Troubleshooting
SYMPTOM
Controller not ON.
Fan not ON.
Controller temperature
inaccurate.
Slow heating.
Err 1
Err 2
Err 3
Err 4
Err 5
Poor WIFI connection
64
CAUSE
Power not ON.
Not plugged in.
Circuit breaker tripped.
Controller malfunction.
Temperature in cabinet has reached the set
temperature.
Bottom door is open.
Top door is open
Fan disconnected from controller.
Fan disconnected from wiring harness.
Bottom door switch disconnected.
Top door switch disconnected.
Err 3
Temperature probe not fully plugged in.
Temperature probe is dirty.
Charcoal partition inserted.
Lump charcoal
Heat deflector tent flipped and rotated.
Low charcoal.
Smoker door open.
Temperature probe not fully plugged in.
Meat probe malfunction. Controller still
works, fan still works, product operation is
not impacted.
Smoker overheated.
Charcoal failed to ignite.
Meat Probe Temp above 300°F.
Weak signal.
POSSIBLE SOLUTION
Press the power button on the controller. (do not press
and hold button)
Plug controller into power supply and power supply into
wall outlet.
Check wall outlet circuit breaker and reset if tripped.
May need to move to a different outlet.
Contact Masterbuilt Customer Service.
Once the set temperature is reached the fan will turn
off. Once the temperature falls below the set tempera-
ture the fan will restart. The fan will continue adjusting
itself automatically to maintain the set temperature.
For safety, the smoker is equipped with shut off switch-
es to prevent the fan from stoking the fire when the
doors are open. Closing the doors will engage the
switches, allowing the fan to continue normal operation.
Check that connection is fully seated.
See below.
Check that connection is fully seated.
Carefully clean temperature probe.
Remove the charcoal partition when cooking at tem-
peratures 275ºF and above.
Use charcoal briquettes instead of lump charcoal for a
more efficient burn. Sometimes, lump charcoal has a
hard time lighting due to the density of the charcoal.
Ensure heat deflector tent is in the upright position
when cooking at temperatures 230ºF - 400ºF.
Ensure that the charcoal basket has enough charcoal
to bring the smoker to temperature when starting the
smoker.
Close the smoker doors.
1. Check that connection is fully seated.
2. Unplug controller from power supply, wait 10 seconds
and reconnect.
Contact Masterbuilt Customer Service.
1. Turn off smoker.
2. Check for cause of overheat.
• Grease fire.
• Fan malfunction.
3. Restart smoker.
1. Ensure firestarter was placed in the charcoal basket
on the side closest to the fan.
2. Ensure both smoker doors are fully closed.
3. Ensure charcoal is not empty.
4. Ensure old ash from previous use has not blocked
up the charcoal basket. Be sure to clean the charcoal
basket and ash tray before starting the smoker.
5. Restart the smoker.
1. Using protective gloves, remove meat probe from
smoker.
2. Unplug from controller.
3. Allow meat probe to cool.
1. Angle the antenna on back of controller to point at the
ground