ELEKTRA ETR2 Bedienungsanleitung Seite 7

Fault codes
If faults occur, the thermostat disables all outputs and ceases to operate until the fault has been remedied.
TEMP LED flashes red:
MOIST LED flashes red:
RELAY LED flashes red:
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Temperature sensor (ETOG / ETF) has been disconnected or short-circuited.
Moisture sensor in sensor (ETOG / ETOR) has been short-circuited.
Heating element in sensor (ETOG / ETOR) has been short-circuited.
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