IBC V-10, Manual, Page: 88 / 103

5. If the error persists, test the LWCO. Go to
> SIM Menu > LWCO Test > Run the test
to check if the low water cutoff sensor is opening.
10.8 Resetting a boiler after a hi-limit temperature
lockout
A boiler that has been placed in a lockout condition due to a hi-limit temperature error will need to
be reset in the controller's SIM module.
1. Go to
> Clear Errors > Yes .
2. Check that there is no air trapped in the system.
3. To reset the SIM Module, go to
> SIM Menu > Hi-Limit Test > Reset > Yes .
4. Run the boiler to ensure that the error has been cleared.
5. If the error persists, perform a hi-limit test. Go to
> SIM Menu > Hi-Limit Test > Run
the test to see if the hi-limit switch is opening. You can also perform this test for gasket
blowouts.
86
Section: Troubleshooting