Whirlpool Air Conditioner Won T Turn On

Introduction

A malfunctioning air conditioner, especially a Whirlpool AC that won’t turn on, can be a real headache during hot weather. This situation is not only uncomfortable but can also lead to indoor air quality issues if left unresolved. You might notice this problem at the start of the cooling season, after a power outage, or seemingly out of the blue. Addressing this issue quickly is important to restore comfort and prevent potential damage to the unit.

Common Causes of Whirlpool Air Conditioner Won’t Turn On

Here are some typical reasons why your Whirlpool air conditioner might not be turning on:

Power Outage: Check if there’s a general power failure in your area.
Tripped Circuit Breaker: The circuit breaker dedicated to the AC unit may have tripped.
Blown Fuse: A fuse within the AC unit or electrical panel could be blown.
Remote Control Issues: The remote might have dead batteries or be malfunctioning.
Thermostat Settings: The thermostat might be set incorrectly (e.g., not on “Cool” or set to a high temperature).
Dirty Air Filter: A clogged air filter can restrict airflow and cause the AC to overheat, preventing it from starting.
Safety Switch Activation: Some AC units have safety switches that cut power if panels are removed or the unit is tilted.
Capacitor Failure: The capacitor helps start the motor; a faulty capacitor is a common issue.
Faulty Wiring: Damaged or loose wiring connections can prevent the AC from receiving power.
Compressor Issues: While less common for DIY fixes, the compressor could be malfunctioning.

Symptoms Checklist

Use this checklist to pinpoint the problem:

No lights or display on the AC unit.
AC makes a humming sound but doesn’t start.
The circuit breaker trips immediately when you try to turn on the AC.
The remote control doesn’t seem to be working.
The air coming from the vents is warm, even though the AC is “on” (if it runs at all).
The AC unit is making unusual noises.

How to Fix Whirlpool Air Conditioner Won’t Turn On Step-by-Step Guide

Follow these steps to troubleshoot your Whirlpool AC:

Check the Power Source: Make sure the AC is plugged in securely. If it is, try plugging it into a different outlet to rule out outlet issues.
Inspect the Circuit Breaker: Go to your electrical panel and locate the breaker for the AC unit. If it’s tripped (usually in the “off” or middle position), flip it all the way to “off” and then back to “on.”
Examine the Fuse (If Applicable): Some older units may have a fuse near the power cord. Check if the fuse is blown (the wire inside will be broken). Replace if necessary.
Test the Remote Control: Replace the batteries in the remote. Ensure there are no obstructions between the remote and the AC unit’s receiver. Try using the manual controls on the AC unit itself.
Verify Thermostat Settings: Ensure the thermostat is set to “Cool” mode and the temperature is set lower than the current room temperature.
Clean the Air Filter: Locate the air filter (usually behind a panel on the front or side of the unit). Remove the filter and clean it with water and mild detergent. Let it dry completely before reinserting it. Replace if heavily soiled or damaged.
Inspect Safety Switches: If your unit has removable panels, make sure they are properly secured. Some units have safety switches that prevent operation if a panel is removed.
Listen for Sounds: When you attempt to turn on the AC, listen carefully. A humming sound could indicate a capacitor issue.
Check for Ice Buildup: Inspect the evaporator coils (usually behind the air filter). If they are covered in ice, the AC may have a refrigerant leak or airflow problem. Turn off the AC and let the ice melt completely before troubleshooting further (this can take several hours).
Examine Wiring Connections (Caution!): If you’re comfortable doing so, and after disconnecting the power, carefully inspect the wiring connections inside the unit for any loose or damaged wires. Do not attempt this step if you are not comfortable working with electricity.
Reset the AC Unit: Some AC units have a reset button. Check your owner’s manual for the location and procedure.
Test the Capacitor (Advanced): If you’re comfortable and have the right tools (multimeter with capacitance testing), you can test the capacitor. However, this is best left to a professional.
Allow Time to Rest: If the unit has overheated, sometimes simply turning it off for 30 minutes before trying again can help.

Fix the Issue Without Buying Parts

Before considering replacements, try these free methods:

Reset: Try unplugging the AC unit for 15 minutes and then plugging it back in.
Cleaning: Regularly clean the air filter every 1-3 months for optimal performance.
Inspection: Visually inspect the unit for any obvious signs of damage or obstructions.
Maintenance: Keep the area around the outdoor unit clear of debris.

When Replacement Might Be Necessary

If none of the troubleshooting steps work, the capacitor or other internal components might have failed. The compressor is the most expensive part to replace, typically costing between $500 and $1200 (USD) including labor. A capacitor replacement might cost $100-$300 (USD) with labor. If the unit is old and repair costs are high, consider replacing the entire unit. New window AC units range from $150 to $600 (USD), while central AC units can cost several thousand dollars.

Safety Warning

Always disconnect the power supply before performing any maintenance or troubleshooting.
Avoid working on the unit if the floor is wet.
If you are not comfortable working with electricity, contact a qualified technician.
Do not attempt to repair the compressor; this requires specialized equipment and knowledge.

Tools You May Need

Screwdriver (Phillips and Flathead)
Multimeter (Optional, for testing electrical components)
Pliers
Vacuum cleaner (for cleaning)
New air filter (if necessary)

FAQ

Q: Why is my AC making a humming noise but not starting?
A: This often indicates a problem with the capacitor, which helps start the motor.

Q: My AC turns on, but the air is not cold. What could be wrong?
A: This could be due to a refrigerant leak, a dirty air filter, or a problem with the compressor.

Q: How often should I clean my AC filter?
A: It’s recommended to clean or replace your AC filter every 1-3 months, depending on usage and air quality.

Q: The circuit breaker keeps tripping when I turn on the AC. What does that mean?
A: This could indicate a short circuit, an overloaded circuit, or a faulty component in the AC unit. Contact an electrician to investigate.

Conclusion

Troubleshooting a Whirlpool air conditioner that won’t turn on can seem daunting, but with a systematic approach, many issues can be resolved without professional help. By following these steps, you can potentially save money and restore comfort to your home. If you’ve exhausted these solutions and your AC still isn’t working, it’s time to consult a qualified HVAC technician.