Troubleshooting - Etherma ET-72 Manuel

Troubleshooting

The underfloor heating
Important
system is an electrical power installa-
tion and any faults must therefore be
remedied by a qualified electrician.
Error codes
When an error occurs, the thermostat
will turn off the heating. The LED flashes
alternately in red and green. The LCD
display shows a flashing error code, while
the display shows the following texts:
Error 1: Short circuit room sensor.
Error 2:Interruption room sensor.
Error 3: Short circuit floor sensor.
Error 4: Interruption floor sensor.
Test values for floor sensor
The following values apply when
the floor sensor's measurements are
checked.
Temperature
10 C
o
15 C
o
20 C
o
25 C
o
30 C
o
Resistance
19.9 kΩ
15.7 kΩ
12.5 kΩ
10.0 kΩ
8.0 kΩ
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