Finish Thompson LS-55IIE - Manual (Page 22)

21
LS SERIES STILLS: BASIC TROUBLESHOOTING TIPS CONTINUED…
PROBLEM
: Stilbags break or melt during a cycle or while lifting out residue.
POSSIBLE CAUSES:
 Temperature too hot. The standard temp Stilbags will become brittle if overheated. Try the hi-temp Stilbags.
 Stilbag used too long. The Stilbag is designed for a maximum of up to 16 hours and for a single use only.
 Chemical incompatibility. The Stilbags are made of “Nylon 6” and “Nylon 66.” Check compatibility with your
solvent supplier.
 Acid or caustic attack. The Stilbags are designed for use with solvents/residues with a pH between 6 and 9.
 Residue too heavy. The dirty/waste solvent should contain no more than 20% solids.
PROBLEM: Unit(s) will not turn on (no lights come on).
POSSIBLE CAUSES:
 No power to the Still. Verify the electrical power/connections to the Still.
 Blown fuse inside the Still’s control box (System II units only). Replace fuse. This would indicate an electrical
power surge or other problem with the circuitry (consult factory).
 Flow switch not engaged (LS-15E and LS-55E only). Verify proper condenser water supply. Clean or service the
flow switch.
 Controls have not reset (LS-15E and LS-55E only). Push the STOP/START switch to the STOP position for at
least five (5) seconds before pulling the switch back out.
PROBLEM: Only the green light comes on (System II only). Still not heating.
POSSIBLE CAUSES:
 Flowswitch not engaged. Verify proper condenser water supply. Clean or service the flowswitch.
PROBLEM: Only the white light comes on when the STOP/START switch is pulled (System II only).
POSSIBLE CAUSES:
 Controls have not reset. Push the STOP/START switch to the STOP position for at least five (5) seconds before
pulling the switch back out.