Carrier
Air Handler

Model # FB4BNF018000AAAA Official Carrier fan coil

Here are the diagrams and repair parts for Official Carrier FB4BNF018000AAAA fan coil, 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 39 parts  |

Capactr Run P291-0503
#32B

Cabinet assy 1 diagram

Capactr run

Part #P291-0503

Replaced by #12005

?
Manufacturer substitution
This part replaces P291-0503. Substitute parts can look different from the original.
$16.12
11% OFF Phone Price : $18.12
In Stock
Central Air Conditioner Air Handler Transformer (replaces Ht01bd208) HT01CN241
Central air conditioner air handler transformer (replaces ht01bd208)

Part #HT01CN241

In Stock
Channel 316808-301
#47

Coil assy diagram

Channel

Part #316808-301

This item is not returnable
In Stock
Fuse ATC5
#NI

Cabinet assy 1 diagram

Fuse

Part #ATC5

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

Connector HY90AZ021
Connector

Part #HY90AZ021

This item is not returnable
In Stock
Bracket 314900-201
#6

Cabinet assy 2 diagram

Bracket

Part #314900-201

In Stock
Central Air Conditioner Air Handler Fan Control Board HK61EA006
Central air conditioner air handler fan control board

Part #HK61EA006

This item is not returnable
$93.96
5% OFF Phone Price : $98.96
In Stock
Distr Liqd 319072-402
#49

Coil assy diagram

Distr liqd

Part #319072-402

In Stock
Central Air Conditioner Air Handler Blower Motor HC37AE198
#32A

Cabinet assy 1 diagram

Central air conditioner air handler blower motor

Part #HC37AE198

In Stock
Central Air Conditioner Evaporator Coil Assembly 316224-757
Central air conditioner evaporator coil assembly

Part #316224-757

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

Symptoms for gas ranges

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

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

Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

Repair difficulty
Time required
 15 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Repair difficulty
Time required
 60 minutes or less
How to replace a gas range oven control board

How to replace a gas range oven control board

These step-by-step instructions explain how to replace an oven control board on a gas range…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your air handlers

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.…