Furnaces are fairly easy to maintain through the winter, but as with all units in your home, they also need to be repaired. It’s important that homeowners can find out what can go wrong and when the furnace needs a repair.

Is your furnace not producing enough heat and you haven’t figured out the issue? Call Cardinal Plumbing, Heating and Air to quickly assess the issues and perform necessary repairs to restore the function of your furnace. Contact Cardinal Plumbing, Heating and Air by phone (703) 705-4466 or contact us online. 

Are you concerned that your furnace may need to be repaired? Keep reading to find out what can go wrong with your furnace and when it is time to place a repair service call. 

No Heat or Not Enough Heat 

Furnaces that aren’t blowing enough hot air can cause distress and discomfort during the colder seasons. Make sure to check whether your furnace is providing enough heat. Change the thermostat setting to “heat”, change the temperature and note if you felt a difference. If there is no change, check to see if the circuit breaker has tripped. This indicates that there is no electricity to power your furnace. 

If the furnace is working, try changing your air filter if it is clogged or dirty. While you don’t need to call a professional to change your filter, it is important that the task is completed often. If your unit is still not powering on, contact your local heating and air conditioning repair company to take a look at your unit. 

Burner Flames 

The burners are responsible for heating the air that will circulate through your home. Failure can occur from contamination of debris. The easiest way to check if the burners are clean is to look at the flames of your burner. A clean burner will produce blue and even flames. Dirty burners produce a yellow uneven flame that may become hazardous if not cleaned quickly. 

Maintenance is relatively easy and involves cleaning and removing any debris that accumulates. To clean the burners, make sure that the power and gas is off and then vacuum around the burner and the blower.

Short Cycling Issues

A furnace that turns on and off throughout the day can indicate that something else is wrong within the unit. Most of the time the cause of short cycling is a dirty or clogged filter. Having a clogged filter can lead to overheating. Your furnace will turn off if it overheats, which will end up increasing your utility bills. Fixing this issue is inexpensive and easy. To prevent overheating, change your air filter every 1-2 months to ensure that air flow is not restricted.

Other causes of short cycling are due to more mechanical and electrical issues. Issues like a faulty flame sensor needs to be fixed by a licensed technician. 

Blower Runs Constantly

Is your gas furnace blower continuously running? This may be an indication that a repair is necessary. The blower sends cold air to the heat exchanger to be heated and circulated through your ducts and vents. The first thing to do is to make sure your thermostat does not have a “continuous fan” setting – if it does, turn it off. 

A blower that runs constantly may have a faulty limit control switch. The limit control switch is responsible for turning the blower on or off. If the switch is faulty, you need to call in a professional for HVAC repair or replace the part. 

Noisy Furnace 

Odd noises are not common in a normal working furnace. If your furnace is making unusual sounds, it may have a mechanical, airflow or burner problem. Here are some common noises and what they may indicate:

  • Rattling sounds are indicative of a loose panel or parts within the unit.
  • Squealing and squeaking noises occur when a belt slips. It is often the belt that connects the motor to the fan.
  • Grinding sounds indicate that the bearings of the motor need to be repaired. 

All other noises can be identified by a technician with experience. These professionals have heard all types of noises and will make sure to repair what is necessary. 

No Air Blowing From the Unit

A furnace that is not blowing air is usually the result of blockage or something more serious. In the case of a blockage, make sure the blower is clear of any debris. This is easily checked by looking through the inspection window of the furnace. A green flashing light means it is okay. However, a red light means that a service call needs to be placed. 

The furnace will not blow air if there is a problem with the thermostat or the motor. Do not try to fix this on your own as it causes bigger problems. Instead, call a professional to help to look at your HVAC unit

Faulty Ignition System 

A faulty ignition system can reduce the efficiency of your furnace to properly heat the air in your home. In gas furnaces, the ignition system is controlled by a pilot light or an electrical control. In units with a pilot light, a simple draft or clog can stop the pilot light from working. 

There are some things you can do to identify the problem with the ignition components. If anything is cracked it will need to be replaced. If you do not feel comfortable reading through the manual and performing troubleshooting steps, call an HVAC repair company. 

Smell of Gas 

If you smell a strong gas odor, immediately leave your home and call the gas utility company and a trusted HVAC company for emergency furnace repair. The smell of gas is an indication of a gas leak in your home. If there is a gas leak, your furnace will not efficiently run. Leaking gas is a big hazard for you and your family. Have the HVAC company perform a gas leak detection for all areas on your property.

Emergency Furnace Repair 

For emergency furnace repair and normal heating and cooling repair, call the best in Sterling, VA. Cardinal Plumbing, Heating and Air has excellent customer service and reviews and makes sure that your home is safe for you and your family. An improperly functioning furnace is not fun for any homeowner. Call Cardinal to ensure that it is fixed properly and quickly. Trust our licensed technicians to inspect and repair your heating unit. 

Leave the stress and worry to the professionals of Cardinal Plumbing Heating, and Air. Contact us to perform repairs and for emergency furnace repairs by phone number (703) 705-4466 or find us online