BKFD400105 - Underfloor heating HAGER - Free user manual and instructions
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| Product Type | Underfloor Heating Thermostat |
| Model Number | BKFD400105 |
| Brand | Hager |
| Dimensions (H x W x D) | 86 x 86 x 37 mm |
| Weight | 0.15 kg |
| Power Supply | 230 V AC, 50/60 Hz |
| Maximum Load | 16 A (resistive), 10 A (inductive) |
| Display Type | LCD with backlight |
| Control Type | Touch or push-button |
| Programming | Weekly programmable with up to 6 time periods per day |
| Temperature Range | 5°C to 35°C (floor), 5°C to 40°C (ambient) |
| Protection Class | IP21 (indoor use) |
| Installation | Flush-mounted or surface-mounted with frame |
| Compatible With | Electric underfloor heating mats, water-based systems (via actuator) |
| Key Functions | Weekly timer, frost protection, child lock, holiday mode |
| Maintenance | Clean with dry cloth; avoid solvents |
| Safety Features | Overheat protection, max floor temperature limiter |
| Spare Parts & Repairability | Replacement sensors, screws, and frames available from Hager |
| Certification | CE, UKCA, RoHS |
Frequently Asked Questions - BKFD400105 HAGER
How do I install the Hager BKFD400105 thermostat?
Installation should be performed by a qualified electrician. Connect the thermostat to the 230V AC supply and attach the floor sensor (if included). Use the provided frame for flush or surface mounting. Always turn off power before installation.
How do I program the weekly schedule?
Press the menu button to access the programming mode. You can set up to 6 time periods per day with different temperatures (comfort, energy saving, etc.). Refer to the manual for detailed steps.
How do I reset the thermostat to factory defaults?
Navigate to the settings menu and select 'Reset' or press and hold the menu button for 10 seconds. Confirm the reset when prompted. This clears all settings.
What is the maximum floor temperature setting?
The maximum floor temperature can be set between 5°C and 35°C. For safety, the internal limiter prevents exceeding this range.
Can I use this thermostat with water-based floor heating?
Yes, the thermostat can control a thermal actuator (not included) for water-based systems. Ensure the actuator is compatible with your heating manifold.
How do I activate the child lock?
Press and hold the up and down arrows simultaneously for 5 seconds. The display will show a lock icon. Repeat to unlock.
What does the frost protection mode do?
Frost protection keeps the room temperature at 7°C when the heating is off, preventing pipes from freezing. It can be enabled in the menu.
How do I replace the floor sensor?
Turn off power. Remove the thermostat from the wall, disconnect the faulty sensor, and connect a new one (Hager part BFD100). Mount the sensor in the floor according to the original installation.
Why is the display showing an error code?
Common error codes: E1 (sensor short circuit), E2 (sensor open circuit). Check sensor connections. If persistent, contact Hager support.
Can I use the thermostat with a smart home system?
This model does not have Wi-Fi or smart connectivity. It is a standalone programmable thermostat. For smart features, consider Hager's Domovea series.
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USER MANUAL BKFD400105 HAGER
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Product information
Brand : HAGER
Model : BKFD400105
Category : Underfloor heating