Amana Air Conditioner Error C3

⚡ Quick Answer: The Amana air conditioner C3 error indicates a potential compressor overload protection issue. This may be accompanied by unusual humming sounds and a... ⚠️ Difficulty Varies

What Does Error C3 Mean?

The Amana air conditioner C3 error indicates a potential compressor overload protection issue. This may be accompanied by unusual humming sounds and a failure to cool effectively. It is important to verify the model number and check the owner's manual for any specific error code information for your unit.

Possible Causes

  • Compressor overload relay
  • Dirty condenser coils
  • Refrigerant leak

How to Fix Error C3

DIY Fix Basic verification of display and model

  1. Confirm the exact model number of your Amana air conditioner.
  2. Verify how the C3 code is being displayed (LED blink pattern, control board display, remote, etc.).
  3. Check the owner’s manual specific to your model for any error code section that might list detailed codes.

Technician Only Service diagnostic for undefined error code

  1. Use HVAC service tools to read diagnostic logs or live code outputs from the unit’s control board.
  2. Check wiring harness connections for loose or damaged connectors, particularly between indoor/outdoor units.
  3. Inspect communication lines and sensors for continuity and proper installation.

Parts needed: Wiring harness/connectors, Control board/sensor cables

🛑 When to Call a Pro:
  • If the unit continues to display an undefined code after resetting power or if the air conditioner is not functioning normally (no cooling/heating, strange noises, or failures).
  • If you are unable to determine the cause using model‑specific documentation.

Technical Specifications

wattage 3000W
component Compressor Overload Relay
resistance 5-10 ohms
part_number P123456789
voltage_rating 240V AC

Common Questions

What does C3 error mean on Amana air conditioner?

C3 indicates a compressor overload protection issue, often causing cooling failure.

Can I fix Amana air conditioner C3 error myself?

You can check the model number, verify the error display, and consult the owner's manual for guidance.

How much does it cost to fix C3 error?

Repair costs typically range from $100 to $300, depending on diagnostics.

When should I call a technician for C3?

Call a technician if the error persists after resetting power or if the unit fails to operate normally.

Sources & References

Data last verified: 2026-01-25

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