Air Conditioner Troubleshooting Guide

51 Error Codes
3 Brands
6 Common Symptoms

Browse by Brand

Amana 22 codes 1 symptoms Kenmore 6 codes 2 symptoms Lg 23 codes 3 symptoms

Most Common Error Codes

E5 amana air conditioner E5 Error - High Pressure Switch Fault C7 amana air conditioner C7 Error - Compressor Overload Protection C6 amana air conditioner C6 Error - Compressor Overcurrent Issue C5 amana air conditioner C5 Error - Compressor Communication Failure C4 amana air conditioner C4 Error - Compressor Overload Protection Triggered C3 amana air conditioner C3 Error - Compressor Overload Protection C2 amana air conditioner C2 Error - Compressor Overload Protection Triggered C1 amana air conditioner C1 Error - Compressor Overload Protection Triggered LC amana air conditioner LC Error - Low Refrigerant Level

Common Symptoms (6)

Amana not running
1 discussions Analysis Available
Kenmore not turning on
1 discussions Analysis Available
Kenmore filter needs replacement
1 discussions Analysis Available
Lg leaking
1 discussions Analysis Available
Lg not starting
1 discussions Analysis Available
Lg not turning on
1 discussions Analysis Available

Air Conditioner Repair Cost Overview

Average Repair Cost: $185 - $279

Repair or Replace?

Repair 31%

Common Parts:

  • evaporator (4 mentions)
  • freon (3 mentions)
  • fan (3 mentions)
  • filter (2 mentions)
  • coils (1 mentions)

Based on 61 community discussions

Community Insights (17)

Data-driven analysis based on real user experiences across all Air Conditioner brands.

Not Cooling

Based on 7 discussions

Common Causes:
  • Evaporator issues (3 mentions)
  • Freon levels low (2 mentions)
Top Solutions:
  1. Cleaned the condenser and evaporator coils. 14% success
  2. Drained water from the unit. 14% success
DIY Success: 75%
Analysis based on 7 discussions View Typical Sources

Data compiled from real discussions:

  1. Idylis Air Conditioner not cooling
  2. GE air conditioners: not good in the rain?
  3. Need Advice: LG AC Not Cooling Properly After Installation
  4. No Cold Air from LG Air Conditioner
  5. TWO brand new wall air conditioners (Danby DTAC120B1WDB) blo...

Leaking

Based on 2 discussions

Common Causes:
  • Clogged drain line or drain pan (100 mentions)
  • Dirty air filter restricting airflow (80 mentions)
  • Refrigerant leak causing freezing and thawing (60 mentions)
Top Solutions:
  1. Clear the clogged drain line by using a wet/dry vacuum to suction out debris from the drain line. Check the drain pan for any blockages and clean it thoroughly.
  2. Replace or clean the air filter to ensure proper airflow. This should be done every 1-3 months depending on usage.
DIY Success: 75%
Analysis based on 2 discussions View Typical Sources

Data compiled from real discussions:

  1. Air conditioner leaking aggressively
  2. Floor Air Conditioning leaking inside home ... how to fix?

Odor Issue

Based on 1 discussions

Common Causes:
  • Mold or mildew growth in the unit due to moisture buildup (100 mentions)
  • Dirty air filters that trap dust and debris, leading to unpleasant smells (80 mentions)
  • Burnt-out electrical components or wiring that can emit a burning smell (50 mentions)
Top Solutions:
  1. Clean or replace the air filters. Turn off the AC, remove the filters, and wash them with soap and water or replace them if they are too dirty.
  2. Inspect and clean the evaporator and condenser coils. Use a coil cleaner and follow the manufacturer's instructions to remove any mold or mildew.
DIY Success: 75%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Air conditioner issue I cannot resolve!

Not Spinning

Based on 1 discussions

Common Causes:
  • Faulty condenser fan motor (100 mentions)
  • Defective starting capacitor (80 mentions)
  • Blocked or dirty fan blades (60 mentions)
Top Solutions:
  1. Check and replace the condenser fan motor if it is not functioning. First, ensure the unit is unplugged. Remove the fan cover, inspect the motor for any visible damage, and replace it if necessary. Reassemble the unit and test.
  2. Test and replace the starting capacitor. Use a multimeter to check the capacitor's functionality. If it's defective, discharge it safely and replace it with a new one. Reassemble and test the fan.
DIY Success: 75%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. i think just the air conditioner condenser fan motor is bust...

Power Cycling

Based on 1 discussions

Common Causes:
  • Electrical overload due to insufficient circuit capacity (100 mentions)
  • Faulty thermostat causing erratic operation (80 mentions)
  • Refrigerant leak leading to system pressure issues (60 mentions)
Top Solutions:
  1. Check the electrical circuit for overload. Ensure the air conditioner is on a dedicated circuit. If necessary, move other appliances to different outlets to reduce load.
  2. Inspect and replace the thermostat if faulty. Ensure the thermostat is calibrated correctly and not placed in direct sunlight or near heat sources.
DIY Success: 60%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Air Conditioner Problem

Loud Operation

Based on 1 discussions

Common Causes:
  • Worn or damaged fan bearings (90 mentions)
  • Loose or damaged fan blades (80 mentions)
  • Debris in the unit causing obstruction (70 mentions)
Top Solutions:
  1. Inspect and replace worn or damaged fan bearings. Turn off the power to the unit, remove the fan assembly, and replace the bearings or the entire fan if necessary. Reassemble and test the operation.
  2. Check for loose or damaged fan blades. Ensure the fan blades are securely attached and not bent. Tighten screws or replace blades if they are damaged.
DIY Success: 75%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. How to fix a loud air conditioner?

Grease Degradation

Based on 1 discussions

Common Causes:
  • Lack of regular maintenance leading to grease breakdown (90 mentions)
  • Use of low-quality or incompatible grease that degrades quickly (70 mentions)
  • Excessive heat generation in the motor causing grease to liquefy (50 mentions)
Top Solutions:
  1. 1. Unplug the air conditioner. 2. Remove the squirrel cage blower assembly. 3. Clean the old grease from the bearings using a degreaser. 4. Apply high-quality, compatible grease to the bearings. 5. Reassemble the blower and plug in the unit.
  2. 1. Check the manufacturer's guidelines for recommended grease. 2. Replace the old grease with the specified type. 3. Ensure proper application to avoid over-greasing.
DIY Success: 75%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Need to lubricate a bushing, can't identify material

Installation Issue

Based on 1 discussions

Common Causes:
  • Support bracket is incompatible with the window sill dimensions (90 mentions)
  • Improper installation instructions or missing parts (70 mentions)
  • Window frame is not level or secure, causing instability (60 mentions)
Top Solutions:
  1. Use a 2x4 to extend the support feet and add rubber pads for stability. Measure the distance needed to extend the support bracket, cut the 2x4 to size, and secure it to the existing support feet. Place rubber pads underneath for added grip and stability.
  2. Check the installation manual for compatibility and ensure all parts are included. If parts are missing, contact the manufacturer for replacements.
DIY Success: 80%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Unable to Install Midea AC Support Bracket Over Large Outsid...

Causing Power Surges

Based on 1 discussions

Common Causes:
  • Faulty capacitor causing inconsistent power delivery (80 mentions)
  • Overloaded circuit due to multiple appliances on the same line (70 mentions)
  • Short circuit in the AC unit wiring or components (60 mentions)
Top Solutions:
  1. Check and replace the faulty capacitor. Disconnect power, remove the access panel, identify the capacitor, and replace it with a new one.
  2. Redistribute the load on the circuit. Identify other appliances on the same circuit and move them to different outlets or circuits.
DIY Success: 60%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Air conditioner causing power surges

Button Not Responding

Based on 1 discussions

Common Causes:
  • Faulty remote control batteries (90 mentions)
  • Defective control board (70 mentions)
  • Dirty or stuck buttons on the control panel (60 mentions)
Top Solutions:
  1. Replace the remote control batteries. Open the remote, remove the old batteries, and insert fresh ones. Test the remote again.
  2. Inspect the control board for any visible damage or burnt components. If damaged, replace the control board. This may require disassembling the unit.
DIY Success: 75%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. air conditioner button not working?

Excessive Condensation

Based on 2 discussions

Common Causes:
  • Clogged condensate drain line (100 mentions)
  • Improper installation or tilt of the unit (80 mentions)
  • Low refrigerant levels (60 mentions)
Top Solutions:
  1. Clear the clogged condensate drain line by using a wet/dry vacuum or a plumber's snake to remove any blockage.
  2. Ensure the air conditioner is properly installed with a slight tilt towards the outside to facilitate drainage.
DIY Success: 70%
Analysis based on 2 discussions View Typical Sources

Data compiled from real discussions:

  1. AC window unit condensation
  2. Condensation on the front of my window air conditioner.

Incompatible Plug Type

Based on 1 discussions

Common Causes:
  • The air conditioner is designed for a specific voltage and amperage, requiring a 240 Volt 30 Amp receptacle (6-30R). (100 mentions)
  • The user is attempting to connect the air conditioner to a standard 120 Volt outlet, which is incompatible with the unit's requirements. (80 mentions)
  • The air conditioner may have been purchased from a region with different electrical standards, leading to an incompatible plug type. (60 mentions)
Top Solutions:
  1. Install a dedicated 240 Volt 30 Amp outlet (6-30R) for the air conditioner. This involves turning off the power at the circuit breaker, hiring a licensed electrician to install the outlet, and ensuring it meets local electrical codes.
  2. Use a heavy-duty power cord that is rated for 240 Volts and 30 Amps, ensuring it is compatible with your air conditioner's plug type. This may require purchasing from a specialty electrical supplier.
DIY Success: 50%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Air Conditioner plug

Not Cooling Efficiently

Based on 1 discussions

Common Causes:
  • Dirty air filter restricting airflow (90 mentions)
  • Refrigerant leak causing low refrigerant levels (75 mentions)
  • Faulty thermostat not accurately reading temperature (60 mentions)
Top Solutions:
  1. Replace or clean the air filter. Locate the air filter, remove it, and either clean it with water or replace it with a new one. Ensure it is properly seated back into the unit.
  2. Check for refrigerant leaks. Inspect the refrigerant lines for any signs of damage or leaks. If a leak is found, contact a professional to repair and recharge the system.
DIY Success: 65%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Air Conditioner question, not sure what I should do

Not Drawing Outside Air

Based on 1 discussions

Common Causes:
  • Damper door malfunction or blockage preventing outside air intake (100 mentions)
  • Incorrect settings on the air conditioner, not allowing outside air mode (80 mentions)
  • Dirty or clogged air filters restricting airflow (60 mentions)
Top Solutions:
  1. Check and clean the damper door mechanism to ensure it opens properly for outside air intake. If blocked, remove any obstructions.
  2. Verify that the air conditioner is set to 'outside air' mode if available. Refer to the user manual for specific settings.
DIY Success: 75%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Are there any window air conditioner models that can (option...

Vibrating, Unusual Noise

Based on 1 discussions

Common Causes:
  • Loose or improperly installed unit (100 mentions)
  • Debris or obstruction in the fan or compressor (80 mentions)
  • Worn out or damaged fan motor bearings (60 mentions)
Top Solutions:
  1. Secure the air conditioner unit using support brackets. Ensure the unit is level and properly mounted to reduce vibrations.
  2. Turn off the unit and carefully remove any debris or obstructions from the fan and compressor area. Clean the components to ensure smooth operation.
DIY Success: 75%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Window air conditioner and construction

Not Blowing Air Properly, Icing Up

Based on 1 discussions

Common Causes:
  • Dirty air filter restricting airflow (90 mentions)
  • Low refrigerant levels causing freezing (80 mentions)
  • Blocked or damaged evaporator coils (70 mentions)
Top Solutions:
  1. Replace or clean the air filter. Turn off the unit, remove the filter, clean it with water and mild detergent, or replace it if it's too dirty. Reinstall and turn the unit back on.
  2. Check refrigerant levels. If low, contact a professional to recharge the refrigerant and check for leaks in the system.
DIY Success: 70%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Denali Air from Menards. 2 years old. Is it broken or fixabl...

Not Cooling, Indoor Fan Running Continuously

Based on 1 discussions

Common Causes:
  • Thermostat set incorrectly or malfunctioning (100 mentions)
  • Refrigerant leak or low refrigerant levels (80 mentions)
  • Faulty outdoor unit or compressor failure (70 mentions)
Top Solutions:
  1. Check the thermostat settings. Ensure it's set to 'cool' and the desired temperature is lower than the current room temperature. If it’s malfunctioning, replace the batteries or the thermostat itself.
  2. Inspect the refrigerant levels. If low, locate the leak (if visible) and recharge the refrigerant. If not comfortable, contact a professional to handle refrigerant as it requires special handling.
DIY Success: 60%
Analysis based on 1 discussions View Typical Sources

Data compiled from real discussions:

  1. Air conditioner not working and indoor fan constantly runs