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Friedrich
Heating & Cooling Combined Unit

Model # THC15K25 Official Friedrich central packaged terminal unit

Here are the diagrams and repair parts for Official Friedrich THC15K25 central packaged terminal unit, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 103 parts  |
Thermostat 21059023

#NI08

All parts diagram

Thermostat

Part #21059023

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

Line Cord 21058584
#71B

Control box assembly diagram

Line cord

Part #21058584

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

Collar Assembly 25009700
#44A

Air handler diagram

Collar assembly

Part #25009700

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

Rework Kit 25010100

#NI13

All parts diagram

Rework kit

Part #25010100

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

Access Cover 21062325
#32

Air handler diagram

Access cover

Part #21062325

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

Pump Condenser 25032900
#60A

Control box assembly diagram

Pump condenser

Part #25032900

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

Limit Switch 21058409
#50B

Air handler diagram

Limit switch

Part #21058409

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

Motor,265v 21061132
#45A

Air handler diagram

Motor,265v

Part #21061132

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

Isolator 21063375
#42

Air handler diagram

Isolator

Part #21063375

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

Capillary Tube 21058885
#10A

Unit assembly diagram

Capillary tube

Part #21058885

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

Most common symptoms to help you fix your heating & cooling combined units

Choose a symptom to see related heating and air conditioning system repairs.

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Why is my furnace not blowing hot enough?

Thermostat problem, clogged air filter, burner failure…

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Why isn’t my air conditioner cooling well?

Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…

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Why isn’t my air conditioner cooling?

Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…

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Why won't my air conditioner turn on?

Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.…

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Why won't my furnace turn on?

Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail…

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Why won’t my furnace burners won’t stay lit?

Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch…

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Most common repair guides to help fix your heating & cooling combined units

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

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The condensate drain line for your central air conditioner can clog with mold and mildew. Water will back up and start d…

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How to replace a heating and air conditioning system thermostat

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Effective articles & videos to help repair your heating & cooling combined units

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