Masterbuilt
Masterbuilt Electric Smokers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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Err1
Display shows “Err1” and smoker will not heat or start a cook cycle.
Temperature Probe Open or Disconnected
Err2
Display shows “Err2” and smoker shuts down or will not start heating.
Temperature Probe Shorted or Over-Range
Err3
Display shows “Err3” and smoker stops heating mid-cook or will not start.
High-Temperature Limit or Overheat Fault
Err4
Display shows “Err4” and controls are unresponsive or smoker shuts off unexpectedly.
Control Board Communication or Internal Fault
Err5
Display shows “Err5” and smoker will not heat or shuts down shortly after starting.
Heating Element Circuit Fault
Err6
Display shows “Err6” and remote or WiFi functions do not work while basic heating may still function.
Communication Error with Remote or WiFi Module
Err7
Display shows “Err7” and smoker will not start; sometimes accompanied by flickering display.
Low Voltage or Power Supply Fault
Err8
Display shows “Err8” and smoker will not maintain set temperature; may shut down unexpectedly.
Internal Control Calibration or Memory Fault
ErrP
Display shows “ErrP” or similar probe error and meat probe temperature does not read correctly.
Meat Probe Sensor Fault
—
Display shows dashes or “—” instead of temperature and smoker will not heat.
No Temperature Feedback to Control
Symptom
Buttons on the control panel stick or are hard to press.
Contaminated or Worn Membrane Keypad
Symptom
Condensation dripping from inside top of smoker onto food.
Excess Moisture Accumulation
Symptom
Digital display is very dim or unreadable in normal lighting, but smoker still functions.
Display Backlight or LED Failure
Symptom
Display lights up but buttons do not respond or respond intermittently.
Keypad or Control Panel Failure
Symptom
Door will not close fully or latch; gap remains even when pushing hard.
Door Alignment or Latch Failure
Symptom
Interior light does not turn on, but smoker heats and controls work normally.
Failed Cabinet Light Circuit
Symptom
Interior racks are difficult to slide in and out or tilt unexpectedly.
Rack Support Deformation or Contamination
Symptom
Meat probe reads very inaccurate temperatures (e.g., stuck at 32°F or jumps wildly).
Defective or Contaminated Meat Probe
Symptom
Paint or coating peeling on the inside of the door or cabinet.
Coating Degradation from Heat and Moisture
Symptom
Remote control will not pair or operate the smoker, but front panel works.
Remote Communication Failure
Symptom
Rust forming on interior surfaces, racks, or heating element shield.
Corrosion from Moisture and Residue
Symptom
Smoker heats but cannot reach set temperature; stalls 30–50°F below target even after long preheat.
Weak Heating Output or Heat Loss
Symptom
Smoker is leaking smoke heavily around the door edges and from corners of the cabinet.
Cabinet Seal and Panel Leakage
Symptom
Smoker makes loud popping or banging noises during heating and cooling.
Thermal Expansion of Metal Panels
Symptom
Smoker overheats well above the set temperature and food cooks too fast or burns.
Temperature Regulation Failure
Symptom
Smoker powers on but will not heat at all; set temperature shows correctly but interior stays cold.
Heating Element Open Circuit
Symptom
Smoker produces excessive white smoke and leaves heavy soot on food and interior surfaces.
Incomplete Combustion and Poor Ventilation
Symptom
Smoker shuts off randomly during a cook and may restart if you press power again.
Intermittent Power or Control Interruption
Symptom
Smoker takes an extremely long time to preheat, especially in cold or windy conditions.
Insufficient Heating in Adverse Conditions
Symptom
Smoker trips the household breaker or GFCI outlet when turned on or when heating starts.
Ground Fault or Short Circuit
Symptom
Smoker vibrates excessively or rattles when heating.
Loose Internal Components or Uneven Support
Symptom
Smoker will not power on at all; display is blank and no lights or sounds.
No AC Power to Control System
Symptom
Strong burnt plastic or electrical smell coming from the smoker during operation.
Overheating Electrical Components or Melting Insulation
Symptom
Water or grease is leaking from the bottom of the smoker onto the ground or deck.
Drainage and Pan Overflow
Symptom
WiFi app cannot find or connect to the smoker, though the smoker operates manually.
WiFi Connectivity Issue
Symptom
Wood chips are not smoldering; very little or no smoke even though the smoker is hot.
Insufficient Chip Tray Heating or Airflow
Symptom
Wood chips ignite and burn with open flame instead of smoldering, causing high heat and bitter smoke.
Excessive Airflow or Chip Tray Overheating
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| Err1 |
Display shows “Err1” and smoker will not heat or start a cook cycle.
|
Temperature Probe Open or Disconnected | View Details |
| Err2 |
Display shows “Err2” and smoker shuts down or will not start heating.
|
Temperature Probe Shorted or Over-Range | View Details |
| Err3 |
Display shows “Err3” and smoker stops heating mid-cook or will not start.
|
High-Temperature Limit or Overheat Fault | View Details |
| Err4 |
Display shows “Err4” and controls are unresponsive or smoker shuts off unexpectedly.
|
Control Board Communication or Internal Fault | View Details |
| Err5 |
Display shows “Err5” and smoker will not heat or shuts down shortly after starting.
|
Heating Element Circuit Fault | View Details |
| Err6 |
Display shows “Err6” and remote or WiFi functions do not work while basic heating may still function.
|
Communication Error with Remote or WiFi Module | View Details |
| Err7 |
Display shows “Err7” and smoker will not start; sometimes accompanied by flickering display.
|
Low Voltage or Power Supply Fault | View Details |
| Err8 |
Display shows “Err8” and smoker will not maintain set temperature; may shut down unexpectedly.
|
Internal Control Calibration or Memory Fault | View Details |
| ErrP |
Display shows “ErrP” or similar probe error and meat probe temperature does not read correctly.
|
Meat Probe Sensor Fault | View Details |
| — |
Display shows dashes or “—” instead of temperature and smoker will not heat.
|
No Temperature Feedback to Control | View Details |
| – |
Buttons on the control panel stick or are hard to press.
|
Contaminated or Worn Membrane Keypad | View Details |
| – |
Condensation dripping from inside top of smoker onto food.
|
Excess Moisture Accumulation | View Details |
| – |
Digital display is very dim or unreadable in normal lighting, but smoker still functions.
|
Display Backlight or LED Failure | View Details |
| – |
Display lights up but buttons do not respond or respond intermittently.
|
Keypad or Control Panel Failure | View Details |
| – |
Door will not close fully or latch; gap remains even when pushing hard.
|
Door Alignment or Latch Failure | View Details |
| – |
Interior light does not turn on, but smoker heats and controls work normally.
|
Failed Cabinet Light Circuit | View Details |
| – |
Interior racks are difficult to slide in and out or tilt unexpectedly.
|
Rack Support Deformation or Contamination | View Details |
| – |
Meat probe reads very inaccurate temperatures (e.g., stuck at 32°F or jumps wildly).
|
Defective or Contaminated Meat Probe | View Details |
| – |
Paint or coating peeling on the inside of the door or cabinet.
|
Coating Degradation from Heat and Moisture | View Details |
| – |
Remote control will not pair or operate the smoker, but front panel works.
|
Remote Communication Failure | View Details |
| – |
Rust forming on interior surfaces, racks, or heating element shield.
|
Corrosion from Moisture and Residue | View Details |
| – |
Smoker heats but cannot reach set temperature; stalls 30–50°F below target even after long preheat.
|
Weak Heating Output or Heat Loss | View Details |
| – |
Smoker is leaking smoke heavily around the door edges and from corners of the cabinet.
|
Cabinet Seal and Panel Leakage | View Details |
| – |
Smoker makes loud popping or banging noises during heating and cooling.
|
Thermal Expansion of Metal Panels | View Details |
| – |
Smoker overheats well above the set temperature and food cooks too fast or burns.
|
Temperature Regulation Failure | View Details |
| – |
Smoker powers on but will not heat at all; set temperature shows correctly but interior stays cold.
|
Heating Element Open Circuit | View Details |
| – |
Smoker produces excessive white smoke and leaves heavy soot on food and interior surfaces.
|
Incomplete Combustion and Poor Ventilation | View Details |
| – |
Smoker shuts off randomly during a cook and may restart if you press power again.
|
Intermittent Power or Control Interruption | View Details |
| – |
Smoker takes an extremely long time to preheat, especially in cold or windy conditions.
|
Insufficient Heating in Adverse Conditions | View Details |
| – |
Smoker trips the household breaker or GFCI outlet when turned on or when heating starts.
|
Ground Fault or Short Circuit | View Details |
| – |
Smoker vibrates excessively or rattles when heating.
|
Loose Internal Components or Uneven Support | View Details |
| – |
Smoker will not power on at all; display is blank and no lights or sounds.
|
No AC Power to Control System | View Details |
| – |
Strong burnt plastic or electrical smell coming from the smoker during operation.
|
Overheating Electrical Components or Melting Insulation | View Details |
| – |
Water or grease is leaking from the bottom of the smoker onto the ground or deck.
|
Drainage and Pan Overflow | View Details |
| – |
WiFi app cannot find or connect to the smoker, though the smoker operates manually.
|
WiFi Connectivity Issue | View Details |
| – |
Wood chips are not smoldering; very little or no smoke even though the smoker is hot.
|
Insufficient Chip Tray Heating or Airflow | View Details |
| – |
Wood chips ignite and burn with open flame instead of smoldering, causing high heat and bitter smoke.
|
Excessive Airflow or Chip Tray Overheating | View Details |
No matching codes found
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