Janitrol
Furnace

Model # GUN075-3B Official Janitrol gas furnace

Here are the diagrams and repair parts for Official Janitrol GUN075-3B gas 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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ALL PARTS
Showing 10 of 97 parts  |

Motor B13400-12
#2

Blower assembly diagram

Motor

Part #B13400-12

Replaced by #B13400-21S

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Manufacturer substitution
This part replaces B13400-12. Substitute parts can look different from the original.
In Stock
Flue Collector (gun050-2b, Gun075-3b, Gus050-2, Gus075-3) 18812-14
#7

Heat exchanger assembly diagram

Flue collector (gun050-2b, gun075-3b, gus050-2, gus075-3)

Part #18812-14

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

Secondary Ai 18224-10
#5B

Heat exchanger assembly diagram

Secondary ai

Part #18224-10

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

Burner Box Wrapper (gus050-2, Gus075-3) Gasket Kit Should Be Ordered When Replacing These Parts 18820-00
#13

Heat exchanger assembly diagram

Burner box wrapper (gus050-2, gus075-3) gasket kit should be ordered when replacing these parts

Part #18820-00

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

Pilot Assembly 14010-03S
#8

Gas train diagram

Pilot assembly

Part #14010-03S

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

Top Channel (gun050-2b, Gun075-3b, Gus050-2, Gus075-3) 18221-04S
#2

Casing diagram

Top channel (gun050-2b, gun075-3b, gus050-2, gus075-3)

Part #18221-04S

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

Gasket Kit 13926-103
#16

Heat exchanger assembly diagram

Gasket kit

Part #13926-103

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

Blwr Asm,ser 18682-01S
#8A

Blower assembly diagram

Blwr asm,ser

Part #18682-01S

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

Top Channel (gun125-5b, Gus125-5) 18221-06S
#2B

Casing diagram

Top channel (gun125-5b, gus125-5)

Part #18221-06S

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

Manifold, 3 B18264-17
#6A

Gas train diagram

Manifold, 3

Part #B18264-17

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

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