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Heating & Cooling Combined Unit

Model # THC09R25 Official Friedrich central packaged terminal unit

Here are the diagrams and repair parts for Official Friedrich THC09R25 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

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 104 parts |

Push Button 21058728

Control box assembly diagram

Push button

Part #21058728

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

Terminal Board 21058986

#NI03

All parts diagram

Terminal board

Part #21058986

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

Filter 25025600

Filter

Part #25025600

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

Thermostat 21059023

#NI08

All parts diagram

Thermostat

Part #21059023

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

Fuse,time 21058451

Control box assembly diagram

Fuse,time

Part #21058451

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

Check Valve 21058587

Unit assembly diagram

Check valve

Part #21058587

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

Thermostat 21059022

#NI05

All parts diagram

Thermostat

Part #21059022

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

Pump Condenser 25032900

Control box assembly diagram

Pump condenser

Part #25032900

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

Transformer 21091226

#NI10

All parts diagram

Transformer

Part #21091226

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

Blower Scroll 21058350

Air handler diagram

Blower scroll

Part #21058350

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.

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.

How to unclog the air conditioner drain line

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

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

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.

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.…

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