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Friedrich
Heating & Cooling Combined Unit

Model # VHA18K50RTG Official Friedrich single-package vertical air conditioner

Here are the diagrams and repair parts for Official Friedrich VHA18K50RTG single-package vertical air conditioner, 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 33 parts  |
Thermostat 210-590-23
#9

Unit assembly diagram

Thermostat

Part #210-590-23

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

Fan Blade 605-420-04
#11

Unit assembly diagram

Fan blade

Part #605-420-04

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

Blower Wheel 606-106-10
#19

Unit assembly diagram

Blower wheel

Part #606-106-10

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

Shroud Medium 618-049-00
#15

Unit assembly diagram

Shroud medium

Part #618-049-00

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

Check Valve 650-135-00
#10

Unit assembly diagram

Check valve

Part #650-135-00

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

Reversing Valve 250-187-01

#NI02

All parts diagram

Reversing valve

Part #250-187-01

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

Heater 3.4 Kw 230 V 800-170-01
#16A

Unit assembly diagram

Heater 3.4 kw 230 v

Part #800-170-01

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

Outdoor Coil Assembly (sea Coast) 618-502-19
#4A

Unit assembly diagram

Outdoor coil assembly (sea coast)

Part #618-502-19

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

Heater 2.5 Kw 230 V 800-170-00
#16

Unit assembly diagram

Heater 2.5 kw 230 v

Part #800-170-00

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

Non-fused Disconnect 800-076-00
#23

Unit assembly diagram

Non-fused disconnect

Part #800-076-00

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…

Read more

Why isn’t my air conditioner cooling?

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

Read more

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

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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Repair difficulty
Time required
 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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How to prevent the 2 most common AC failures from ruining your summer

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