8.4 FAQ’s and troubleshooting
8.4.1 Problems and potential causes
The room doesn’t get warm enough:
- Setpoint is set too low
- Room is in reduced mode
- An open window has been detected, so the heating is temporarily
stopped or in reduced mode
- The battery of the room unit is empty, so no data/commands can be
sent to the base
- In the BUS version, the power supply may be interrupted, there is no
contact to the base
- The heating system is not in heating mode or switched o
- Other cause that can be fixed only by your installer
The room is too warm
- Setpoint is too high, therefore the system continues to heat up
The room unit does not react to key presses
- Battery is empty. Please replace the batteries
- Room unit is defective, please contact your installer
- In the BUS version, the power supply may be interrupted, please
contact your installer
A radio wave is displayed on the controller
- The room unit has lost connection to the base. Please have your
installer clarify the cause. The use of an additional antenna may be
necessary.
A window icon appears on the display
- An open window or a rapid temperature drop was detected in the
room. In order to save energy, the heating of the room is reduced.
Drops are displayed on the display
- The humidity in the room is very high. There is a risk that condensa-
tion will occur on cold surfaces.
Please note: If this happens more often, there is a risk of mould.
E01 ... E10 or E99 is displayed on the Room unit
- This is an error code, please check the error list and contact the
installer if necessary..
8.4.2 Error-codes on NEA SMART 2.0 Room Units
The following error messages can be displayed on the display of the
room controller.
Please contact your installer to solve the problem:
E 01 Room temperature sensor outside measuring range
E 02 Room temperature sensor defective (interruption)
E 03 Room temperature sensor defective (short circuit)
E 04 Humidity sensor outside the measuring range
E 05 Humidity sensor defective (interruption)
E 06 Humidity sensor defective (short circuit)
E 07 Remote temperature sensor outside measuring range
E 08 Remote sensor defective (interruption), check cable
E 09 Short-circuit of remote sensor, check supply line
E 10 Connection error between base and R-/U-Module
E 99 Indication of a message that is displayed only on the
NEA SMART App
91
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