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Autor
In my living room I have 15 dimmerable led lights, divided in two zones:
zone A: 9 leds
zone B: 6 leds
They are actually controller by two relays: two finder 15.91.8.230.0000 (see image, with also electrical schema)
I recently bought two Shelly Dimmer 2 in order to replace my two relays and make my led lights smart.
I attached the two dimmers 2's using the first schema (with Neutral), which is essentially the same schema of the old finder relay (RP is now SW1, the strange symbol is now O).
At first glance, both shellys work.
However, the shelly which is connected to zone A (9 leds), after about 15 minutes of switch on at 100% (~70W consumption) shuts down with "overtemperature". It reports a temperature of roughly 105°C.
No problem with the shelly connected to zone B (6 leds, ~43W consumption). After some minutes, it reports a constant temperature of roughly 77°C.
This is a status captured roughly one minute before one of the shutdowns.
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I tried to swap the shellys (so I could exclude that one dimmer is defective), but behaviour is the same.
The one connected to zone A always goes to overtemperature after a while.
I tried to repeat calibration multiple times (also with "trailing edge") but with no avail.
Is there something I can do?
Should I return the shellys?