York BP 090, BP120 installation manual Unit Control Board Flash Codes

66307-YIM-B-0606

TABLE 38: UNIT CONTROL BOARD FLASH CODES

		GREEN	RED	RED	RED	RED
FLASH CODE	DESCRIPTION	LED	LED	LED	LED	LED
		16	8	4	2	1
On Steady	This is a Control Failure	-	-	-	-	-
1 Flash	Not Applicable	-	-	-	-	-
2 Flashes	Control waiting ASCD*	Flashing	Off	Off	On	Off
3 Flashes	HPS1 Compressor Lockout	Off	Off	Off	On	On
4 Flashes	HPS2 Compressor Lockout	Off	Off	On	Off	Off
5 Flashes	LPS1 Compressor Lockout	Off	Off	On	Off	On
6 Flashes	LPS2 Compressor Lockout	Off	Off	On	On	Off
7 Flashes	FS1 Compressor Lockout	Off	Off	On	On	On
8 Flashes	FS2 Compressor Lockout	Off	On	Off	Off	Off
9 Flashes	Ignition Control Locked Out / Ignition Control Failure	Off	On	Off	Off	On
10 Flashes	Compressors Locked Out on Low Outdoor Air Temperature1	Flashing	On	Off	On	Off
11 Flashes	Compressors locked out because the Economizer is using free	Flashing	On	Off	On	On
	Cooling1
12 Flashes	Unit Locked Out due to Fan Overload Switch Failure	Off	On	On	Off	Off
13 Flashes	Compressor Held Off due to Low Voltage1	Flashing	On	On	Off	On
14 Flashes	EEPROM Storage Failure	Off	On	On	On	Off
OFF	No Power or Control Failure	Off	Off	Off	Off	Off

*. Non-alarm condition.

Check

Alarm

History

Reset All

ASCDs for

One Cycle

Non Alarm

Condition Green

LED Flashing

Current Alarm

Flashed

Red LED

FIGURE 24: UNIT CONTROL BOARD

40 Unitary Products Group