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Friedrich
Heating & Cooling Combined Unit

Model # PH12R3SB Official Friedrich packaged terminal air conditioner & heat pump

Here are the diagrams and repair parts for Official Friedrich PH12R3SB packaged terminal air conditioner & heat pump, 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 85 parts  |
Relay 25042500

#NI21

All parts diagram

Relay

Part #25042500

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

Icp F/a Door S 25015300
#27

Air handler diagram

Icp f/a door s

Part #25015300

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

Icp Suction Light 61828200

#(NI)

All parts diagram

Icp suction light

Part #61828200

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

Icp Seal Fan M 60217902

#(NI)

All parts diagram

Icp seal fan m

Part #60217902

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

Holder,fus 21058447
#57B

Control box assembly diagram

Holder,fus

Part #21058447

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

Holder,fus 21058444
#57

Control box assembly diagram

Holder,fus

Part #21058444

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

Icp Insul, F/a 25034900
#27A

Air handler diagram

Icp insul, f/a

Part #25034900

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

Capacitor 61080571
#45A

Control box assembly diagram

Capacitor

Part #61080571

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

Rocker Switch 25001900
#50

Control box assembly diagram

Rocker switch

Part #25001900

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

Icp Motor Mount 25014400
#28

Air handler diagram

Icp motor mount

Part #25014400

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

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

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
How to replace the furnace flame sensor

How to replace the furnace flame sensor

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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.…

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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

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