Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Rheem
Furnace

Model # GUC Official Rheem gas-fired horizontal heating unit

Here are the diagrams and repair parts for Official Rheem GUC gas-fired horizontal heating unit, 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

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 245 parts  |
Thermocouple 62-18443-05
#31A

Replacement parts diagram

Thermocouple

Part #62-18443-05

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

Relay-plug 42-19423-01
#28

Replacement parts diagram

Relay-plug

Part #42-19423-01

Replaced by #WR90-370

?
Manufacturer substitution
This part replaces 42-19423-01. Substitute parts can look different from the original.
$21.63 | 
19% OFF Phone Price : $26.63
In Stock
Blower Wheel 70-18631-01

#NI

All parts diagram

Blower wheel

Part #70-18631-01

$191.76
In Stock
Blower Wheel 70-18625-01

#NI

All parts diagram

Blower wheel

Part #70-18625-01

$195.52
In Stock
Gas Valve 60-21103-01
#33

Replacement parts diagram

Gas valve

Part #60-21103-01

$764.05
In Stock
Orifice 62-20003-46
#29C

Replacement parts diagram

Orifice

Part #62-20003-46

$27.69
In Stock
Filter 54-17531-04

#NI

All parts diagram

Filter

Part #54-17531-04

$23.98
In Stock
Blow Cutoff AE-64401-07

#NI

All parts diagram

Blow cutoff

Part #AE-64401-07

$21.71
In Stock
Orifice 62-20003-47
#29B

Replacement parts diagram

Orifice

Part #62-20003-47

$27.69
In Stock
Blow Cutoff AE-64401-06

#NI

All parts diagram

Blow cutoff

Part #AE-64401-06

$24.11
In Stock

Symptoms for top-mount refrigerators

Why is there water in the bottom of the fridge under vegetable drawers?

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Read more

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace the evaporator fan motor in a top-freezer refrigerator

How to replace the evaporator fan motor in a top-freezer refrigerator

The evaporator fan motor blows air across the evaporator coils and through the refrigerator cabinet for cooling. Replace…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace the compressor start relay in a top-freezer refrigerator

How to replace the compressor start relay in a top-freezer refrigerator

The compressor start relay starts the compressor and shuts it off if the motor overheats. Replace the start relay if it'…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your furnaces

View all
How to get your furnace ready for winter

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.…

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

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.…

Read more
Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Read more

Parts & More