Napoleon
Napoleon Pellet Grills & Smokers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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AUG
The display shows an AUG error, and pellets stop feeding.
Auger Stall or Feed Fault
Er1
Control display shows Er1, and the grill will not start the ignition sequence.
RTD Temperature Probe Open Circuit
Er2
Control display shows Er2, and the grill shuts down or will not start.
RTD Temperature Probe Short Circuit
Er3
Display shows Er3, and the grill will not ignite or shuts down shortly after starting.
Igniter Circuit Failure
Er4
Display shows Er4, and the grill stops feeding pellets or shuts down.
Auger Motor Circuit Failure
Er5
Display shows Er5, and the grill shuts down during cooking.
Combustion Fan Circuit Failure
Er6
Display shows Er6, and the grill will not maintain temperature.
Grill Lid Open or Low Temperature Safety Fault
Er7
Display shows Er7, and the grill shuts down with a very high temperature reading.
Over-Temperature Safety Shutdown
Er8
Display shows Er8, and the grill will not start or shuts down shortly after startup.
Flame-Out Detected During Startup
Er9
Display shows Er9, and the grill becomes unresponsive or buttons do not work correctly.
Control Panel Keypad or Interface Fault
FAN
Display shows FAN error, and the grill shuts down or will not start.
Combustion Fan Speed or Feedback Fault
H1
Display shows H1, and the grill temperature reading is abnormally high at startup.
High Temperature Detected at Startup
IGN
The display shows an IGN error, and pellets feed but do not ignite.
Ignition Timeout Fault
L1
Display shows L1, and the grill temperature reading is abnormally low or negative.
Low Temperature or Sensor Range Fault
PEL
The display shows a PEL error, and the grill shuts down due to a fire-out condition.
Pellet Supply or Fuel Starvation Fault
PROB
The display shows a PROB error, and the meat probe temperature does not read correctly.
Meat Probe Sensor Fault
WiFi
The display shows a Wi-Fi error, or the app cannot connect to the grill.
Wi-Fi Module or Connectivity Fault
Symptom
Display is dim, hard to read, or segments are missing
Display Backlight or Segment Failure
Symptom
Display resets or flickers when the igniter or fan turns on.
Voltage Drop or Electrical Interference
Symptom
Display works but the temperature reading is obviously wrong (e.g., 500°F at room temperature).
Temperature Sensor Calibration Error
Symptom
Excessive vibration or rattling noises during operation
Loose Panels or Imbalanced Rotating Components
Symptom
Excessive white smoke and a strong raw smoke smell during cooking.
Incomplete Combustion
Symptom
Grease fire in the cook chamber during operation.
Grease Ignition
Symptom
Grease leaking from the front or sides of the grill cabinet.
Grease Management System Overflow
Symptom
High-pitched squeal or rattling from the rear of the grill during operation.
Combustion Fan Bearing Wear or Imbalance
Symptom
Lid does not close evenly, or there is a visible gap at the front or sides
Lid Misalignment or Hinge Deformation
Symptom
Loud grinding or squealing noise from the hopper area.
Auger Mechanical Binding
Symptom
Pellets back-burning into the hopper or smoke coming from the hopper.
Backdraft Through Auger Tube
Symptom
Rust forming inside the cook chamber or on the grates
Corrosion of Interior Components
Symptom
Strong electrical or burning plastic smell from the control area.
Overheated Wiring or Component Failure
Symptom
The grill never reaches high temperatures (e.g., cannot exceed 350°F).
Insufficient Heat Output
Symptom
The grill powers on but will not start the ignition cycle when the START button is pressed.
Start Circuit or Safety Interlock Fault
Symptom
The grill starts but shuts down after 5–15 minutes with no error code.
Intermittent Flame-Out
Symptom
The grill temperature overshoots the setpoint by more than 50°F and fluctuates widely.
Temperature Control Instability
Symptom
The grill will not power on at all; there are no lights or display.
No AC Power to Control Board
Symptom
Water or moisture inside the hopper or on the pellets.
Moisture Intrusion into Fuel System
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| AUG |
The display shows an AUG error, and pellets stop feeding.
|
Auger Stall or Feed Fault | View Details |
| Er1 |
Control display shows Er1, and the grill will not start the ignition sequence.
|
RTD Temperature Probe Open Circuit | View Details |
| Er2 |
Control display shows Er2, and the grill shuts down or will not start.
|
RTD Temperature Probe Short Circuit | View Details |
| Er3 |
Display shows Er3, and the grill will not ignite or shuts down shortly after starting.
|
Igniter Circuit Failure | View Details |
| Er4 |
Display shows Er4, and the grill stops feeding pellets or shuts down.
|
Auger Motor Circuit Failure | View Details |
| Er5 |
Display shows Er5, and the grill shuts down during cooking.
|
Combustion Fan Circuit Failure | View Details |
| Er6 |
Display shows Er6, and the grill will not maintain temperature.
|
Grill Lid Open or Low Temperature Safety Fault | View Details |
| Er7 |
Display shows Er7, and the grill shuts down with a very high temperature reading.
|
Over-Temperature Safety Shutdown | View Details |
| Er8 |
Display shows Er8, and the grill will not start or shuts down shortly after startup.
|
Flame-Out Detected During Startup | View Details |
| Er9 |
Display shows Er9, and the grill becomes unresponsive or buttons do not work correctly.
|
Control Panel Keypad or Interface Fault | View Details |
| FAN |
Display shows FAN error, and the grill shuts down or will not start.
|
Combustion Fan Speed or Feedback Fault | View Details |
| H1 |
Display shows H1, and the grill temperature reading is abnormally high at startup.
|
High Temperature Detected at Startup | View Details |
| IGN |
The display shows an IGN error, and pellets feed but do not ignite.
|
Ignition Timeout Fault | View Details |
| L1 |
Display shows L1, and the grill temperature reading is abnormally low or negative.
|
Low Temperature or Sensor Range Fault | View Details |
| PEL |
The display shows a PEL error, and the grill shuts down due to a fire-out condition.
|
Pellet Supply or Fuel Starvation Fault | View Details |
| PROB |
The display shows a PROB error, and the meat probe temperature does not read correctly.
|
Meat Probe Sensor Fault | View Details |
| WiFi |
The display shows a Wi-Fi error, or the app cannot connect to the grill.
|
Wi-Fi Module or Connectivity Fault | View Details |
| – |
Display is dim, hard to read, or segments are missing
|
Display Backlight or Segment Failure | View Details |
| – |
Display resets or flickers when the igniter or fan turns on.
|
Voltage Drop or Electrical Interference | View Details |
| – |
Display works but the temperature reading is obviously wrong (e.g., 500°F at room temperature).
|
Temperature Sensor Calibration Error | View Details |
| – |
Excessive vibration or rattling noises during operation
|
Loose Panels or Imbalanced Rotating Components | View Details |
| – |
Excessive white smoke and a strong raw smoke smell during cooking.
|
Incomplete Combustion | View Details |
| – |
Grease fire in the cook chamber during operation.
|
Grease Ignition | View Details |
| – |
Grease leaking from the front or sides of the grill cabinet.
|
Grease Management System Overflow | View Details |
| – |
High-pitched squeal or rattling from the rear of the grill during operation.
|
Combustion Fan Bearing Wear or Imbalance | View Details |
| – |
Lid does not close evenly, or there is a visible gap at the front or sides
|
Lid Misalignment or Hinge Deformation | View Details |
| – |
Loud grinding or squealing noise from the hopper area.
|
Auger Mechanical Binding | View Details |
| – |
Pellets back-burning into the hopper or smoke coming from the hopper.
|
Backdraft Through Auger Tube | View Details |
| – |
Rust forming inside the cook chamber or on the grates
|
Corrosion of Interior Components | View Details |
| – |
Strong electrical or burning plastic smell from the control area.
|
Overheated Wiring or Component Failure | View Details |
| – |
The grill never reaches high temperatures (e.g., cannot exceed 350°F).
|
Insufficient Heat Output | View Details |
| – |
The grill powers on but will not start the ignition cycle when the START button is pressed.
|
Start Circuit or Safety Interlock Fault | View Details |
| – |
The grill starts but shuts down after 5–15 minutes with no error code.
|
Intermittent Flame-Out | View Details |
| – |
The grill temperature overshoots the setpoint by more than 50°F and fluctuates widely.
|
Temperature Control Instability | View Details |
| – |
The grill will not power on at all; there are no lights or display.
|
No AC Power to Control Board | View Details |
| – |
Water or moisture inside the hopper or on the pellets.
|
Moisture Intrusion into Fuel System | View Details |
No matching codes found
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