press the RANDOM button again.

Image 3: The CHACON Digital Timer Plug integrated into a kitchen environment, demonstrating its use for automating appliances.

Image 4: A house at dusk with interior lights on, illustrating the security benefit of the random function to simulate occupancy.
Countdown Function
This function allows you to set a specific duration after which the connected appliance will turn ON or OFF.
- Press the COUNTDOWN button (if available, or a combination like SET + MIN).
- Use HOUR and MIN buttons to set the desired countdown duration.
- Press SET to start the countdown. The display will show the remaining time.
- Once the countdown finishes, the appliance's state will toggle (ON to OFF, or OFF to ON).
- To cancel the countdown, press the COUNTDOWN button again.
Maintenance
- Cleaning: Wipe the device with a dry, soft cloth. Do not use abrasive cleaners or solvents.
- Battery: The internal Lithium-ion battery is designed to retain settings during power outages. If the display is blank or settings are frequently lost, ensure the timer is plugged in for sufficient charging. The battery is not user-replaceable.
- Storage: Store the timer in a cool, dry place when not in use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank. | Internal battery is discharged. | Plug the timer into a live wall socket for at least 30 minutes to charge. |
| Appliance does not turn ON/OFF at programmed times. | Timer is not in AUTO mode. Incorrect program settings. Appliance itself is off or faulty. | Press ON/AUTO/OFF until "AUTO" is displayed. Review and correct program settings. Check the appliance's power and functionality. |
| Settings are lost after power outage. | Internal battery is not fully charged or is at end of life. | Ensure the timer is regularly plugged in to keep the battery charged. If the issue persists, the battery may need professional replacement. |
| Random function not working. | Timer not in AUTO mode or random function not activated. | Ensure "AUTO" is displayed. Activate the random function as per instructions. |
Specifications
- Model Number: 54021
- Brand: CHACON
- Power Rating: Max 1800W
- Voltage: 230V, 50Hz (Standard European socket)
- Programs: Up to 140 ON/OFF programs per day/week/groups of days
- Functions: Daily/Weekly Programming, Random Function, Countdown Function, Manual Override
- Battery: 1 Lithium-ion (included, for program backup)
- Dimensions (L x W x H): 5.6 x 7.6 x 16.1 cm
- Weight: 120 grams
- Material: Polyvinyl chloride (PVC)
- Color: White
Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact CHACON customer service directly. Keep your proof of purchase for warranty claims.
Manufacturer: Chacon