30
Red Light Signal Refer to Abnormal Heating or Cooling Operation Sections of this Manual
Off
Internal Control Failure
1 Flash
External Lockout
2 Flashes
Pressure Switch Stuck Open
3 Flashes
Pressure Switch Stuck Closed
4 Flashes
Thermal Protection Device Open
5 Flashes
Flame Detected with Gas Valve Closed
6 Flashes
Short Cycle Compressor Delay (Cooling Only)
7 Flashes
Limit Opened Five (5) Times Within The Same Call For Heat
8 Flashes
Indoor/Outdoor Thermostat Open (Cooling Only; Devices Not present On All Models)
9 Flashes
High Pressure/Loss of Charge Switch Open (Cooling Only; Devices Not Present On All Models)
Amber Light Signal Refer to Abnormal Heating or Cooling Operation Sections of this Manual
Off
No Flame Present
On
Normal Flame
1 Flash
Low Flame Current
2 Flashes
Flame Detected with Gas Valve De-energized.
IGNITION CONTROL DIAGNOSTIC INDICATOR CHART
(TWO-STAGE MODELS ONLY)
HEATING TIMING CHART
COOLING TIMING CHART
90, 120, 150, 180
Circulator
Blower
HIGH
OFF
Seconds
Gas Valve
Igniter
Induced
Draft
Blower
Thermostat
0 15 22 27 52 0 30
LOW
HIGH
OFF
LOW
OFF
ON
HIGH
OFF
LOW
HIGH
OFF
LOW
Circulator
Blower
Compressor
Outdoor Fan
HIGH
OFF
LOW
HIGH
OFF
LOW
HIGH
OFF
LOW
