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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.

 

Содержание K-450

Страница 1: ...Henkel Inc P O Box 1322 Hammond LA 70404 985 345 2171 www keenovens com...

Страница 2: ...vers only equipment manufactured by Henkel Inc and does not extend to transportation installation or replacement charges at the buyers facility nor does it apply to any other equipment of another manu...

Страница 3: ...meplate of the unit Check outlet to ensure proper grounding of the electrical cable Have a licensed electrician check the A C power outlet if you are not sure Use this unit for its intended purpose as...

Страница 4: ...from 150 F 37 8 C to 550 F 287 8 C Turn thermostat knob to desired temperature by aligning with red line on chrome bezel Pilot light indicates when power is supplied to the heating element The thermos...

Страница 5: ...f pilot light fails to operate replace thermostat IF OVEN OVERHEATS 1 If oven fails to cycle on and off and reaches a temperature above 550 F thermostat is faulty and needs replacing 2 If oven operate...

Страница 6: ...em and check rotation of knob When knob turns freely remove and tighten chrome mounting ring bezel 240 Volts 1000 Watts Grounding Plug NEMA 5 15P 9 Replace leg assembly being sure wiring is not crimpe...

Страница 7: ...Cord 301155 10 1 Elements 301027 301125 301129 11 1 Element Cover 12 1 Name Plate 450103 13 1 Strain Relief 301043 480V 1000W 120V 240V 480V 240V1000W 120V1000W Please state model number and serial nu...

Страница 8: ...r Stainless Inconel Monel Nickel Brasses Bronzes Hard Surfacing Special Alloys 90 F 20 50 RH max 225 F 50 Two hour total Granulated or Agglomerated Flux 90 F 20 50 RH max 240 F 50 Not required 700 F 1...

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