Model # FXB43-80DR-1 Official Whirlpool gas-fired hi-boy furnace

Here are the diagrams and repair parts for Official Whirlpool FXB43-80DR-1 gas-fired hi-boy furnace, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

Click a diagram to see the parts shown on that diagram.
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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 202 parts |

#11A

Blower assembly diagram

Motor 1/4 hp

Part #861650

Replaced by #45461

$207.04

In Stock

Qty

#4A

Burner and manifold assembly diagram

Gas valve

Part #864326

Replaced by #36C03-333

$277.97 |

$12.00 OFF Phone Price : $289.97

In Stock

Qty

#4C

Burner and manifold assembly diagram

Gas valve

Part #H601680

Replaced by #36C03-333

$277.97 |

$12.00 OFF Phone Price : $289.97

In Stock

Qty

#22A

Blower assembly diagram

Furnace blower wheel

Part #H600587

Replaced by #600587

$130.20 |

8% OFF Phone Price : $142.20

In Stock

Qty

Burner and manifold assembly diagram

Transformer

Part #864312

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

#10

Burner and manifold assembly diagram

Control

Part #862044

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

#17A

Burner and manifold assembly diagram

Tube pilot

Part #864332

Replaced by #100108370

$36.67

In Stock

Qty

#16A

Burner and manifold assembly diagram

Thermocouple

Part #862720

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

#25A

Blower assembly diagram

Furnace blower wheel

Part #862771

Replaced by #600586

$127.13 |

9% OFF Phone Price : $139.13

In Stock

Qty

#4B

Burner and manifold assembly diagram

Gas valve

Part #864327

Replaced by #36C53-418

$615.82 |

$12.00 OFF Phone Price : $627.82

In Stock

Qty

Symptoms for table saws

Choose a symptom to see related table saw repairs.

View all

Why does my table saw's blade spin too slow?

Main causes: worn motor brushes, faulty drive motor, using an improper extension cord…

Why doesn't my table saw start?

Main causes: lack of power, broken on/off switch, bad motor overload, broken power cord, bad drive motor…

Why can't I adjust the blade height on my table saw?

Main causes: saw dust build up, blade elevating and tilting mechanisms need lubrication…

Why does my table saw make bad angle cuts?

Main causes: blade alignment needs adjustment, worn blade, bevel positive stops need adjustments, bevel pointer needs ad…

Why does my table saw's overload trip?

Main causes: worn motor brushes, bad drive motor, faulty overload switch, using an improper extension cord, binding saw …

Why does my table saw make bad cuts?

Main causes: dirty saw blade, dull or damaged saw blade, blade alignment needs adjustment…

Repair guides for table saws

These step-by-step repair guides will help you safely fix what’s broken on your table saw.

View all

How to adjust a table saw blade

If the table saw isn’t cutting parallel to the miter gauge groove, adjust the cutting blade following the instructions i…

Repair difficulty

Time required

30 minutes or less

How to replace a table saw drive motor

You can replace a table saw drive motor that is weak or won't run. Here’s how.…

Repair difficulty

Time required

45 minutes or less

How to replace a table saw blade

If the table saw blade is dull or damaged, use these simple steps to replace it.…

Repair difficulty

Time required

15 minutes or less

Effective articles & videos to help repair your furnaces

Use the advice and tips in these articles to get the most out of your table saw.

View all

How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

Top questions about Sears and Sears PartsDirect

Model # FXB43-80DR-1 Official Whirlpool gas-fired hi-boy furnace

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for table saws

Why does my table saw's blade spin too slow?

Why doesn't my table saw start?

Why can't I adjust the blade height on my table saw?

Why does my table saw make bad angle cuts?

Why does my table saw's overload trip?

Why does my table saw make bad cuts?

Repair guides for table saws

How to adjust a table saw blade

How to replace a table saw drive motor

How to replace a table saw blade

Effective articles & videos to help repair your furnaces

How to get your furnace ready for winter

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Top questions about Sears and Sears PartsDirect

Stay Connected

Quick links

Let us help you

More resources