Nordyne
Central Air Conditioner

Model # MT5BD-024K Official Nordyne heat pump

Here are the diagrams and repair parts for Official Nordyne MT5BD-024K heat pump, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 42 parts  |

Def Control 917178A
#19

Heat pump diagram

Def control

Part #917178A

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

Valve,frig 663862
#7

Heat pump diagram

Valve,frig

Part #663862

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

Guard Kit 917206
#12A

Heat pump diagram

Guard kit

Part #917206

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

Central Air Conditioner Dual-motor Run Capacitor 620777
#17

Heat pump diagram

Central air conditioner dual-motor run capacitor

Part #620777

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

Def Sensor 626491
#NI

Heat pump diagram

Def sensor

Part #626491

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

Thermostat 626520
#NI

Heat pump diagram

Thermostat

Part #626520

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

Hrdstart 632464
#NI

Heat pump diagram

Hrdstart

Part #632464

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

Rev Valve 669464
#3A

Heat pump diagram

Rev valve

Part #669464

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

Valve Coil 669459
#10

Heat pump diagram

Valve coil

Part #669459

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

Contactor 621661
#16

Heat pump diagram

Contactor

Part #621661

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

Symptoms for upright freezers

Main causes: clogged or frozen defrost drain tube…

Repair guides for upright freezers

How to replace a freezer door switch

How to replace a freezer door switch

When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…

Repair difficulty
Time required
 15 minutes or less
How to replace a freezer thermistor

How to replace a freezer thermistor

When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…

Repair difficulty
Time required
 45 minutes or less
How to replace a freezer evaporator fan

How to replace a freezer evaporator fan

Air won’t circulate to cool the freezer properly when the evaporator fan fails. Follow these step-by-step instructions t…

Repair difficulty
Time required
 45 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…

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Top questions about Sears and Sears PartsDirect

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