Nordyne
Central Air Conditioner

Model # MT3BC042KA Official Nordyne 10 seer split-system heat pump

Here are the diagrams and repair parts for Official Nordyne MT3BC042KA 10 seer split-system heat pump, 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 92 parts  |

Accumulatr 668793
#8

Split system heat pump diagram

Accumulatr

Part #668793

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

Central Air Conditioner Condenser Fan Motor 621911
#23A

Split system heat pump diagram

Central air conditioner condenser fan motor

Part #621911

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

Thermostat 626520
#20

Split system heat pump diagram

Thermostat

Part #626520

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

Cap Strap 258780
#18A

Split system heat pump diagram

Cap strap

Part #258780

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

Central Air Conditioner Condenser Fan Blade 667303
#24A

Split system heat pump diagram

Central air conditioner condenser fan blade

Part #667303

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

Fan Grille 669334
#25

Split system heat pump diagram

Fan grille

Part #669334

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

Valve,frig 663862
#7

Split system heat pump diagram

Valve,frig

Part #663862

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

Def Sensor 626491
#13

Split system heat pump diagram

Def sensor

Part #626491

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

Restrictor 664065

#NI07

All parts diagram

Restrictor

Part #664065

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

Distributor 663581
#9C

Split system heat pump diagram

Distributor

Part #663581

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

Symptoms for electric water heaters

Main causes: excessive tank sediment, high voltage supply…

Main causes: thermostats need adjustment, bad heating elements, faulty thermostats, tank sediment build-up, broken dip t…

Repair guides for electric water heaters

How to replace a water heater element

How to replace a water heater element

If your water heater runs out of hot water quickly and one of the two heating elements has failed, replace the element f…

Repair difficulty
Time required
 30 minutes or less
How to replace an electric water heater thermostat

How to replace an electric water heater thermostat

If the water temperature fluctuates or you don't get enough hot water, follow these instructions to replace your water h…

Repair difficulty
Time required
 30 minutes or less
How to replace a water heater temperature and pressure (T&P) relief valve

How to replace a water heater temperature and pressure (T&P) relief valve

Replace a broken temperature/pressure (T&P) relief valve on an electric water heater using these instructions.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your central air conditioners

Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

How to prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

Get tips to help keep your central AC running all summer long…

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.…