Graco ThermoLazer 200 - Troubleshooting

Troubleshooting
3A1320L 35
Troubleshooting
Problem Cause Solution
Kettle pilot burner does
not ignite or does not
remain ignited
Low or empty LP-gas tank Replace with full tank.
Gas supply hose not connected to tank Connect gas supply hose.
LP-gas tank shut-off valve closed Open LP-gas tank shut-off valve.
Manual gas shut-off valve closed Open manual gas shut-off valve.
Gas lines leaking or disconnected Check for gas leaks. Connect and tighten fit-
tings.
Kettle gas safety valve knob not in correct posi-
tion
Turn knob to “PILOT” position and fully push
in (see Operation manual).
Not providing adequate time for thermopile to
heat up
See Operation manual.
Kettle pilot igniter has weak battery Replace part (see Parts manual).
Kettle pilot electrode gap incorrect Adjust gap (see page 11).
Incorrect flame length and/or gas pressure Adjust flame and pressure (see Repair man-
ual).
Strong wind blowing flame out Move ThermoLazer out of strong winds.
Make sure burner view ports are closed.
Burner and/or gas lines plugged Unplug holes and lines. Isolate all gas regu-
lators if clearing line with forced air (see
page 6).
Kettle gas safety valve not functioning correctly Replace part if it fails diagnostic test (see
page 6).
Thermopile not functioning correctly Replace part if it fails diagnostic test (see
page 12).
Kettle pilot electrode ground wire not correctly
connected
Clean connections and retighten. Replace
ground wire if damaged.
Kettle pilot electrode lead wire has a short Replace part (see Parts manual).
Kettle pilot igniter not functioning correctly Replace part (see Parts manual).
Kettle burner regulator not functioning correctly Replace part (see Parts manual).
Kettle burners shut off
before material is melted
Material level is low Add material to kettle. Once material level is
up to thermometer, this condition will be cor-
rected.
ProMelt Only Over temperature safety switch not functioning
correctly
Replace part (see Parts manual).