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Dunkirk
Boiler

Model # Q90-100 Official Dunkirk boiler & storage tank

Here are the diagrams and repair parts for Official Dunkirk Q90-100 boiler & storage tank, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Installation guide
Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 119 parts  |
Relief Valve 146-22-011
#6

Boiler block/piping assy diagram

Relief valve

Part #146-22-011

Replaced by #10-408-05

?
Manufacturer substitution
This part replaces 146-22-011. Substitute parts can look different from the original.
$44.77 | 
12% OFF Phone Price : $50.77
In Stock
Circulator 146-26-045
#NI

Jacket/base assy diagram

Circulator

Part #146-26-045

Replaced by #103251

?
Manufacturer substitution
This part replaces 146-26-045. Substitute parts can look different from the original.
$224.79 | 
5% OFF Phone Price : $236.79
In Stock
Burner 146-31-007
#2B

Mixer/air pressure switch assy diagram

Burner

Part #146-31-007

Replaced by #550001811

?
Manufacturer substitution
This part replaces 146-31-007. Substitute parts can look different from the original.
$359.63
In Stock
Blower 146-31-077
#5

Flue adapter/exhauster assy diagram

Blower

Part #146-31-077

Replaced by #2272065

?
Manufacturer substitution
This part replaces 146-31-077. Substitute parts can look different from the original.
$543.40 | 
$12.00 OFF Phone Price : $555.40
In Stock
Transformer 146-62-801
#8

Jacket/base assy diagram

Transformer

Part #146-62-801

Replaced by #550001339

?
Manufacturer substitution
This part replaces 146-62-801. Substitute parts can look different from the original.
$69.09
In Stock
Drain Valve 146-22-000
#19

Boiler block/piping assy diagram

Drain valve

Part #146-22-000

Replaced by #31-606-04

?
Manufacturer substitution
This part replaces 146-22-000. Substitute parts can look different from the original.
$36.16
In Stock
Back Panel, Blue 750-00-1023
#4

Jacket/base assy diagram

Back panel, blue

Part #750-00-1023

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

Pvc Nipple 1/2x4" 146-31-306
#6

Condensate drain trap assy diagram

Pvc nipple 1/2x4"

Part #146-31-306

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

Pipe 146-31-304
#1F

Flue adapter/exhauster assy diagram

Pipe

Part #146-31-304

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

Cover Plate 146-31-318
#16

Jacket/base assy diagram

Cover plate

Part #146-31-318

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

Symptoms for gas cooktops

Why won't my cooktop's gas burners ignite or spark?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …

Read more

Why isn't my cooktop's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…

Read more

Why do my cooktop's spark igniters keep clicking?

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

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Repair guides for gas cooktops

How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

Read more
Repair difficulty
Time required
 45 minutes or less

Articles and videos for gas cooktops

How is cooking on an electric range different than cooking on a gas stove?

How is cooking on an electric range different than cooking on a gas stove?

Learn about the differences between cooking on gas and electric stoves.…

Read more
5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

Read more
How to clean grates and burners on a gas cooktop video

How to clean grates and burners on a gas cooktop video

Find out how to clean the grates and burners on your gas cooktop.…

Read more

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