To test the LWCO function:
1. Press and hold the LWCO Test button for 5 seconds (located on top of the electrical box).
A message on the screen indicates that the boiler is in lockout mode.
2.
Go to > SIM Menu > LWCO Test > Read the instructions.
3. On the touchscreen controller, select the Reset button.
The message: "The SIM Module has been reset" is displayed.
4. Tap the Close button.
6.4 Testing the low water cutoff (LWCO) function