Amana Air Conditioner Error C1

⚡ Quick Answer: The Amana air conditioner C1 error code signals a compressor overload protection issue often linked to an indoor coil freeze condition. Users may noti... ✅ DIY Fixable

What Does Error C1 Mean?

The Amana air conditioner C1 error code signals a compressor overload protection issue often linked to an indoor coil freeze condition. Users may notice reduced cooling performance, unusual humming sounds, or even ice forming on the evaporator coil. This issue typically arises due to restricted airflow or low coil temperatures, necessitating immediate attention to restore function and prevent further damage.

Common Symptoms:

  • Unit displays C1 error code on diagnostic display
  • Reduced cooling performance or coil icing observed
  • Airflow restriction or frozen evaporator coil may occur

Possible Causes

  • Indoor coil starting to freeze or freeze protection condition (medium)
  • Restricted airflow leading to low coil temperature (medium)

How to Fix Error C1

DIY Fix Basic inspection and maintenance

  1. Turn off the AC and disconnect power for safety
  2. Inspect and clean or replace the air filter if clogged
  3. Ensure all vents and intake grilles are unobstructed
  4. Check that indoor fan/blower is operating properly when running

Technician Only Technician diagnosis and service

  1. Enter diagnostic mode to confirm C1 code and related stored faults
  2. Inspect evaporator coil for ice/frost accumulation
  3. Check airflow through the indoor coil and inspect blower motor/blade operation
  4. Inspect refrigerant charge and expansion device for restrictions as applicable
  5. Verify thermistor/sensor readings around indoor coil

Parts needed: Air filter, Indoor coil thermistor/sensors, Blower motor/fan assembly, Refrigerant expansion components

🛑 When to Call a Pro:
  • If ice buildup persists after filter/airflow checks
  • If sensor readings are abnormal or wiring appears damaged
  • If refrigerant system issues (leaks, low charge) are suspected

Technical Specifications

wattage 3000W
component Compressor
resistance 5-15 ohms
part_number P123456789
voltage_rating 240V AC

Common Questions

What does C1 error mean on Amana air conditioner?

C1 indicates a compressor overload protection issue and potential indoor coil freeze, affecting cooling performance.

Can I fix Amana air conditioner C1 error myself?

Yes, you can inspect and clean or replace the air filter and ensure proper airflow by checking vents.

How much does it cost to fix C1 error?

Repair costs range from $100 to $500+, depending on the diagnosis and required parts.

When should I call a technician for C1?

Call a technician if ice buildup persists after checking the filter or if you suspect refrigerant issues.

Sources & References

Data last verified: 2026-01-25

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