Armstrong World Industries 243, 302, 242, 122, 123, 203, 182, 183 manual Diagnostics Fenwal Triton 2461D

Service Reference Manual			UNIT COMPONENTS
				5-9
			Diagnostics (Fenwal Triton 2461D)
			1. Diagnostic LED flash rate is 1/4 second “ON”, 1/4 second “OFF”
			followed by up to four seconds “OFF” before repeating the code.
			2. Only one code is displayed at a time.
			3. During a “STEADY ON” code, the LED may blink off momentarily.
			4. Diagnostic codes may be reset by removing the power from the
			control for three seconds, then reapplying power. (Cycle thermostat
			“OFF” for three seconds, then back “ON”.)
			The following ignition control board LED codes indicate normal or
			abnormal operations:
	TABLE 5-1	Triton 2461D Diagnostic Flash Code
		This code is used for up to four seconds at startup each time the control is powered to
	STEADY ON	indicate that the control is performing a self diagnostic check. If a problem is detected, the
		self diagnosis will repeat for a total of five times which equals twenty seconds. If LED is on
		steady for 20 seconds, this indicates a control failure.
		Indicates an air flow fault. Used only on models with a pressure switch input (PSW). This
		code is active only if the PSW input is in the improper state after a predetermined time delay.
		For example: If the PSW input was powered when the call for heat begins (closed contacts),
	ONE FLASH	the control will allow a fixed time for the PSW input to go off otherwise the LED flash will
		commence. Conversely, if he PSW input is not powered within a fixed delay time after the
		inducer motor is energized, the LED flash will commence. If the PSW input is removed
		during a heating cycle, power will be removed from the gas valve immediately. If the PSW
		power input is not reapplied within a fixed time, the LED flash will commence.
		Indicates a flame detected out of sequence or with no call for heat. LED will flash twice as
	TWO	soon as flame is detected out of sequence and continue as long as the flame is present.
	FLASHES	Controls with an inducer control circuit will also power the inducer circuit when flame is
		detected out of sequence.
	THREE	Indicates ignition lockout after all ignition tries have been completed. This code will continue
		as long as the call for heat remains. On models equipped with one hour automatic reset, the
	FLASHES
		code will stop when a new ignition attempt begins.

SRM-HW/HWC 2/99