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– Every time there is a successful heat call, the count will return to zero
– From restricted mode, reset by pressing and holding the reset button for 30
seconds. When the LED flashes twice, reset has been accomplished
• T-T Jumper: Remove a factory-installed T-T jumper resistor by cutting it with side-
cutting pliers
• Lockout Mode: ICM’s oil primary control will enter lockout mode when flame:
– Is sensed in valve-on delay period
– Is not established in ignition trial
– Is lost three times in a single heat call
– Is sensed during burner motor-off delay stage
• Four Diagnostic LED states:
– On: Signals the presence of flame
– Off: No flame present
– Two seconds on, two seconds off: Recycle
– ½ second on, ½ second off: Lockout
• Cad Cell Resistance:
· Check cad cell resistance without an ohmmeter by pressing and releasing the reset
button during run mode
· Flashing indicates resistance (see Table 3, Page 14)
• Valve-on Delay/Blower Motor-off Delay:
– Certain models have fixed or selective delays for valve open or blower motor off
– During these delays, safety circuits check for flame and will switch to lockout if
flame exists
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