IBC VX Series Installation & Operating Manual page 92

LED 1
On
Rapid flash
Off
Flash alternately with
LED 2
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
4. Run the boiler to ensure that the error has been cleared.
5. If the error persists, perform a LWCO test. Go to
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
4. Run the boiler to ensure that the error has been cleared.
5. If the error persists, perform a hi-limit test. Go to
Run the test to see if the hi-limit switch is operational. You can also perform this test for
gasket blowouts.
SIM Status Indicators
LED 2
On Heating
On Igniting
Flashing Lockout
Flash alternately with Fail-safe
LED 1
> SIM Menu> LWCO Test > Reset > Yes.
> SIM Menu> Hi-Limit Test > Reset > Yes.
88
Section: Troubleshooting
Description, LED status
State
indication
Boiler requires a power cycle
> SIM Menu> Hi-Limit Test >
> SIM Menu> Hi-Limit Test >