Six Air Conditioner Problems Moreno Valley, CA, Homeowners Face

Inland Empire Comfort
June 12, 2025
AC Repair Services in Moreno Valley CA

A faulty air conditioner is a nuisance no homeowner wants to deal with. However, common AC unit problems affect people throughout California. When you need AC repair services in Moreno Valley, CA, Inland Empire Comfort has your solution. 


Discover some standard reasons behind our service calls and the underlying issues we fix for local property owners. 


1. Strange Noises During Cooling Cycles in Moreno Valley

Don’t panic if you hear a dull humming sound as your air conditioner runs. You should, however, take note of unusual noises coming from the unit, such as:

  • Banging
  • Rattling
  • Buzzing

Do you hear metal clanking together? This could be loose parts rattling around inside your outdoor unit. Meanwhile, a buzzing sound could represent an internal electrical issue.


A licensed technician will have to inspect your equipment and recommend the best course of action. 


2. The Unit Won’t Turn On

One of the most common AC unit problems impacting Moreno Valley homeowners is a system that won’t turn on. Thankfully, this is also one of the simplest issues to fix. 


In most cases, air conditioners fail to turn on after a circuit breaker trips, cutting off the equipment’s electrical supply. Check your breaker box and flip the switch on any tripped circuits to restore power. 


Don’t hesitate to schedule an electrical inspection if this problem persists. Frequent electrical control failures may indicate worn-out wires or faulty connections. 


3. A Lack of Cold Air Blowing

There’s nothing worse than having your air conditioner on full blast, but feeling no air coming from the vents. What’s the explanation for this? Experts often point to the following:

  • A clogged air filter: Dirty air filters restrict airflow, which makes it difficult for you to feel a refreshing breeze passing through your HVAC vents. 
  • Low refrigerant levels: Refrigerant leaks prevent the system from absorbing the heat inside your home and replacing it with cool air. 
  • A faulty thermostat: Make sure your thermostat is set to its cooling mode and programmed to a temperature lower than the indoor air temperature. 
  • Blocked vent registers: The unit may work properly, but you have a closed vent or one blocked by furniture or large objects. 


4. Water Leaks Around the Unit

Next on the list of common AC unit problems impacting California residents is water leaks near the air conditioner. The usual culprits responsible for this problem are frozen evaporator coils and clogged drain lines. Schedule routine maintenance to address dirty coils and potential drainage problems before they escalate into a huge mess. 


5. Short-Cycling

Short-cycling can cause your energy bills to skyrocket and increase wear and tear on your cooling system. What causes this problem? There are several possible causes, including:

  • Thermostat malfunctions or incorrect placement: If you place the thermostat in a warmer area, it may trigger the air conditioner when it doesn’t need to work. A malfunctioning device could also be responsible for the frequent cycling. 
  • Low refrigerant levels: When the unit is low on refrigerant, it must work harder to cool the home and repeat its cycle more often. 
  • An oversized system: Installing a unit that’s too big for your demands can result in short-cycling. 

6. Noticeable Smells Coming From the Vents

Unpleasant odors from an air conditioner could be due to a clogged air filter or mildew inside dirty ductwork. Replace your filter every one to three months and have experts inspect and clean your ducts if necessary. 

Moreno Valley’s Trusted HVAC Experts

Contact Moreno Valley’s Trusted HVAC Experts for Air Conditioning Repair

Are you experiencing any of the issues above and need help fast? Turn to Inland Empire Comfort Dealing for all of your HVAC needs. Our technicians assist with everything from identifying faulty AC capacitor symptoms to replacing worn-out residential and commercial cooling systems. 


Give us a call today to request top-tier service in Moreno Valley. 

Frequently Asked Questions

Do you want to learn more about common AC unit problems? Get answers to common customer questions below. 


Should There Be Ice Around an Air Conditioning Unit?

No, ice around an air conditioning unit indicates airflow problems or low refrigerant levels. Schedule professional repairs if you notice any ice buildup around coils. 


Will HVAC Maintenance Prevent System Performance Problems?

Yes, routine HVAC maintenance prevents issues like frozen evaporator coils, refrigerant leaks, and more. Invest in yearly maintenance for optimal results.


How Can I Troubleshoot Air Conditioning Issues in Moreno Valley?

Troubleshoot common AC unit problems by changing the air filter, checking for tripped circuit breakers, clearing blocked vents, and adjusting the thermostat. If these measures don’t help, contact a professional repair technician.

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