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Friedrich
Heating & Cooling Combined Unit

Model # THC15R34 Official Friedrich central packaged terminal unit

Here are the diagrams and repair parts for Official Friedrich THC15R34 central packaged terminal unit, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 103 parts  |
Rework Kit 25010100

#NI13

All parts diagram

Rework kit

Part #25010100

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

Short Shaft 25009600
#40

Air handler diagram

Short shaft

Part #25009600

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

Thermostat 21058517
#65A

Control box assembly diagram

Thermostat

Part #21058517

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

Overload 21091325
#13A

Unit assembly diagram

Overload

Part #21091325

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

Collar Assembly 25009700
#44A

Air handler diagram

Collar assembly

Part #25009700

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

Holder,fus 21058447
#74B

Control box assembly diagram

Holder,fus

Part #21058447

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

Limit Switch 21058407
#50

Air handler diagram

Limit switch

Part #21058407

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

Coil,solen 21058644
#10E

Unit assembly diagram

Coil,solen

Part #21058644

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

Drain Kit 25031800

#NI12

All parts diagram

Drain kit

Part #25031800

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 furnace burners won’t stay lit?

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

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

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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…

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 15 minutes or less
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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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