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Issue 2128
Repair Parts List
The following repair parts are available through Allied Air dealers. When ordering parts, include the complete furnace model
number listed on the CSA nameplate. All service must be performed by a licensed professional installer (or equivalent),
service agency, or gas supplier.
Cabinet Parts
•
Upper Access Panel
•
Blower Access Panel
• Top Cap
Control Panel Parts
• Transformer
•
Integrated Control Board
•
Door Interlock Switch
Blower Parts
•
Blower Wheel
•
Motor
•
Motor Mounting Frame
•
Motor Capacitor
•
Blower Housing Cutoff Plate
Heating Parts
•
Flame Sensor
•
Heat Exchanger Assembly
•
Gas Manifold
•
Combustion Air Inducer
•
Gas Valve
•
Main Burner Cluster
•
Main Burner Orifices
•
Pressure Switch
•
Ignitor
•
Primary Limit Control
•
Flame Rollout Switches
Table 15. Diagnostic Codes
-03 Integrated Control LED Codes
Red LED Flash Code
2
Diagnostic Codes / Status of Furnace
LED Off
No power to control or control hardware fault detected
Heartbeat
1
Normal operation - idle, continuous fan, cool
Continuous Rapid Flash Call for heat / burner operation
1 Flash
Reverse line voltage polarity
2 Flashes
Improper earth ground
3 Flashes
Burner failed to light, or lost flame during heat demand
4 Flashes
Low flame signal - check flame sensor
5 Flashes
Watchguard - burner failed to light, exceeded maximum number of retries or recycles
6 Flashes
Not used
7 Flashes
Primary or Secondary limit open or watchguard mode - limit switch open longer than 3 minutes
8 Flashes
Rollout switch open
9 Flashes
Pressure switch failed to close or opened during heat demand
10 Flashes
Watchguard - Pressure switch opened 5 times during one heat demand
11 Flashes
Pressure switch stuck closed prior to activation of combustion air inducer
12 Flashes
Flame sensed without gas valve energized
13 Flashes
Low line voltage
1
A “heartbeat” is indicated by a “slow flash” - 1 sec on 1 sec off, repeating
2
Error codes are indicated by a “rapid flash” - the LED flashes X times at 1/2 sec on, 1/2 sec off, remains off for 3 sec, then repeats
NOTE
: Last 10 error codes are stored in memory, including when power is shut off to the unit. To recall, press and release button.
Most recent will be displayed first, LED off for 3 sec, then next error code is displayed, etc. To clear error codes, depress and hold
button longer than 5 seconds.