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.
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