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Friedrich
Heating & Cooling Combined Unit

Model # PH12K3RB Official Friedrich packaged terminal air conditioner & heat pump

Here are the diagrams and repair parts for Official Friedrich PH12K3RB packaged terminal air conditioner & heat pump, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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 85 parts  |
Icp Coil Condenser 25014821
#10A

Unit assembly diagram

Icp coil condenser

Part #25014821

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

Transformer 21091226

#(NI)

All parts diagram

Transformer

Part #21091226

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 Compr Repl 25024912
#11A

Unit assembly diagram

Icp compr repl

Part #25024912

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

Icp Check Valve 25057201
#14

Unit assembly diagram

Icp check valve

Part #25057201

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

Icp Capillary Tube 03760511
#12

Unit assembly diagram

Icp capillary tube

Part #03760511

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

Sensor Hood 25039101
#44

Control box assembly diagram

Sensor hood

Part #25039101

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

Fuse,time 21058451
#56B

Control box assembly diagram

Fuse,time

Part #21058451

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

Icp Capillary Tube 01390000
#12A

Unit assembly diagram

Icp capillary tube

Part #01390000

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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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...

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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....

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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

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long....

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