Button / Status LED
21
Possible LED indicators on the immersion heater
Control indicator
Explanation
Green, steady light
Set output 0 W is preset wirelessly
Green, slow flashing
Set output > 0 W is preset wirelessly
Green, quick flashing
Set output > 0 W is preset via PWM input
If the LED flashes rapidly for only 3 seconds, pairing has been per-
mitted via the pushbutton.
Orange/red alternate, slow
flashing
Faulty circuit breaker
Orange, steady light
No wireless signal received for at least 2 minutes and no PWM sig-
nal received
Orange, slow flashing
Immersion heater excess temperature (> 95 °C)
Orange, quick flashing
Casing/PCB excess temperature (>75 °C)
Red, steady light
Internal fault
Red, slow flashing
Wireless chip error
Red, quick flashing
EEPROM error
