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If a fault is identified, you should carry out another test by switching the device off and on
again. If the fault message is displayed again, the device is faulty and must be replaced.
If the fault message is displayed indicating the number '6', perhaps one of the buttons is
stuck. In this case, the keyboard must be checked. Then switch the device off and on again
for another test.
5.2. What to do in the event of a loss of power
If there is a loss of power, all parameters will remain saved in the memory. Both relays
(heating and alarm) will stop working.
After the power failure, the device will continue to operate in its state when the power loss
occurred. The timers will remain constant during power loss (no reserve power supply).
5.3. Sensor monitoring
The ground temperature and moisture sensor and the air temperature sensor are monitored
for faults (breakage and short circuits) by the control device. If a fault occurs, the alarm
relay switches and the display indicates, "SENSOR FAULT" and a corresponding fault
message is emitted. The following fault messages are used:
Display
SHORT GROUND TMP
OPEN GROUND TMP
MOISTURE
SHORT MOISTURE
OPEN MOISTURE
SHORT AIR TMP
OPEN AIR TMP
SHORT SENSHEATER
OPEN SENSHEATER
A failure will interrupt heating times, such as the post-heating period. The heating output
will be turned on or off as set under the parameter "IN THE CASE OF FAILURE HEATING..."
* The monitoring of air temperature is only active when "local detection" is selected.
10
Type of fault
Ground sensor short circuit
Ground sensor interrupted
General fault in the moisture measurement device. Possible
faults: there are conductive objects touching one or both
sensors or the control device input is faulty.
Short circuit of the temperature sensor in the moisture
sensor (yellow)
Interruption of the temperature sensor of the moisture
sensor (yellow)
Short circuit in the air temperature sensor*
Interruption of air temperature sensor*
Short circuit in the sensor heating (is recognised if the
temperature of the ground sensor remains below +2°C for
longer than 2 hours)
Sensor heating interrupted
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