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Last Modified: 06/05/2022
41
Troubleshooting
A manual resetting high temperature control switch is installed in the steam generator for over
-
heat protection. If temperature of the inner tank exceeds
115 °C, the switch will automatically disconnect power supply to heating element. In this case, it is necessary to disconnect the main power supply to steam
generator, allow the unit to completely cool down and then carefully check heating elements, water level sensor, relay on sub
-
board and water supply
pipeline.
The temperature switch should only be manually reset after the fault has been located and solved.
Diagnosing procedure:
The Signature steam generator controller can show the status of the steam generator working. If the generator can fill with water and drain out water
properly but does not heat up, check the connection wire between main circuit board and the sub
-
board, the relays on sub
-
board, and heating elements.
If water comes out from the steam outlet pipe, clean or change the outlet solenoid valve.
If the system keeps on heating up even if the current temperature is more than 2 °C above the setting value with the indicator on, carefully test the relays
on the sub
-
board and if faulty change the whole sub
-
board.
The above fault diagnosis and troubleshooting can refer to the function of the following main board indicators.
D24: 12V power supply
D34: 5V power supply
D22: drain OFF
D26: drain ON
D23: water fill in
D18.19.20: heating elements
D14: descaling
D15: salt spray generator
D16: Fan
D27.28: APP
D11: aroma pump A
D12: Aroma pump B
D29:30: Controller
Please refer to the circuit and connection diagrams for diagnosing and repair.
ALWAYS
cut off the power supply before carrying out any repair.
If problems still cannot be solved by the procedures listed above, please contact your retailer.
