Masterbuilt MPS 340 G User Manual

Masterbuilt MPS 340 G

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Master it. Masterbuilt.

MPS 330G, MPS 340G

Welcome to the family. Let’s get started.

Manual Code: 9805180020 180830-GSB

PROPANE SMOKER

Manual applies to the following model number(s)

These numbers are located on the rating label of the unit.

Mfg. Date - Serial Number

Your model number

MB20053718, MB20053818, MB20053918, MB20054018,

MB20054118, MB20054218

Please record this information immediately and keep in a safe place for future use.

IMPORTANT

AGA certiﬁcate No. 8687 G

Table of Contents

Questions and Answers:

B
browncurtisAug 19, 2025
What to do if I have a grease fire or excessive flame in Masterbuilt MPS 340 G Smokers?
- R
  Robert LittleAug 19, 2025
  If you experience a grease fire or excessive/continuous flame in your Masterbuilt Smoker, it's likely due to grease build-up on or around the burner area. Immediately turn off both the smoker control knob and the gas cylinder valve. Allow the flames to extinguish and give the unit time to cool down. Then, clean grease and food particles from around the burner or burner area and surrounding surfaces.
J
Jorge SullivanAug 21, 2025
Why are the flames blowing out on my Masterbuilt Smoker?
- R
  Ryan YangAug 21, 2025
  If the flames are blowing out on your Masterbuilt Smoker, it is likely because the LP gas is low. Refill the LP cylinder.
P
pchaneyAug 23, 2025
What causes low flame output in Masterbuilt MPS 340 G?
- J
  Joshua SuttonAug 23, 2025
  Low flame output in your Masterbuilt Smoker is often caused by being out of fuel. Refill or replace with a full LP cylinder.
W
Wesley ThompsonAug 26, 2025
What to do if there is a flare-up in Masterbuilt MPS 340 G Smokers?
- J
  Julie ClarkAug 26, 2025
  A flare-up can occur in Masterbuilt Smokers due to several reasons. It could be caused by excessive grease buildup, in which case you should clean the burner and the inside of the unit. Another cause might be excessive fat on the meat being cooked, so trim the fat off the meat. Finally, the cooking temperature may be too high, so adjust or lower the temperature accordingly.
G
Gregory WardAug 28, 2025
Why is my Masterbuilt Smoker flame not staying lit?
- J
  Jill DennisAug 28, 2025
  If the flame does not remain lit after igniting on your Masterbuilt Smoker, it may be because the flame sensor wire is loose. To fix this, turn off the gas, disconnect the LP cylinder, and tighten the flame sensor wire to the valve.
E
Emily DanielAug 30, 2025
What to do if my Masterbuilt Smoker has a fire under the control panel?
- J
  Jennifer ChapmanAug 30, 2025
  If there is a fire under the control panel of your Masterbuilt Smoker, it is likely due to a fire in the burner tube caused by a burner blockage. Turn off both the smoker control knob and the gas cylinder valve. Once the fire is out and the burner has cooled, remove and inspect the burner for spiders, nests, rust, or other debris.
Z
Zachary MullinsSep 1, 2025
What to do for persistent grease fire in Masterbuilt MPS 340 G?
- K
  Kenneth OwensSep 2, 2025
  If you have a persistent grease fire in your Masterbuilt Smoker, it's likely because grease is trapped by food buildup around the burner system. Turn the smoker control knob and gas cylinder valve off. Allow the fire to extinguish and the unit to cool down. Once cool, remove and clean the affected parts.
X
xfrySep 4, 2025
What to do if my Masterbuilt Smoker has a flashback (fire in burner tube)?
- M
  mark49Sep 4, 2025
  If you experience a flashback (fire in the burner tube) in your Masterbuilt Smoker, it indicates that the burner and/or burner tube has a blockage. Turn the smoker control knob and gas cylinder valve off. Then, clean the burner and/or burner tube.

Masterbuilt MPS 340 G Specifications

General

Brand	Masterbuilt
Model	MPS 340 G
Category	Smokers
Type	Propane
Cooking Area	340 square inches
Number of Racks/Cooking Grates	2
Fuel Type	Propane
Material	Steel
Color	Black
Burner	1
Temperature Range	100°F to 400°F

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