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Scheduled Maintenance
The manufacturer recommends that the operator periodically clean all flux residue from heating
elements and brackets. Excessive flux buildup on elements may cause hot spots and shorten element life.
Troubleshooting
The Keen oven model KF-100A requires a minimal amount of electrical knowledge to
repair if necessary.
IF OVEN FAILS TO OPERATE – NO HEAT
1. Check power source.
2. Check power cord continuity. Replace cord assembly if faulty. (Strain relief may have to be removed
from power cord to gain access.)
3. If cord and power supply check okay, remove leads from thermostat terminals and check for
continuity across terminals. If continuity is not present across thermostat terminals, replace
thermostat.
4. If thermostat is good, check continuity of elements and element wiring. If elements or wiring are
faulty, replace.
IF OVEN OVERHEATS
1. If oven overheats, adjust thermostat. (See “Temperature Setting” section.)
2. If thermostat calibration fails to lower temperature, replace thermostat. (See “Corrective
Maintenance” section.)
IF OVEN HEATS BUT FAILS TO REACH TEMPERATURE
1. Calibrate thermostat. (See “Temperature Setting” section.)