Z Grills
Z 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 flashes AUG or auger icon error and pellets do not feed.
Auger Drive Circuit or Motor Fault
Er1
Control panel displays Er1 and grill will not start heating.
RTD Temperature Probe Open Circuit
Er2
Control panel displays Er2 and grill shuts down or will not heat properly.
RTD Temperature Probe Short Circuit
Er3
Display shows Er3 and grill will not ignite or shuts down shortly after startup.
Igniter (Hot Rod) Failure Detected
Er4
Display shows Er4 and grill temperature reading is erratic or stuck.
Control Board Temperature Sensing Circuit Fault
Er5
Display shows Er5 and grill shuts down or will not start the auger.
Auger Motor Overload or Jam Detected
Er6
Display shows Er6 and grill will not power the fan or auger.
Low Voltage or Power Supply Fault
Er7
Display shows Er7 and grill temperature overshoots or undershoots setpoint significantly.
Temperature Calibration or Sensor Range Error
FAN
Display flashes FAN or fan icon error and grill shuts down or fails to ignite properly.
Combustion Fan Failure or Feedback Error
H1
Display shows H1 and grill temperature is reading extremely high or maxed out even when cool.
High Temperature Sensor Reading / RTD Short to Ground
IGN
Display flashes IGN or ignition error; grill times out without lighting pellets.
Ignition Timeout / Failed Ignition Sequence
L1
Display shows L1 and grill temperature reading is extremely low or negative.
Low Temperature Sensor Reading / RTD Open or Disconnected
P1
Controller shows P1 and grill struggles to maintain temperature, often running too cool.
Pellet Feed Rate Too Low (P-Setting Configuration)
P7
Controller shows P7 and grill runs very hot in smoke mode or produces heavy smoke and swings.
Pellet Feed Rate Too High (P-Setting Configuration)
Symptom
Chimney cap or stack heavily coated with creosote and tar-like buildup.
Excessive Creosote Accumulation
Symptom
Display shows temperature but grill does not respond to changes in set temperature.
Control Output Failure
Symptom
Display works but buttons or dial on the control panel do not respond.
Control Panel Input Failure
Symptom
Grease fire in the cook chamber; flames flare up from the drip tray area.
Grease Accumulation Ignition
Symptom
Grease leaking from bottom of grill instead of into grease bucket.
Grease Drainage Failure
Symptom
Grill cannot reach high temperatures (e.g., stuck below 350°F) even with lid closed.
Low Maximum Temperature / Insufficient Heat Output
Symptom
Grill fails to ignite pellets; no visible flame after several minutes, but auger is feeding.
Igniter Not Heating / Failed Hot Rod
Symptom
Grill overshoots set temperature by 50°F or more and struggles to come back down.
Temperature Overshoot / Excess Pellet Feed
Symptom
Grill powers on but auger does not feed pellets at all; firepot remains empty.
Auger Not Turning / No Pellet Feed
Symptom
Grill produces excessive white smoke and sooty residue on food.
Incomplete Combustion / Rich Fuel Mixture
Symptom
Grill starts but then runs out of pellets in the firepot and shuts down, even though the hopper is full.
Intermittent Pellet Feed / Partial Auger Jam
Symptom
Grill temperature fluctuates widely (±40–60°F) during a cook.
Unstable Temperature Control
Symptom
Grill will not power on; no lights or display on the Z Grills control panel.
No AC Power to Control Board
Symptom
Meat probe temperature reading is inaccurate or does not change.
Meat Probe Sensor Fault
Symptom
Paint peeling or bubbling on exterior near firebox or chimney.
High-Temperature Coating Failure
Symptom
Pellets ignite but the grill quickly goes out and displays a low temperature or shuts down.
Poor Combustion / Insufficient Airflow
Symptom
Rattling or vibrating noise from fan area during operation.
Combustion Fan Imbalance or Loose Mounting
Symptom
Rust forming inside the cook chamber or on grates, affecting performance and cleanliness.
Corrosion of Cooking Components
Symptom
Smoke leaking heavily from around the lid and door seams instead of mainly from chimney.
Lid Seal Leakage / Poor Chamber Sealing
Symptom
Strong chemical or electrical burning smell from control box area during operation.
Overheating Electrical Component
Symptom
Unusual loud grinding or squealing noise from hopper/auger area during operation.
Auger Mechanical Wear or Obstruction
Symptom
Water or moisture found inside hopper or control box; pellets swollen and disintegrating.
Moisture Intrusion into Hopper and Electronics
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| AUG |
Display flashes AUG or auger icon error and pellets do not feed.
|
Auger Drive Circuit or Motor Fault | View Details |
| Er1 |
Control panel displays Er1 and grill will not start heating.
|
RTD Temperature Probe Open Circuit | View Details |
| Er2 |
Control panel displays Er2 and grill shuts down or will not heat properly.
|
RTD Temperature Probe Short Circuit | View Details |
| Er3 |
Display shows Er3 and grill will not ignite or shuts down shortly after startup.
|
Igniter (Hot Rod) Failure Detected | View Details |
| Er4 |
Display shows Er4 and grill temperature reading is erratic or stuck.
|
Control Board Temperature Sensing Circuit Fault | View Details |
| Er5 |
Display shows Er5 and grill shuts down or will not start the auger.
|
Auger Motor Overload or Jam Detected | View Details |
| Er6 |
Display shows Er6 and grill will not power the fan or auger.
|
Low Voltage or Power Supply Fault | View Details |
| Er7 |
Display shows Er7 and grill temperature overshoots or undershoots setpoint significantly.
|
Temperature Calibration or Sensor Range Error | View Details |
| FAN |
Display flashes FAN or fan icon error and grill shuts down or fails to ignite properly.
|
Combustion Fan Failure or Feedback Error | View Details |
| H1 |
Display shows H1 and grill temperature is reading extremely high or maxed out even when cool.
|
High Temperature Sensor Reading / RTD Short to Ground | View Details |
| IGN |
Display flashes IGN or ignition error; grill times out without lighting pellets.
|
Ignition Timeout / Failed Ignition Sequence | View Details |
| L1 |
Display shows L1 and grill temperature reading is extremely low or negative.
|
Low Temperature Sensor Reading / RTD Open or Disconnected | View Details |
| P1 |
Controller shows P1 and grill struggles to maintain temperature, often running too cool.
|
Pellet Feed Rate Too Low (P-Setting Configuration) | View Details |
| P7 |
Controller shows P7 and grill runs very hot in smoke mode or produces heavy smoke and swings.
|
Pellet Feed Rate Too High (P-Setting Configuration) | View Details |
| – |
Chimney cap or stack heavily coated with creosote and tar-like buildup.
|
Excessive Creosote Accumulation | View Details |
| – |
Display shows temperature but grill does not respond to changes in set temperature.
|
Control Output Failure | View Details |
| – |
Display works but buttons or dial on the control panel do not respond.
|
Control Panel Input Failure | View Details |
| – |
Grease fire in the cook chamber; flames flare up from the drip tray area.
|
Grease Accumulation Ignition | View Details |
| – |
Grease leaking from bottom of grill instead of into grease bucket.
|
Grease Drainage Failure | View Details |
| – |
Grill cannot reach high temperatures (e.g., stuck below 350°F) even with lid closed.
|
Low Maximum Temperature / Insufficient Heat Output | View Details |
| – |
Grill fails to ignite pellets; no visible flame after several minutes, but auger is feeding.
|
Igniter Not Heating / Failed Hot Rod | View Details |
| – |
Grill overshoots set temperature by 50°F or more and struggles to come back down.
|
Temperature Overshoot / Excess Pellet Feed | View Details |
| – |
Grill powers on but auger does not feed pellets at all; firepot remains empty.
|
Auger Not Turning / No Pellet Feed | View Details |
| – |
Grill produces excessive white smoke and sooty residue on food.
|
Incomplete Combustion / Rich Fuel Mixture | View Details |
| – |
Grill starts but then runs out of pellets in the firepot and shuts down, even though the hopper is full.
|
Intermittent Pellet Feed / Partial Auger Jam | View Details |
| – |
Grill temperature fluctuates widely (±40–60°F) during a cook.
|
Unstable Temperature Control | View Details |
| – |
Grill will not power on; no lights or display on the Z Grills control panel.
|
No AC Power to Control Board | View Details |
| – |
Meat probe temperature reading is inaccurate or does not change.
|
Meat Probe Sensor Fault | View Details |
| – |
Paint peeling or bubbling on exterior near firebox or chimney.
|
High-Temperature Coating Failure | View Details |
| – |
Pellets ignite but the grill quickly goes out and displays a low temperature or shuts down.
|
Poor Combustion / Insufficient Airflow | View Details |
| – |
Rattling or vibrating noise from fan area during operation.
|
Combustion Fan Imbalance or Loose Mounting | View Details |
| – |
Rust forming inside the cook chamber or on grates, affecting performance and cleanliness.
|
Corrosion of Cooking Components | View Details |
| – |
Smoke leaking heavily from around the lid and door seams instead of mainly from chimney.
|
Lid Seal Leakage / Poor Chamber Sealing | View Details |
| – |
Strong chemical or electrical burning smell from control box area during operation.
|
Overheating Electrical Component | View Details |
| – |
Unusual loud grinding or squealing noise from hopper/auger area during operation.
|
Auger Mechanical Wear or Obstruction | View Details |
| – |
Water or moisture found inside hopper or control box; pellets swollen and disintegrating.
|
Moisture Intrusion into Hopper and Electronics | View Details |
No matching codes found
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