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NOTE: CHECK TANK FIRST – Majority of problems
are caused by using a liquid withdrawal tank
instead of a vapor withdrawal tank.
OPERATING ISSUE
CAUSES
Gun will not fire
Combustor turns red
*(insufficient fuel flow)
Large flame-fuel flow
* Leading edge of combustor turns red under normal
conditions. More than 1" of combustor turning red
indicates trouble.
PAGE 9 OF 27
TROUBLESHOOTING
Handle not fully depressed.
Handle depressed too quickly.
Pressure too low.
Handle not released fully.
Spark plug needs to be replaced.
Gas not turned on.
Wrong fuel.
Tank used up and tank pressure is
below 15 PSIG.
Excess flow check valve not open.
Clogged orifice and/or filter.
Clogged hose.
Clogged fuel line.
Leak in orifice assembly.
Wrong pressure.
RECOMMENDATIONS
Depress handle all the way until the igniter fires. Listen for a click.
Slowly squeeze handle to ensure mixture enters combustor before firing.
Check regulator.
Release handle and safety triggers to reset igniter.
Replace spark plug using the instructions included.
Check On/Off valve.
Check fuel type.
Switch to new tank.
Open tank valve and wait 10 seconds until hose is pressurized before using
gun.
Remove and clean with compressed air.
Blow or replace.
Blow out or replace.
Tighten orifice in holder and check.
Reset to 15-30 PSIG
1-800-295-5510
uline.com
0621 IH-6098
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