Friedrich
Heating & Cooling Combined Unit

Model # PH12R3RB Official Friedrich packaged terminal air conditioner & heat pump

Here are the diagrams and repair parts for Official Friedrich PH12R3RB packaged terminal air conditioner & heat pump, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 85 parts  |

Coil Condenser
#10A

Unit assembly diagram

Coil condenser

Part #25014821

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

Relay
#43B

Control box assembly diagram

Relay

Part #21060940

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

Holder,fus
#57A

Control box assembly diagram

Holder,fus

Part #21058446

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

Brace Control
#24

Air handler diagram

Brace control

Part #25036400

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

Room Air Conditioner Condenser Fan Blade
#25

Air handler diagram

Room air conditioner condenser fan blade

Part #60542006

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

Discharge
#20

Air handler diagram

Discharge

Part #25038400

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

Thermostat
#41

Control box assembly diagram

Thermostat

Part #25043300

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

Fuse,time
#56

Control box assembly diagram

Fuse,time

Part #21058448

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

Shroud Fan
#26

Air handler diagram

Shroud fan

Part #25036801

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

Suction Light

#(NI)

All parts diagram

Suction light

Part #61828200

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

Symptoms common to all heating & cooling combined units

Choose a symptom to see related heating and air conditioning system repairs.

October 25, 2023

Thermostat problem, clogged air filter, burner failure…

April 20, 2023

Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…

April 20, 2023

Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…

April 20, 2023

Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.…

April 20, 2023

Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail…

April 20, 2023

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

Repair guides common to all 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
March 16, 2022

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
March 16, 2022

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
March 03, 2022

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

Articles and videos common to all 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
May 24, 2023

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
May 19, 2023

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
June 29, 2022

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…