Master Forge 3218LTN User manual

1Lowes.com/masterfor
g
e
ATTACH YOUR RECEIPT HERE
Serial Number Purchase Date
Questions, problems, missing parts? Before returning to your retailer, call our
customer service department at 1-800-963-0211, 8:00 a.m. to 6:00 p.m., EST,
Monday-Thursday, 8:00 a.m. to 5:00 p.m., EST, Friday.
5
-B
U
RNER
G
A
S
G
RILL
ITEM #0006554
MODEL #3218LTN
Español p. 53
Master Forge & M Design
®
is a registered
trademark of LF, LLC. All rights reserved.
WARNING
1. Do not store or use gasoline or
other flammable vapors and
liquids in the vicinity of this or
any other appliance.
2. An LP tank not connected for
use should not be stored in the
vicinity of this or any other
appliance.
DANGER
If you smell gas:
1. Shut off gas to the appliance.
2. Extinguish any open flames.
3. Open the lid.
4. If the odor continues, keep
away from the appliance and
immediately call your gas
supplier or fire department.
WARNING
For Outdoor Use Only
WARNING
Improper installation,
adjustment, alteration, service
or maintenance can cause
injury or property damage.
Read this instruction manual
thoroughly before installing or
servicing this equipment.
AB13567
○
R

TABLE OF CONTENTS
2Lowes.com/masterfor
g
e
Safety Information ................................................................................................................3
Safety Tips……………………………………………………………………………………………5
Package Contents .................................................................................................................6
Hardware Contents ...............................................................................................................8
Preparation ............................................................................................................................8
Assembly Instructions ..........................................................................................................9
Cooking with Gas ................................................................................................................24
Operating Instructions ........................................................................................................31
Care and Maintenance .........................................................................................................38
Troubleshooting ..................................................................................................................46
Warranty ...............................................................................................................................49
Replacement Parts List .......................................................................................................50

SAFETY INFORMATION
3 Lowes.com/masterfor
g
e
12.2 in.
18 in.
8 in.
13.9 in.
Please read and understand this entire manual before attempting to assemble, operate
or install the product. If you have any questions regarding the product, please call
customer service at 1-800-963-0211, 8:00 am to 6:00 pm, EST, Monday- Thursday, 8:00
a.m. to 5:00 p.m., EST, Friday.
1 The installation of this appliance must conform with local codes or, in the absence of local
codes, with either the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or Natural Gas and
Propane Installation Code, CSA/CGA-B149.1.
2 This grill is intended for use outdoors and should not be used in a building, garage or any
other enclosed or covered area.
3 This outdoor grill is not intended for installation in or on recreation vehicles and/or boats.
4 A minimum clearance of 36 inches from combustible constructions to the sides of the grill
and 36 inches from the back of the grill to combustible constructions must be maintained.
This outdoor cooking gas appliance must not be placed under overhead combustible
construction.
5 The use of an electrical source requires that when installed, the grill must be electrically
grounded in accordance with local codes or, in the absence of local codes, with
ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1. Keep electrical supply cords
and the fuel supply hose away from heated surfaces.
6 Inspect the hoses before each use for excessive abrasion or wear, or cuts that may affect
safe operation of the grill. If there is evidence of excessive abrasion or wear, or the hose is
cut, it must be replaced prior to the grill being put into operation. The replacement hose
assembly must be those specified by the manufacturer.
7 Keep your grill in an area clear and free from combustible materials, gasoline and other
flammable vapors and liquids.
8 DO NOT obstruct the flow of combustion and ventilation air to this appliance.
9 Keep the ventilation openings of the tank enclosure free and clear from debris.
10 Check all gas connections for leaks with a soapy water solution and brush. Never use an
open flame to check for leaks.
11 Never use charcoal in the grill.
12 Never use the grill in windy areas.
13 Only a 20 lb. LP-gas cylinder is allowed. The cylinder must be
constructed and marked in accordance with the Specifications for
LP Gas Cylinders of the U.S. Department of Transportation (D.O.T.)
or the National Standard of Canada, CAN/CSA-B339, Cylinders,
Spheres and Tubes for Transportation of Dangerous Goods; and
Commission. A 20 lb LP-Gas cylinder dimensions are:
14 Never use the grill without the drip tray installed and pushed completely into the back of
the grill. Without the drip tray, hot grease and debris could leak downward and produce a
fire hazard.

SAFETY INFORMATION
4 Lowes.com/masterfor
g
e
15 The pressure regulator for LP-gas grill is set for 11-in. water column (WC). Natural gas grill
provides a hose assembly which includes a quick-disconnect device. But no pressure
regulator. The LP pressure regulator or the Natural gas hose assembly must be used.
Replacement pressure regulators and hose assemblies must be those specified in the
part list.
16 The cylinder used must include a collar to protect the cylinder valve.
17 Do not store a spare LP-gas cylinder under or near this appliance.
18 Never fill the cylinder beyond 80 percent full.
19 If the information in “17” and “18” is not followed exactly, a fire
causing death or serious injury may occur.
20 The natural gas grill and its individual shutoff valve must be disconnected from the gas
supply piping system during any pressure testing of that system at test pressures in
excess of 0.5 psi (3.5 kPa).
21 The outdoor cooking gas appliance must be isolated from the gas supply piping system by
closing its individual manual shutoff valve during any pressure testing of the gas supply
system at test pressures equal to or less than 1/2 psi (3.5kPa).
22 CALIFORNIA PROPOSITION 65 WARNING: The burning of gas cooking fuel generates
some byproducts which are on the list of substances known by the State of California to
cause cancer, reproductive harm, or other birth defects. To reduce exposure to these
substances, always operate this unit according to the use and care manual, ensuring you
provide good ventilation when cooking with gas.
IMPORTANT: We urge you to read this manual carefully and follow the recommendations
enclosed. This will ensure you receive the most enjoyable and trouble-free operation of your
new gas grill. We also advise you retain this manual for future reference.
WARNING: Your grill has been designed to operate using only the gas specified by the
manufacturer on the rating plate. Do not attempt to operate your grill on other gases. Failure
to follow this warning could lead to a fire hazard and bodily harm and will void your warranty.
WARNING: Make certain your LP (propane) tank is filled by a reputable propane dealer. An
incorrectly filled or an overfilled LP tank can be dangerous. The overfilled condition combined
with the warming of the LP tank (a hot summer day, tank left in the sun, etc.) can cause LP
gas to be released by the pressure relief valve on the tank since the temperature increase
causes the propane to expand. LP gas released from the tank is flammable and can be
explosive. Refer to your Owner’s Manual for more information concerning filling your LP tank.
This unit contains one or more patent pending:
61/163,753
61/215,319
11/495,104
11/268,051

SAFETY TIPS
5 Lowes.com/masterfor
g
e
Never pull your grill. Always push it.
Never move your grill while it is in operation or still hot.
Always use a protected hand when cleaning the grid surface after the post-heating period
and when closing the propane tank valve.
Use a covered hand during the grilling period.
Wait until the burner box has completely cooled before reaching under to turn off the gas.
Using an uncovered hand to turn off the LP tank valve without allowing the grill to cool
down could result in severe burns.
Never operate your grill under overhangs, awnings or any covered or enclosed area.
Never spray liquid on the grid area to control flare ups.
To guard against possible grease fires getting out of control, never leave a grill
unattended. Grease fires can be severe and cause grill damage, property damage and
bodily harm.
Always turn off the control knob first, and then the propane gas supply tank.
Never cover your grill while it is still warm.
Position your portable grill away from direct wind.
Do not store or use gasoline or other flammable substances in the vicinity of your gas grill.
Never store a propane tank (whether full or empty) inside your home or living area.
Before storing your tank, make sure that it has been turned to the “OFF” position.
Should you store your grill indoors, be sure to close the tank valve, disconnect the hose
from the tank, remove the tank from the grill and store the tank outdoors.
Make sure the grill hood is completely open before lighting your grill.
When connecting or replacing any gas fittings, all joints must be sealed with an approved,
leak-proof sealing compound.
Never use an open flame to test for gas leaks.
When your grill is not in use, it is recommended that for child safety, you remove the
control knobs and store them indoors.
Keep children away from the grill at all times.
Never drill out any orifice or make any field alterations to your grill without receiving
approval from the manufacturer.
Do not store flammable materials in any of the cabinets beneath the grill burner box or in
the vicinity of your grill.
Be careful while handling any parts during assembly. It is strongly recommended that you
protect your hands with a pair of work gloves.
At high temperatures some stainless grids may discolor over time. When the grill is cool,
wiping with a towel and vegetable oil may remove and treat some of this effect. Some
discoloration is normal.

PACKAGE CONTENTS
6 Lowes.com/masterfor
g
e

PACKAGE CONTENTS
7 Lowes.com/masterfor
g
e
Part Description Quantity Part Description Quantity
A Burner Box 1 Q Locking Caster 2
B Heat Tent 5 R Transformer 1
C Main Grid 3 S Main Bottom Panel 1
D Warming Rack 1 T Caster 2
E Sear Burner Grid 1 U Right Door 1
F Sear Burner
Drip Tray 1 V Right Skirt 1
G Grill Handle 1 W Main Beam 1
H Battery 5 X Center Door 1
I Left Rear Panel 1 Y Left Door 1
J Right Rear Panel 1 Z Left Skirt 1
K Center Panel 1 AB Left Panel 1
L Door Magnet 2 AC
Patented Safety Tank
Ring 1
M Bracket, Tank Ring 1 AD Buffet Table 1
N Shelf board 1 AE Drip Tray Support 1
O Tank Support 1 AF Main Burner Drip Tray 1
P Right Panel 1 AG Battery Box 1

HARDWARE CONTENTS
8 Lowes.com/masterfor
g
e
PREPARATION
Before beginning assembly of product, make sure all parts are present. Compare parts
with package contents list and diagram above. If any part is missing or damaged, do not
attempt to assemble the product. Contact customer service for replacement parts.
Estimated Assembly Time: 50 minutes by 2 people
Tools Required for Assembly: Phillips screwdriver (sold separately)
AA BB DD EECC
1/4-20 x 5/8 in.
Screw
Qty. 57
5/32-32 x 3/8 in.
Screw
Qty. 6
Flat Head 5/32-32
x 1/2 in. Screw
Qty. 8
3/16-24 x 1/2 in.
Screw
Qty. 4
Nut
Qty. 2
FF
Wrench
Qty. 1

ASSEMBLY INSTRUCTIONS
9 Lowes.com/masterfor
g
e
WARNING: The grill should be assembled and placed on a flat level surface.
Compare the parts and hardware with the list and diagrams. Do not attempt assembly if
any part is missing or damaged.
1. Align the casters (Q and T) with the holes
of the main bottom panel (S).
Use the wrench (FF) to tighten. When this
process is completed, turn the bottom panel
over.
The two locking casters (Q) should be at
the back of the grill. (Fig. 1)
2. Attach the tank support (O) to the main
bottom panel (S) with six screws (BB).
(Fig. 2)
Hardware Used
1/4-20 x 5/8 in.
Screw X 6
BB
2
BB
O
S
S
1
T
Q

ASSEMBLY INSTRUCTIONS
10 Lowes.com/masterfor
g
e
3. Align the holes in the left rear panel (I)
with the holes in the main bottom panel (S) and
insert the screws (BB) into the aligned holes.
(Fig. 3)
Note: Do not tighten the screws completely.
Leave at least one full turn on each.
After all the screws have been installed,
go back and tighten them fully.
4. For left panel (AB), there are six
screws (BB) to connect to the left rear panel (I)
and main bottom panel (S), three in the rear
and three inside the cabinet. Insert the screws
into the aligned holes and tighten them. The
three screws inside the cabinet should be
engaged first. (Fig. 4)
Hardware Used
1/4-20 x 5/8 in.
Screw X 4
BB
Hardware Used
1/4-20 x 5/8 in.
Screw X 6
BB
3 I
S
BB
4
AB I
BB
S

ASSEMBLY INSTRUCTIONS
11 Lowes.com/masterfor
g
e
5. Align the holes in the Center Panel (K)
with the holes in the main bottom panel (S)
and insert the screws (BB) into the
aligned holes and tighten them. (Fig. 5)
Note: Do not tighten the screws completely.
Leave at least one full turn on each.
6. For right rear panel (J), there are four
screws (BB) to connect to the left rear panel (I)
and main bottom panel (S), three in the rear
and one inside the cabinet. Insert the screws
into the aligned holes. After all the screws
have been installed, tighten the three screws
installed during step 5 and the one inside the
cabinet first, and then tighten the three in the
rear. (Fig. 6)
Hardware Used
1/4-20 x 5/8 in.
Screw X 3
BB
Hardware Used
1/4-20 x 5/8 in.
Screw X 4
BB
5 K
S BB
6
J
BB
I
S

ASSEMBLY INSTRUCTIONS
12 Lowes.com/masterfor
g
e
7. Slide the tank ring bracket (M) to the end
of the patented safety tank ring (AC) as shown.
Then align the holes in the ring bracket with
left rear panel (I), insert screws (BB)
into the holes from outside of grill, and then
tighten completely.
(Fig. 7)
8. For the door magnet (L), there are four
screws (CC) to connect to the center panel (K).
Insert the screws into the aligned holes and
tighten them. (Fig. 8)
Hardware Used
1/4-20 x 5/8 in.
Screw X 2
BB
7 BB
M
AC
I
8
CC
L
K
CC
Hardware Used
5/32-32 x 3/8 in.
Screw X 4

ASSEMBLY INSTRUCTIONS
13 Lowes.com/masterfor
g
e
9. For right panel (P), there are six screws
(BB) to connect to the right rear panel (J) and
the main bottom panel (S), three in the rear and
three inside the cabinet. Insert the screws into
the aligned holes and tighten them. The three
screws inside the cabinet should be engaged
first. (Fig. 9)
10. For shelf board (N), there are four screws
(BB) to connect to the center panel (K) and
the right panel (P).
Insert the screws into the aligned holes and
tighten them. (Fig. 10)
Hardware Used
1/4-20 x 5/8 in.
Screw X 6
BB
Hardware Used
1/4-20 x 5/8 in.
Screw X 4
BB
10 K
P
BB N
9 J
P
BB
S

ASSEMBLY INSTRUCTIONS
14 Lowes.com/masterfor
g
e
11. For left skirt (Z), there are four screws (BB)
to connect to the left panel (AB) and main bottom
panel (S), two in the left panel and two inside
the cabinet. Make sure the tab A is locked in place.
Insert the screws into the aligned holes and tighten
them. The two screws inside the cabinet should be
engaged first. (Fig. 11)
12. Insert the “Tab A” in right skirt (V) into
the square hole in the Center Panel (K) and
push down. Make sure the tab is locked in
place. For this skirt, there are four screws
(BB) to connect to the center panel (K) and
main bottom panel (S), two in the middle
panel and two inside the cabinet. Insert the
screws into the aligned holes and tighten them.
The two screws inside the cabinet should be
engaged first. (Fig. 12)
Hardware Used
1/4-20 x 5/8 in.
Screw X 4
BB
Tab A
12
BB
V
K
S
11
BB
Z AB
S
Tab A
Hardware Used
1/4-20 x 5/8 in.
Screw X 4
BB

ASSEMBLY INSTRUCTIONS
15 Lowes.com/masterfor
g
e
13. Align the holes in the hinges of the two
doors (X and Y) with the two skirts (V and Z),
insert flat head screws (DD) into the holes,
and then tighten. (Fig. 13)
14. Align the holes in the main beam (W)
with side panels (P and AB) and two skirts
(V and Z), insert screws (BB) into the holes,
and then tighten.
There are four screws to connect the side
panels and two screws to connect the skirts.
(Fig. 14)
Hardware Used
1/4-20 x 5/8 in.
Screw X 6
BB
Hardware Used
Flat Head 5/32-32
x 1/2 in. Screw X 8
DD
Y
X
DD
13
V
Z
P W
14
V Z
BB
AB

ASSEMBLY INSTRUCTIONS
16 Lowes.com/masterfor
g
e
15. For right door (U), insert bottom hinge
pin into hole in the main bottom panel (S).
Push down on top hinge pin to insert into
hole on the main beam (W). Loosen the
screws holding the magnets to center
panel (K). Adjust magnets to contact the
right door, then tighten the screws again.
(Fig. 15)
16. Align the holes in the drip tray support
(AE) with the holes in the main beam (W)
and in the left rear panel (I). Insert screws (BB)
into the holes and tighten them.
Note the orientation of the drip tray support
as shown. (Fig. 16)
Hardware Used
1/4-20 x 5/8 in.
Screw X 4
BB
16 BB
AE
W
I
U
W
15 K
S

ASSEMBLY INSTRUCTIONS
17 Lowes.com/masterfor
g
e
17. Slide the main burner drip tray (AF)
between the drip tray support (AE) from
the back of grill. (Fig. 17)
18. Attach the battery box (AG) to the left
panel (AB) with screws (CC) and nuts (AA).
(Fig. 18)
17
AF
AE
CC
AA
AG
AB
18
Nut
CC 5/32-32 x 3/8 in.
Screw X 2
Hardware Used
AA X 2

ASSEMBLY INSTRUCTIONS
18 Lowes.com/masterfor
g
e
19. Take the pressure regulator out from under
the burner box (A). Then lift the burner box (A)
onto the cabinet, making sure that the gas
pressure regulator is in the cabinet, then position
burner box on the cabinet by aligning the four
tabs on top of the cabinet with the holes in the
burner box. Fasten the burner box to the
cabinet with 4 screws (BB). (Fig. 19)
20. Route the light wire from the burner box (A)
through the bottom of the burner box into the
cabinet. Then pull the wire through the
opening in the left rear panel (I).
(Fig. 20)
Hardware Used
1/4-20 x 5/8 in.
Screw X 4
BB
I light wire
20
BB
19 A
Tab
Pressure
regulator

ASSEMBLY INSTRUCTIONS
19 Lowes.com/masterfor
g
e
21. Connect the connector which is on the end
of the light wire from step 20 to the transformer (R).
Push the connector to mate firmly with the
transformer. Then, screw and tighten the cap on
the connector. (Fig. 21)
22. On the NG model, pass the natural
gas hose through the hole in the left rear
panel (I) to your gas supply system.
(Fig. 22)
23. Move the covers away the bases of the
grill handle (G), align the holes in the
bases with the holes of the burner box (A).
Insert screws (EE) into the aligned holes
and then tighten them. After tightening the
screws, move the covers onto the bases.
(Fig. 23)
22
NG hose
I
EE
23
G
A
I
R
21
connector
Hardware Used
3/16-24 x1/2 in.
Screw X 4
EE

ASSEMBLY INSTRUCTIONS
20 Lowes.com/masterfor
g
e
24. Loosen the eight screws in the side
panel of burner box and the bottom panel
three turns. This will allow for quick assembly
of the buffet table. (Fig. 24)
25. Align the holes of the hinges in the
buffet table (AD) with the holes in the burner
box and the main bottom panel.
Tighten the eight screws loosened during
step 24. (Fig. 25)
24
25 AD