SIM Status Indicators
LED 1 LED 2 State
Description, LED status
indication
On On Heating
Rapid flash On Igniting
Off Flashing Lockout
Flash alternately with
LED 2
Flash alternately with
LED 1
Fail-safe Boiler requires a power cycle
Table 13 SIM+ LED status Indicators
8.1.4.2 Resetting a boiler after a LWCO lockout
A boiler in a lockout condition due to a LWCO error will need to be reset.
1.
Go to > Clear Errors > Yes.
2. Check that there is enough water in the system and that the boiler is pressurized.
3.
To reset the boiler, go to > SIM Menu> LWCO Test > Reset > Yes.
4. Run the boiler to ensure that the error has been cleared.
5.
If the error persists, perform a LWCO test. Go to > SIM Menu> Hi-Limit Test >
Run the test to check if the low water cutoff sensor is opening.
8.1.4.3 Resetting a boiler after a hi-limit temperature lockout
A boiler in a lockout condition due to a hi-limit temperature error will need to be reset.
1.
Go to > Clear Errors > Yes.
2. Check that there is no air trapped in the system and that the boiler is pressurized.
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 operational. You can also perform this test for
gasket blowouts.
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