TROUBLESHOOTING GUIDE
PROBLEM: No power, main power switch light not energized
POSSIBLE CAUSES:
1. Power lines not wired properly into grounded wall outlet
2. Main fuse blown
3. Customer power defective
PROBLEM: Cabinet not heating, safeties not energized
POSSIBLE CAUSES:
1. Heater fuse blown
2. Snap disc open
3. Thermal fuse open
4. Main temperature control and/or sensor defective
5. Controller not programmed properly
6. Poor air circulation within the chamber
7. Solid State Relay Defective
PROBLEM: Cabinet not cooling, over-temp safety energized
POSSIBLE CAUSES:
1. Compressor switch is not on
2. Compressor is hot, trip out on thermal overload
3. Poor internal air circulation
4. Heat is remaining on
PROBLEM: Inconsistent temperature control and then over-temp safety energizes
POSSIBLE CAUSES:
1. Circulation fan defective
2. Temperature sensors out of position or defective
3. Controller not programmed properly
For further troubleshooting procedures, refer to the individual manuals for the controllers,
recorder, or contact CARON at 740-373-6809.
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