Henkel KEEN OVENS K-450 - Manual (Page 5)

Scheduled Maintenance
The manufacturer recommends that the unit be unloaded and cleaned of debris and dust
every six months. It is recommended that a temperature probe be placed inside the unit and the
thermostat calibration checked at this time.
Venting
Your model K-450 oven is vented through a screened plug at the rear of the oven.
Troubleshooting
The Keen oven model K-450 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.
3. If pilot light glows, voltage is being supplied to he heating element. Check element
continuity. If defective, replace.
4. If thermostat cannot be heard clicking on and off when dial is rotated, and if pilot light fails
to operate, replace thermostat
IF OVEN OVERHEATS
1. If oven fails to cycle on and off and reaches a temperature above 550ºF, thermostat is faulty
and needs replacing.
2. If oven operates but is off from setting see calibration instructions.
Corrective Maintenance
CHANGING THE HEATING ELEMENT
1. Disconnect power source and remove any rods from oven.
2. Remove element cover.
3. Remove element mounting nuts and top ceramic insulators.
4. Remove nine (9) mounting screws from leg assembly and lift oven clear of leg.
5. Remove wire connectors from element leads.
6. Remove old element from oven by lifting element over mounting bolts and pulling element
leads through conduit. Remove bottom ceramic insulators.
7. Install new male ceramic insulators, element, female insulators and hex nuts.
8. Insert element leads through conduit and reconnect with original electrical leads.
9. Replace front leg assembly being sure wiring is not crimped between leg and oven wall.