DHB-E 18/21/24 LCD - Boiler STIEBEL ELTRON - Free user manual and instructions
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| Product type | Instantaneous electric water heater |
| Brand | Stiebel Eltron |
| Model | DHB-E 18/21/24 LCD |
| Power (kW) | 18 / 21 / 24 (selectable) |
| Power supply | 400 V three-phase |
| Dimensions (H x W x D) | 470 x 225 x 105 mm |
| Weight | Approximately 3.5 kg |
| Display | LCD screen with settings menu |
| Temperature setting | 30 °C to 60 °C in 1 °C increments |
| Minimum flow rate for activation | 2.5 L/min |
| Maximum operating pressure | 10 bar |
| Water connection | G 1/2 |
| Protection class | IP24 |
| Main features | Electronic power switching, LCD screen, settings memory, touch control |
| Maintenance and cleaning | Periodic descaling required depending on water hardness |
| Safety | Overheating protection, temperature limiter, child safety lock |
| Spare parts and repairability | Available through Stiebel Eltron after-sales service, high repairability index |
| Warranty | 2 years (parts and labor) |
Frequently Asked Questions - DHB-E 18/21/24 LCD STIEBEL ELTRON
How to adjust the water temperature?
Use the + and - buttons on the LCD screen to adjust the desired temperature between 30 °C and 60 °C.
What to do if the water does not heat?
Check the power supply (circuit breaker) and water flow (minimum 2.5 L/min). If the problem persists, contact after-sales service.
Can I install the device myself?
Installation must be carried out by a qualified professional in accordance with current electrical and plumbing standards.
How to descale the water heater?
Use a suitable descaling product. Follow the manual instructions: drain, inject product, rinse thoroughly.
What is the maximum power of this device?
The DHB-E LCD can be set to 18, 21 or 24 kW depending on needs and electrical configuration.
Is the LCD backlit?
Yes, the LCD screen has backlighting for easy reading even in the dark.
What do the error codes on the screen mean?
Refer to the error code table in the manual. For example, E01 indicates a temperature sensor failure.
Can the device be used with very hard water?
Yes, but more frequent descaling is necessary. A water softener is recommended upstream.
How to activate the child safety lock?
Press and hold the Mode button for 3 seconds. A lock symbol appears on the screen.
Where to find spare parts?
Contact Stiebel Eltron after-sales service or an authorized dealer. Parts are available under the model reference.
User questions about DHB-E 18/21/24 LCD STIEBEL ELTRON
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Download the instructions for your Boiler in PDF format for free! Find your manual DHB-E 18/21/24 LCD - STIEBEL ELTRON and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. DHB-E 18/21/24 LCD by STIEBEL ELTRON.
USER MANUAL DHB-E 18/21/24 LCD STIEBEL ELTRON
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Product information
Brand : STIEBEL ELTRON
Model : DHB-E 18/21/24 LCD
Category : Boiler