Brand: Allied Air Enterprises
Category: Furnace
Manual Type:
Language:
Manual for A80DF1E & 80G1DFE
Uploaded: April 1, 2025, 12:48 a.m.
Warranty Summary
Equipment limited warranty information is mentioned but the warranty period is not specified in this manual.
Start-Up:
- Set thermostat to lowest setting.
- Turn off electrical power.
- Turn gas valve to OFF, wait 5 minutes.
- Turn gas valve to ON.
- Restore electrical power.
- Set thermostat to desired temperature.
Heating Sequence:
- Thermostat calls for heat.
- Combustion air blower starts.
- Pressure switch proves blower.
- 15-second pre-purge.
- Hot surface ignitor energizes.
- 20-second ignitor warm-up.
- Gas valve opens (4-second trial for ignition).
- Flame is ignited and sensed.
- Combustion process continues.
Troubleshooting and error codes
| Red LED Flash Code | Diagnostic Codes / Status of Furnace |
|---|---|
| LED Off | No power to control or control hardware fault detected |
| Heartbeat¹ | Control powered - displayed during all modes of operation if no errors are detected |
| 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 |
| Red LED Flash Code² | Diagnostic Codes / Status of Furnace |
|---|---|
| LED Off | No power to control or control hardware fault detected |
| Heartbeat¹ | 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 |
Troubleshooting and error codes
| Red LED Flash Code | Diagnostic Codes / Status of Furnace |
|---|---|
| LED Off | No power to control or control hardware fault detected |
| Heartbeat¹ | Control powered - displayed during all modes of operation if no errors are detected |
| 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 |
| Red LED Flash Code² | Diagnostic Codes / Status of Furnace |
|---|---|
| LED Off | No power to control or control hardware fault detected |
| Heartbeat¹ | 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 |