aterno Opti-Plus 5D Mode D'emploi page 28

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A problem?
The green "TH" LED is flashing (the heater has not received any
information for more than an hour).
– Check the batteries of the thermostat
— Go to the transmission verification mode (§ 2.4).
- If the red "
move your thermostat
- If the problem persists, carry out the configuration again.
Note:
In the event of a fault, when the green "TH" LED of the heater is
flashing, it is possible to force the heater into or out of service
using the push button.
Problem
" LED does not flash (every 3 seconds),
Diagnosis / Solutions
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