Troubleshooting
SYMPTOM CAUSE POSSIBLE SOLUTION
Smoker takes excessive amount of
time to heat up (longer than 60-70
min)
Smoker plugged into an extension
cord
Set smoker so extension cord does not
have to be used
Door not closed properly Close door and fasten latch securely
Controller malfunctioning Contact Masterbuilt at
https://www.masterbuilt.com/pages/customer-support
There is a gap between the door and
the smoker when in use and door latch
has no more adjustment
Door alignment Contact Masterbuilt at
https://www.masterbuilt.com/pages/customer-support
Damaged door seal
Grease is leaking out of smoker
through door and legs
Drip pan not in place Reposition so hole lines up with drain
hole in bottom of smoker
Excess grease or oil build-up in
smoker
Clean smoker
Drain tube in back of smoker is
not draining
Check drain tube positioning at back of
smoker
No smoke No wood chips Add wood chips (See page 15)
No smoke at low setting Not enough heat to induce
smoking
Increase temp to 275° F for 8 to 10
minutes, or when woodchips begin to
smolder then reduce to desired low
setting
Temperature rapidly decreased, or
shut down after a few hours of use
Internal wiring issue Contact Masterbuilt at
https://www.masterbuilt.com/pages/customer-support
Meat probe temperature does not
show on display
Probe port connection
malfunction
Contact Masterbuilt at
https://www.masterbuilt.com/pages/customer-support
Screen displays the word door when
the smoker door is closed
Door switch malfunction. 1. Reposition the door switch.
2. Check connection is fully seated.
Err 1
Temp probe connection error.
1. Check that connection is fully seated.
2. Unplug controller from power supply,
wait 10 seconds and reconnect.
Err 2
Meat probe malfunction.
Masterbuilt Customer Service
https://www.masterbuilt.com/pages/customer-
support
Err 3
Smoker overheat.
1. Turn off smoker.
2. Check for cause of overheat.
• Grease fi re.
3. Restart smoker.
Err 4
Smoker unable to reach
temperature.
Masterbuilt Customer Service
https://www.masterbuilt.com/pages/customer-
support
Err 5
Meat probe temp above 225F.
1. Using protective gloves, remove meat
probe from smoker.
2. Unplug from controller.
3. Allow meat probe to cool.
17
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