Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Mi-Heat REV 25300 Digital Programmable Timer. Please read this manual carefully before using the device to ensure safe and efficient operation. Keep this manual for future reference.
Safety Instructions
- Ensure the timer is connected to a properly grounded electrical outlet.
- Do not exceed the maximum load capacity of 8 A / 1800 W. Overloading can cause damage to the device and pose a fire hazard.
- This device is designed for indoor use only. Do not expose it to moisture, water, or extreme temperatures.
- Do not attempt to open or repair the device yourself. Refer all servicing to qualified personnel.
- Keep out of reach of children. The integrated child safety feature helps prevent accidental operation.
- Unplug the timer from the power outlet before cleaning.
Product Overview
The Mi-Heat REV 25300 is a versatile digital timer designed to automate various electrical appliances. It features a clear digital display and multiple control buttons for easy programming.
Image 1: Front view diagram of the Mi-Heat REV 25300 Digital Timer. This diagram illustrates the digital display at the top, showing time and day indicators. Below the display are two rows of gray buttons. The top row includes 'CLOCK', 'S-', 'V-', 'ON', 'AUTO', 'RND', 'OFF', and 'ON/OFF'. The bottom row includes 'SET', 'RESET', and 'C.D.'. At the bottom of the device is a standard electrical socket.
Key Components:
- Digital Display: Shows current time, day, program status (ON/OFF/AUTO), and other indicators.
- Buttons:
- CLOCK: Used to set the current time and day.
- S- / V-: Decrease value or select previous option.
- ON / AUTO / OFF: Select operating mode (Always ON, Automatic, Always OFF).
- RND: Activates/deactivates random function.
- ON/OFF: Manual override for immediate ON/OFF.
- SET: Confirms settings or enters programming mode.
- RESET: Clears all settings and returns to factory defaults.
- C.D.: Activates/deactivates countdown function.
- Electrical Socket: For connecting the appliance to be controlled.
Image 2: Angled view of the Mi-Heat REV 25300 Digital Timer. This image shows the timer from an angled perspective, highlighting its compact design and the standard European plug on the back. The digital display and control buttons are visible on the front, along with the integrated electrical socket at the bottom.
Setup
- Initial Power-Up: Plug the timer into a standard 230V electrical outlet. The display will light up. If the display is blank or shows erratic characters, press the RESET button using a pointed object (e.g., a pen tip) to clear all memory and restore default settings.
- Setting Current Time and Day:
- Press and hold the CLOCK button.
- While holding CLOCK, press S- or V- to set the current day (MO, TU, WE, TH, FR, SA, SU).
- While holding CLOCK, press ON or AUTO to set the current hour.
- While holding CLOCK, press OFF or RND to set the current minute.
- Release the CLOCK button to save the settings.
- 12h/24h Display Mode: To switch between 12-hour and 24-hour display formats, press the CLOCK button and the ON/OFF button simultaneously.
Operating Instructions
The timer allows for up to 20 ON/OFF switching programs per day, totaling 140 programs per week. Programs can be set for individual days, weekdays, weekends, or the entire week.
- Programming ON/OFF Times:
- Press the SET button once to enter program mode. The display will show "1 ON".
- Press S- or V- to select the desired day(s) for this program (e.g., MO, TU, WE, TH, FR, SA, SU, MO-FR, SA-SU, MO-SA, etc.).
- Press ON or AUTO to set the hour for the "ON" time.
- Press OFF or RND to set the minute for the "ON" time.
- Press SET again. The display will show "1 OFF".
- Repeat the day, hour, and minute setting process for the "OFF" time.
- Continue pressing SET to cycle through all 20 ON/OFF programs.
- After setting all desired programs, press the CLOCK button to exit program mode and return to the current time display.
- Manual Override (ON/OFF):
- Press the ON/OFF button repeatedly to cycle through the operating modes:
- ON: The connected appliance is continuously ON.
- AUTO: The connected appliance operates according to the programmed schedule.
- OFF: The connected appliance is continuously OFF.
- For automatic operation, ensure the timer is set to AUTO mode.
- Press the ON/OFF button repeatedly to cycle through the operating modes:
- Countdown Function (C.D.):
- Press the C.D. button. The display will show "CD ON".
- Use ON/AUTO and OFF/RND to set the desired countdown duration (hours and minutes).
- Press C.D. again to start the countdown. The connected appliance will turn ON for the set duration, then turn OFF.
- To cancel the countdown, press C.D. during the countdown.
- Random Function (RND):
- Press the RND button to activate the random function. "RND" will appear on the display.
- In random mode, the timer will randomly turn the connected appliance ON and OFF within a set period (e.g., 30 minutes to 2 hours) around your programmed times, creating an impression of occupancy.
- Press RND again to deactivate the random function.
- Summer/Winter Time Switching:
- Press and hold the CLOCK button and the S- button simultaneously for a few seconds. The display will adjust by one hour forward or backward, and a "SUMMER" or "WINTER" indicator may appear.
- Repeat the process to revert to standard time.
Maintenance
- Cleaning: Disconnect the timer from the power outlet. Wipe the exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: If storing the timer for an extended period, ensure it is clean and dry. Store in a cool, dry place away from direct sunlight.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or erratic. | Low internal battery or system error. | Press the RESET button with a pointed object. Ensure the timer is plugged in for at least 4 hours to charge the internal battery. |
| Appliance does not turn ON/OFF at programmed times. | Timer is not in AUTO mode; incorrect program settings; appliance is not working. | Ensure the timer is set to AUTO mode using the ON/OFF button. Double-check your program settings. Test the appliance directly in the wall socket. |
| Timer does not respond to button presses. | System freeze or internal error. | Press the RESET button. If the issue persists, unplug the timer for a few minutes and plug it back in. |
Specifications
| Brand | Mi-Heat |
| Model Number | 476 (REV 25300) |
| Mounting Type | Electrical Socket |
| Supply Voltage | 230 V |
| Minimum Switching Distance | 1 minute |
| Maximum Switching Power | 8 A / 1800 W (Inductive 2 A) |
| Power Reserve | Approx. 100 hours |
| Material | Plastic |
| Color | White |
Warranty and Support
For warranty information, please refer to the terms and conditions provided at the point of purchase or contact your retailer. Mi-Heat offers direct support and shipping from Germany. If you have questions about our products, your order, or project implementation, you can reach us Monday to Friday from 09:00 to 16:00.
For further assistance, please contact the seller or manufacturer directly. Contact details may be available on the product packaging or the seller's website.
