Model # THC15K34 Official Friedrich central packaged terminal unit

Here are the diagrams and repair parts for Official Friedrich THC15K34 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 |

#NI08

All parts diagram

Thermostat

Part #21059023

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

#13

Unit assembly diagram

Overload

Part #61764506

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

#NI03

All parts diagram

Terminal board

Part #21058986

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

#66A

Control box assembly diagram

Clip,t sta

Part #21058518

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

#71B

Control box assembly diagram

Line cord

Part #21058584

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

#NI13

All parts diagram

Rework kit

Part #25010100

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

#40

Air handler diagram

Short shaft

Part #25009600

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

#32

Air handler diagram

Access cover

Part #21062325

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

#65A

Control box assembly diagram

Thermostat

Part #21058517

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

#NI09

All parts diagram

Transformer

Part #21056899

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…

Why isn’t my air conditioner cooling well?

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

Why isn’t my air conditioner cooling?

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

Why won't my air conditioner turn on?

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

Why won't my furnace turn on?

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

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

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

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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How to unclog the air conditioner drain line

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

Repair difficulty

Time required

15 minutes or less

How to replace the furnace flame sensor

The flame sensor detects when furnace burner flames are lit. You may need to replace the flame sensor if flames only sta…

Repair difficulty

Time required

15 minutes or less

How to replace a heating and air conditioning system thermostat

The control thermostat for your HVAC system can stop working. This repair guide shows how to replace it.…

Repair difficulty

Time required

30 minutes or less

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

Use the advice and tips in these articles and videos to get the most out of your HVAC system.

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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

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

Top questions about Sears and Sears PartsDirect

Model # THC15K34 Official Friedrich central packaged terminal unit

Model diagram and schematic

SEARCH WITHIN THIS MODEL

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

Why is my furnace not blowing hot enough?

Why isn’t my air conditioner cooling well?

Why isn’t my air conditioner cooling?

Why won't my air conditioner turn on?

Why won't my furnace turn on?

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

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

How to unclog the air conditioner drain line

How to replace the furnace flame sensor

How to replace a heating and air conditioning system thermostat

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

Maintaining your air conditioner

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

Top questions about Sears and Sears PartsDirect

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