Monument Grills
Monument Grills 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
Display shows AUG or AUG ERR and pellets are not feeding
Auger Drive Fault
COLD
Display shows COLD or LOW TEMP and grill shuts down during startup
Startup Temperature Not Reached in Time
Er1
Control panel displays Er1 and grill will not start ignition cycle
RTD Temperature Probe Open Circuit
Er2
Control panel displays Er2 and grill shuts down or will not start
RTD Temperature Probe Short Circuit
Er3
Display shows Er3 and grill will not ignite or shuts down shortly after start
Igniter (Hot Rod) Failure Detected
Er4
Display shows Er4 and grill stops feeding pellets or shuts down unexpectedly
Auger Motor Overload or Jam Detected
Er5
Display shows Er5 and grill shuts down during cook or fails to reach set temperature
Combustion Fan Failure or Low Airflow
Er6
Display shows Er6 and grill will not power on or immediately shuts off
Low Voltage or Power Supply Fault
Er7
Display shows Er7 and temperature reading is obviously incorrect (e.g., shows 500°F when grill is cold)
Temperature Sensor Calibration or Range Error
Er8
Display shows Er8 and grill cycles power or locks out controls
Control Panel Keypad or Firmware Error
FAN
Display shows FAN or FAN ERR and grill will not continue the cook cycle
Combustion Fan Feedback Error
FLAME OUT
Display shows FLAME OUT and grill stops heating during cook
Loss of Combustion During Operation
HOT
Display shows HOT or HI TEMP and grill shuts down or goes into safety mode
Overtemperature Safety Trip
IGN
Display shows IGN or IGNITION FAIL and grill never lights
Failed Automatic Ignition Sequence
NO PELLET
Display shows NO PELLET or LOW PELLET and grill temperature drops
Pellet Supply Interruption
SENSOR
Display shows SENSOR or PROBE ERR and temperature will not display correctly
Temperature Sensor Detection Error
Symptom
Ash blowing around inside cook chamber and onto food
Excessive Ash Turbulence
Symptom
Display flickers or resets when igniter turns on
Voltage Drop Under Igniter Load
Symptom
Display works but buttons are unresponsive or intermittent
Keypad / User Interface Failure
Symptom
Excessive white smoke and sooty buildup on food and inside grill
Incomplete Combustion / Smoldering Pellets
Symptom
Food cooks unevenly, with hot spots and cold spots across grates
Uneven Heat Distribution
Symptom
Grease bucket does not fill but grease drips from underside of grill
Grease Drain Tube Disconnected or Blocked
Symptom
Grease fire in drip tray or lower cabinet
Grease Ignition Due to Excess Buildup
Symptom
Grease leaking from front or sides of grill cabinet
Grease Management System Overflow or Misrouting
Symptom
Grill ignites but then goes out after 5–15 minutes
Intermittent Flameout During Low or Medium Heat
Symptom
Grill overshoots set temperature by more than 50°F and cycles wildly
Temperature Control Instability
Symptom
Grill powers on but auger never feeds pellets
Auger Drive System Failure
Symptom
Grill powers on but combustion fan does not run, causing poor or no flame
Combustion Air Fan Failure
Symptom
Grill struggles to reach high temperatures (e.g., cannot exceed 350°F)
Insufficient Heat Output
Symptom
Grill temperature is much higher than display reading (food burns quickly)
Displayed Temperature Lower Than Actual Chamber Temperature
Symptom
Grill temperature is much lower than display reading (food undercooked)
Displayed Temperature Higher Than Actual Chamber Temperature
Symptom
Grill will not power on at all, no lights or display
No AC Power to Control System
Symptom
Hopper lid or main lid does not close properly or leaks smoke excessively
Lid Misalignment or Seal Failure
Symptom
Loud grinding or squealing noise from hopper area during operation
Auger Mechanical Noise / Bearing Wear
Symptom
Pellets backburn into hopper, producing smoke in hopper
Backdraft Through Auger Tube
Symptom
Rattling or vibrating noise from fan area
Combustion Fan Imbalance or Loose Mounting
Symptom
Rust forming inside cook chamber or on grates
Corrosion of Interior Surfaces
Symptom
Strong chemical or electrical burning smell from control panel area
Overheating Electrical Component
Symptom
Water or moisture found inside hopper or control panel area
Water Ingress into Hopper or Electronics
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| AUG |
Display shows AUG or AUG ERR and pellets are not feeding
|
Auger Drive Fault | View Details |
| COLD |
Display shows COLD or LOW TEMP and grill shuts down during startup
|
Startup Temperature Not Reached in Time | View Details |
| Er1 |
Control panel displays Er1 and grill will not start ignition cycle
|
RTD Temperature Probe Open Circuit | View Details |
| Er2 |
Control panel displays Er2 and grill shuts down or will not start
|
RTD Temperature Probe Short Circuit | View Details |
| Er3 |
Display shows Er3 and grill will not ignite or shuts down shortly after start
|
Igniter (Hot Rod) Failure Detected | View Details |
| Er4 |
Display shows Er4 and grill stops feeding pellets or shuts down unexpectedly
|
Auger Motor Overload or Jam Detected | View Details |
| Er5 |
Display shows Er5 and grill shuts down during cook or fails to reach set temperature
|
Combustion Fan Failure or Low Airflow | View Details |
| Er6 |
Display shows Er6 and grill will not power on or immediately shuts off
|
Low Voltage or Power Supply Fault | View Details |
| Er7 |
Display shows Er7 and temperature reading is obviously incorrect (e.g., shows 500°F when grill is cold)
|
Temperature Sensor Calibration or Range Error | View Details |
| Er8 |
Display shows Er8 and grill cycles power or locks out controls
|
Control Panel Keypad or Firmware Error | View Details |
| FAN |
Display shows FAN or FAN ERR and grill will not continue the cook cycle
|
Combustion Fan Feedback Error | View Details |
| FLAME OUT |
Display shows FLAME OUT and grill stops heating during cook
|
Loss of Combustion During Operation | View Details |
| HOT |
Display shows HOT or HI TEMP and grill shuts down or goes into safety mode
|
Overtemperature Safety Trip | View Details |
| IGN |
Display shows IGN or IGNITION FAIL and grill never lights
|
Failed Automatic Ignition Sequence | View Details |
| NO PELLET |
Display shows NO PELLET or LOW PELLET and grill temperature drops
|
Pellet Supply Interruption | View Details |
| SENSOR |
Display shows SENSOR or PROBE ERR and temperature will not display correctly
|
Temperature Sensor Detection Error | View Details |
| – |
Ash blowing around inside cook chamber and onto food
|
Excessive Ash Turbulence | View Details |
| – |
Display flickers or resets when igniter turns on
|
Voltage Drop Under Igniter Load | View Details |
| – |
Display works but buttons are unresponsive or intermittent
|
Keypad / User Interface Failure | View Details |
| – |
Excessive white smoke and sooty buildup on food and inside grill
|
Incomplete Combustion / Smoldering Pellets | View Details |
| – |
Food cooks unevenly, with hot spots and cold spots across grates
|
Uneven Heat Distribution | View Details |
| – |
Grease bucket does not fill but grease drips from underside of grill
|
Grease Drain Tube Disconnected or Blocked | View Details |
| – |
Grease fire in drip tray or lower cabinet
|
Grease Ignition Due to Excess Buildup | View Details |
| – |
Grease leaking from front or sides of grill cabinet
|
Grease Management System Overflow or Misrouting | View Details |
| – |
Grill ignites but then goes out after 5–15 minutes
|
Intermittent Flameout During Low or Medium Heat | View Details |
| – |
Grill overshoots set temperature by more than 50°F and cycles wildly
|
Temperature Control Instability | View Details |
| – |
Grill powers on but auger never feeds pellets
|
Auger Drive System Failure | View Details |
| – |
Grill powers on but combustion fan does not run, causing poor or no flame
|
Combustion Air Fan Failure | View Details |
| – |
Grill struggles to reach high temperatures (e.g., cannot exceed 350°F)
|
Insufficient Heat Output | View Details |
| – |
Grill temperature is much higher than display reading (food burns quickly)
|
Displayed Temperature Lower Than Actual Chamber Temperature | View Details |
| – |
Grill temperature is much lower than display reading (food undercooked)
|
Displayed Temperature Higher Than Actual Chamber Temperature | View Details |
| – |
Grill will not power on at all, no lights or display
|
No AC Power to Control System | View Details |
| – |
Hopper lid or main lid does not close properly or leaks smoke excessively
|
Lid Misalignment or Seal Failure | View Details |
| – |
Loud grinding or squealing noise from hopper area during operation
|
Auger Mechanical Noise / Bearing Wear | View Details |
| – |
Pellets backburn into hopper, producing smoke in hopper
|
Backdraft Through Auger Tube | View Details |
| – |
Rattling or vibrating noise from fan area
|
Combustion Fan Imbalance or Loose Mounting | View Details |
| – |
Rust forming inside cook chamber or on grates
|
Corrosion of Interior Surfaces | View Details |
| – |
Strong chemical or electrical burning smell from control panel area
|
Overheating Electrical Component | View Details |
| – |
Water or moisture found inside hopper or control panel area
|
Water Ingress into Hopper or Electronics | View Details |
No matching codes found
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