Bunn JDF-4S service manual

FUNCTION LIST (Continued)

Circuit Board LED Indicators - JDF-4S and Late Model JDF-2S

LED #	LED Color	Illuminates:
1 Bath	Red	When bath temperature is above 34 degrees F.
		Flashes slowly when compressor is in a 6 minute delay period.
		Open bath thermistor circuit will flash #1 and #2 LED’s 1 time every 3
		seconds. The compressor will not run under this condition.
		Shorted bath thermistor circuit will flash #1 and #2 LED’s 2 times every 3
		seconds. The compressor will not run under this condition.
2 Bath	Green	When bath temperature is below 34 degrees F.
3	Green	When the compressor should be ON.
4 Cabinet	Red	When the cabinet temperature is above 50 degrees F.
		Flashes slowly when cabinet temperature exceeds 50 degrees F for 4
		hours. Dispense functions are locked out under this condition. Power
		down the dispenser to reset.
		Flashes rapidly if dispense is attempted in lockout condition.
		Open cabinet thermistor circuit will flash #4 and #5 LED’s 1 time every 3
		seconds.
		Shorted cabinet thermistor will turn #4 and #5 LED’s on steady.
5 Cabinet	Green	When cabinet temperature is below 50 degrees F.

4		1
5		2
		3
	FIG 19 JDF-4S	P3845

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