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The red LED on the right of the thermostat can indicate four different GFCI states:
1. LED off – NORMAL state.
2. LED flashing slowly (once every two seconds) – TRIGGERED state. Try pressing
the “Standby/Reset” button to reset the GFCI.
3. LED flashing quickly (five flashes per second) – ERROR state. Try switching the
power off and then back on again. If the thermostat re-enters ERROR state, ei-
ther the wiring is wrong (a ground-neutral short exists) or the unit is defective and
must be replaced.
4. LED lit constantly – Internal microprocessor malfunction or abnormal hardware
fault! Try switching the thermostat off and then back on again. If the LED still
lights constantly, the GFCI is defective and the thermostat must be replaced.
Note: The LED lights up briefly without flashing during every power-up.
5. Ground Fault Circuit Interrupter (GFCI) 2/2
Содержание DH E RT 102/BW
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