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Friedrich
Heating & Cooling Combined Unit

Model # TEC12R50 Official Friedrich central packaged terminal unit

Here are the diagrams and repair parts for Official Friedrich TEC12R50 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 106 parts  |
Insulation 21058387
#48

Air handler diagram

Insulation

Part #21058387

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

Fuse,time 21058448
#74C

Control box assembly diagram

Fuse,time

Part #21058448

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

Holder,fus 21058446
#74A

Control box assembly diagram

Holder,fus

Part #21058446

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

Extension Spring 21058530
Extension spring

Part #21058530

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

Coil Evaporator 25018600
#10

Unit assembly diagram

Coil evaporator

Part #25018600

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

Compr Repl 21091572
#11A

Unit assembly diagram

Compr repl

Part #21091572

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

Check Valve 21058568
#10C

Unit assembly diagram

Check valve

Part #21058568

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

Push Button 21058728
#68

Control box assembly diagram

Push button

Part #21058728

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

Push Switch 21058708
#67A

Control box assembly diagram

Push switch

Part #21058708

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

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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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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Time required
 15 minutes or less
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How to replace the furnace flame sensor

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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.…

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

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Maintaining your air conditioner

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