Troubleshooting Error Messages; Touchscreen Error Messages - IBC EX Series Installation & Operating Manual

The system clears the errors, and resets the boiler.
Testing the Hi-Limit cutoff temperature function
1. On the touchscreen controller, tap the Home screen.
2. On the Main Menu, tap the Diagnostics button.
3. Tap the SIM Module button.
4. Tap the Hi-Limit Test button.
You will need to enter a cutoff temperature below the Supply Temp. value currently
displayed. For example, if the Supply Temp. value is 180°F, enter 170°F in the Cut Off
Temp. box.
5. Tap inside the Cut-Off Temp. box, and then tap a number value.
6. Tap the OK button.
The message: "Hi-Limit Detected" is displayed.
7. To reset the boiler, select the Reset button. The cutoff value reverts to normal upon reset.
The message: "The SIM module has been reset" is displayed.
8. Tap the Close button, and then tap the Back button until you return to the Home screen.

8.3 Troubleshooting error messages

Errors shown on the touchscreen controller are described below as well as diagnoses and fixes.

8.3.1 Touchscreen error messages

Warning
Never attempt to repair the control module (circuit board). If the control module is defective,
replace it immediately.
The bottom line of the touchscreen displays the boiler's error status. The following colors represent the
boiler's operating status:
Green – Normal
Yellow – Warning
Red – Alarm
8.3 Troubleshooting error messages
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