Check Thermal Cutoff - Graco InvisiPac GS35 Plug-Free Instruction Manual

Troubleshooting
Check Thermal Thermal Cutoff Cutoff
Check Check Thermal Cutoff
If working properly, the cutoff will trip at 450°F
(232°C) and resets at 370°F (187°C). If failure is
suspected, allow gun to cool and then check the
continuity of the thermal cutoff to verify it has not
failed. If there is no continuity, the cutoff has failed
and needs to be replaced.
1. Disable gun assembly. See
Before Beginning Repair, page
2. Remove cover plate.
3. Check for continuity using a multimeter between
pin of cordset connector and the wires from the
thermal cutoff that connects to the heater lead.
Cordset Cordset Cordset
24W087, Pt 100 (385)
RTD Cordset
24W088, Ni 120 RTD
Cordset
18
19.
Check Check Pins Check Pins Pins
A
1
Thermal Cutoff Cutoff
Thermal Thermal Cutoff
3A2805M