Ducane
Furnace

Model # UHZB100A4 Official Ducane 1/2-hp upflow horizontal oil furnace

Here are the diagrams and repair parts for Official Ducane UHZB100A4 1/2-hp upflow horizontal oil furnace, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 70 parts  |

Door Handle B1008866

#15

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Door handle

Part #B1008866

The manufacturer no longer makes this part, and there's no substitute part

Stud, Burner Mount (3) 20124501

#48

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Stud, burner mount (3)

Part #20124501

The manufacturer no longer makes this part, and there's no substitute part

Bottom Front Leg 20198101

#51

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Bottom front leg

Part #20198101

The manufacturer no longer makes this part, and there's no substitute part

Elbow, Flue (6" Dia.) 20124901

#55

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Elbow, flue (6" dia.)

Part #20124901

The manufacturer no longer makes this part, and there's no substitute part

Bottom Rear Leg 20198002

#53

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Bottom rear leg

Part #20198002

The manufacturer no longer makes this part, and there's no substitute part

Screw B1008786

#47

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Screw

Part #B1008786

The manufacturer no longer makes this part, and there's no substitute part

Front Door  Dark Beige 20121001

#5

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Front door dark beige

Part #20121001

The manufacturer no longer makes this part, and there's no substitute part

Heat Exchanger (includes No. 34-53) 20422003

#33

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Heat exchanger (includes no. 34-53)

Part #20422003

The manufacturer no longer makes this part, and there's no substitute part

Transformer, 40 Va 20054401

#31

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Transformer, 40 va

Part #20054401

The manufacturer no longer makes this part, and there's no substitute part

Rosette Observation Tube 20121501

#11

All parts diagram

Rosette observation tube

Part #20121501

The manufacturer no longer makes this part, and there's no substitute part

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How to replace a freezer door switch

When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…

Repair difficulty
Time required
 15 minutes or less
How to replace a freezer thermistor

How to replace a freezer thermistor

When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…

Repair difficulty
Time required
 45 minutes or less

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