International comfort products A Series Installation Instructions Manual page 61

LED CODES
CONTINUOUS OFF
FLASHING (RED, AMBER, GREEN)
CONTINUOUS ON (RED)
CONTINUOUS ON (GREEN)
RAPID FLASHING (RED)
RAPID FLASHING (GREEN)
EACH OF THE FOLLOWING STATUS CODES IS A COMBINATION OF A SERIES OF FLASHES WITH A
COMPONENT TEST
LED ACTIVITY (CFH = Call for Heat)
1 FLASH (RED) System Lockout: Retries Exceeded, 1 Lock Out.. Retries are defined as failed ignition attempts,
i.e. no flame sense during the trial for ignition period, and there is no limit to the number of recycles.
Check for: No gas or gas valve OFF, Flame sense or igniter that has become broken, disconnected, or shorted;
Air leaking at interface between burner box and igniter, flame sensor, or main gasket.
2 FLASHES (RED) Pressure Sensor Null Error: Inconsistent reading with inducer off, 5 second lockout, Unlimited Retries.
Control waits 5 seconds after CFH (Call for Heat) before displaying fault. Fault is displayed until fault
condition corrects or CFH is removed.
Check for: Pressure Tube and Vent for restrictions), Transducer electrical/pressure connections, Inducer wheel
and motor move freely. Ensure pressure tube not covering bleed port on transducer.
3 FLASHES (RED) Pressure Sensor Span Error: Inconsistent reading with inducer on, 5 minute lockout, Unlimited Retries.
Span test maximum duration is 90 seconds. Once the span test fails, the control continues to attempt to start
furnace and fault is displayed until fault condition corrects or CFH is removed.
Check for: Non- -operational inducer; Blocked/leaking transducer tube; blocked vent pipe; Minimum pressure
not being reached.
4 FLASHES (RED) High Limit Switch Circuit Open: 3 hour lockout. When an open limit is detected, the control energizes the
blower at cooling speed and the iducer at the RUN setting- - no CFH required. Once the limit closes and the
CFH is present, the furnace returns to normal operation.
Check for: Obstructed flue pipe/ Blower airside restrictions (dirty/broken filter); Obstructed/restricted burner
box inlet.
5 FLASHES (RED)
Flame Present with Gas Valve OFF. When detected, the control energizes the inducer at the "Run" setting,
energize the blower on Heat speed, and displays fault - - no CFH required. Control continues normal operation
when fault condition is corrected.
Check for: Leaking gas valve. Shorted flame sensor to ground will NOT cause this fault to occur.
6 FLASHES (RED)
Lockout occurs if the condensate drain float switch is open. Inducer runs at maximum speed, main blower runs
at selected cooling speed. Furnace control will auto- -reset in 3 hours or when fault condition is corrected. Cycle
115 VAC power to clear fault code.
Check for: Blower condensate drain or open float switch.
7 FLASHES (RED) Gas Valve Circuit Shorted: 5 Minute Lockout. Voltage sensed at the gas valve terminal with the gas valve relay
in the de- -energized state. The inducer is energized to maximum speed.
LED ACTIVITY
Low Flame Sense. Flame Sense Current is below the weak flame threshold [3.0 μAmp].
1 FLASH (AMBER)
A poor or no ground can cause this fault as well as a dirty or corroded sensor.
2 FLASHES (AMBER) ID Plug Failure: Operation continues after fault correction. Wrong values for the specific board.
Includes damaged ID plug, ID plug missing, etc.
3 FLASHES (AMBER) Control Fuse Open: Operation continues after fault correction.
1 FLASH (GREEN) Call for Heating. "W" or "W & G".
2 FLASHES (GREEN) Call for Cooling. "Y" or "Y & G".
3 FLASHES (GREEN)
Continuous Fan Operation. "G" only.
FAULT RECALL AND CLEARING
Fault Code Recall (up to last 5)
The control must be powered and the thermostat satisfied (no call for heat or cool). Depress and release the SW1 button once
(less than 5 seconds); the LED will flash the Fault Code History (up to 5 fault codes from newest to oldest).
Fault Code Clear
The control must be powered and the thermostat satisfied (no call for heat or cool). Depress and hold the SW1 button for at least
5 seconds (but not more than 10 seconds), until the LED flashes a rapid green, then release. The fault code history will be erased.
440 01 4601 01
SERVICE GUIDE
STATUS
No 24 VAC Power to Control.
Power- -up verification of LED.
Control Fault Detected Hard Lockout. Continuous Reset. Cycle Power 30 seconds.
Standby, Normal Operation, No Thermostat Requests.
Line voltage (115VAC) polarity reversed.
Error history was successfully cleared
SPECIFIC COLOR LED
Specifications subject to change without notice.
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