York PREDATOR DR120 - Manual (Page 63)

127878-YIM-B-0606
Unitary Products Group 63
TABLE 42: IGNITION CONTROL FLASH CODES
FLASHES FAULT CONDITIONS CHECK
STEADY ON Control Failure Control
HEARTBEAT Normal Operation
1 Not Applicable
2
Pressure Switch
Stuck Closed
Pressure Switch
3
Pressure Switch Failed
To Close Venter Pressure Switch
Vent Blocked
4 Limit Switch Open
Main Limit
AUX Limit
5
Flame Present With Gas
Off First Stage Gas Valve
Energized With W1 Off
Second Stage Gas Valve
Energized With First
Stage
Gas Valve Off
Gas Valve
6 Ignition Lockout
Gas Flow
Gas Pressure
Gas Valve
Flame Sensor
STEADY OFF
No Power Or Control
Failure
24VAC or Control
TABLE 43: REHEAT CONTROL BOARD FLASH
CODES
FLASH CODES DESCRIPTION
On Steady This is a Control Failure
1 Flash Not Applicable
2 Flashes
Hot Gas Reheat is on with Y1 Output
(No Call for Cooling)
3 Flashes
Y1, Y2, and Hot Gas Reheat is on because of
a call for Y1 and Humidistat. See alt operation
OFF No Power or Control Failure