User Manual - Page 9

For MB20054018. Also, The document are for others Masterbuilt models: MB20053718, MB20053818, MB20053918, MB20054118, MB20054218

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9
TROUBLESHOOTING SOLUTIONS: “CAUSES LOW OR NO FLOW/VAPOR LOCK/EXCESS FLOW
Symptom Cause Possible Solution
Burner doesn’t light after pressing ignitor button Low/no gas ow 1. Turn smoker control knob to “O󰀨” position.
2. Turn gas cylinder valve knob to OFF.
3. Disconnect regulator from cylinder to relieve vapor lock.
4. Reconnect regulator to cylinder by hand turning until tight.
5. Slightly open the gas cylinder valve slowly and then open further by turning 1 full
turn.
6. You are now ready to light the smoker.
7. Turn the smoker control knob to high and light with ignitor.
Vapor lock at coupling nut to LP cylinder
Low ame output Excess ow valve tripped
Vapor lock at coupling nut/LP cylinder
connection
Flames blow out Excess ow valve tripped
Slower than expected cooking times Vapor lock
FAQ
• Was the temperature setting of the unit adjusted from a higher setting to a lower setting? For example, was the unit at 275 and changed to 225?
If yes, was the unit allowed to stabilize for 5 minutes at the new temperature setting before opening/closing the door(s)? If no, allow the unit to stabilize between set point changes for 5 minutes before opening
and closing the door(s). During this transition period the ame is vulnurable to potential blow outs, under certain conditions, because the pressure inside the burner is reduced while the temperature sensor is
adjusting to the lower set point.
• Is the vent open?
If no, open the vent to allow more heat to exit the unit. This will cause the unit to require more heat input to maintain its set point which will cause the unit to increase the ame height creating a stronger ame.
Is the water bowl lled?
If no, ll the water bowl. This will cause the unit to require more heat input to maintain its set point which will cause the unit to increase the ame height creating a stronger ame.
• Is outside wind greater than 5mph?
If yes, and all the above solutions did not improve the performance, raise the set point of the unit in order to cook in those conditions.
PARTS LIST
Actual product may di󰀨er from picture shown.
1
2
3
6
7
8
9
18
12
11
10
13
28
27
14
15
16
22
19
21
5
4
29
30
31
32
33
36
34
35
24
26
25
23
20
37
17
Parts that are preassembled at time of purchase should be ordered separately if replacement is needed.
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