What causes DHW sensor 1 defect in my Buderus Control Unit?
A defect in DHW sensor 1 of your Buderus Control Unit may arise from several causes: the sensor being incorrectly connected or installed, a break or short circuit in the sensor lead, or a faulty sensor. Check the sensor connection and the sensor lead. Ensure the sensor is correctly mounted and compare resistance values with the sensor characteristic curve.
Why was the thermal disinfection unsuccessful on my Buderus Control Unit?
If thermal disinfection was unsuccessful on your Buderus Control Unit, it might be because the water draw was too great during the disinfection period. Select a time for thermal disinfection when there is no other demand for heat.
What to do if my Buderus Control Unit DHW stays cold?
If the DHW (domestic hot water) stays cold, it may be due to a constant drawing of water or a system leak. To resolve this, fix any leaks in your system.
What to do if the Buderus Control Unit shows a low battery for wireless operating unit HCx?
If your Buderus Control Unit displays a low battery warning for the wireless operating unit HCx, the battery in the RC20RF for HCx is low. Replace the batteries to resolve this issue.
Why is my Buderus Control Unit not communicating with RC35?
If there is no communication between your Buderus Control Unit and the RC35, it could be due to a couple of reasons. First, the RC20/RF may have an incorrect address, so check the address (parameter P1) in RC20/RF. Second, the RC35 might not be installed or correctly connected, so check the RC35 connection.
What to do if my Buderus Control Unit has no communication with BC10?
If your Buderus Control Unit is not communicating with the BC10, it could be due to a contact problem on the BC10 or the BC10 being faulty. Check the BC10 connection. If the problem persists, replace the BC10.
What to do if the room temperature for HCx is defect on my Buderus Control Unit?
If the room temperature for HCx is defective on your Buderus Control Unit, it's likely that the in-built temperature sensor on the programming unit / remote control unit is faulty. Replace the remote control unit to fix this.
What causes sensor separator module defect in my Buderus Control Unit?
A defect in the sensor separator module of your Buderus Control Unit can be due to a few reasons: the sensor being incorrectly connected or installed, a break or short circuit in the sensor lead, or the sensor itself being faulty. Check the sensor connection and the sensor lead. Ensure the sensor is correctly mounted and compare resistance values with the sensor characteristic curve.
What causes an outside sensor defect in my Buderus Control Unit?
An outside sensor defect in your Buderus Control Unit can be caused by a few things. The sensor might be incorrectly connected or installed, there could be a break or short circuit in the sensor lead, or the sensor itself may be faulty. Check the sensor connection and the sensor lead. Ensure the sensor is correctly mounted and compare resistance values with the sensor characteristic curve.
What does it mean when my Buderus Control Unit says 'Two master operating units in system'?
If your Buderus Control Unit displays 'Two master operating units in system', it means that both the RC20 and RC35 are registered as master units. To fix this, change parameter P1 in RC20 or remove RC35 from the EMS bus.
General| Display | LCD |
|---|---|
| Temperature Control | Yes |
| Weather Compensation | Yes |
| Communication | EMS Bus |
| Mounting | Wall-mounted |
| Voltage | 24 V |
| Temperature range | 5°C to 30°C |
| Accuracy | ±0.5°C |
| Protection class | IP20 |
| Weight | 0.3 kg |
| Power consumption | 2 W |
| Switching current | Not applicable |
| Ambient temperature | 0°C to 45°C |
Details warning symbols, signal words, and additional symbols used.
Provides crucial safety guidelines for installation, operation, and potential hazards.
Describes how to activate different operating modes (automatic, manual).
Explains how to set permanent day and night room temperatures.
Setting operating modes for RC35 and other heating circuits.
How to set heating schedules for day/night modes.
Addresses common questions about system behavior and measurements.
Explains different types of messages displayed by the unit.
Procedures for resetting system faults and locking issues.
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