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10 signs your HVAC system is in need of repair or replacement

10 signs your HVAC system is in need of repair or replacement

Keeping your home’s heating and cooling system running smoothly is essential for comfort. But when should you repair or replace your HVAC unit? Knowing the signs that it’s time to have a professional take a look can help you keep energy costs down, improve air quality in your home, and ensure that your family stays comfortable all year round. In this blog post, we will discuss 10 telltale signs that it is time to consider repairing or replacing your HVAC unit.


We’ll cover topics such as increasing energy bills, strange noises coming from the unit, inadequate air flow in rooms of the house, and more.

three Dilling HVAC units surrounded by plants

What can Dilling HVAC do for you?

Do you need air conditioning repair? Are your air ducts dirty, or are you in need of new ductwork? Are your energy savings and energy efficiency falling, with high energy bills and energy use going through the roof?

Here are the 10 signs your HVAC system is in need of repair or replacement

1. Your HVAC unit is more than 10 years old

With regular maintenance and repairs, HVAC units typically last up to 15-20 years. If your unit is nearing the end of its lifespan, it may be time for you to consider replacing it rather than trying to repair it.

Dilling HVAC Save on AC tune up

2. Strange noises emanating from your HVAC system

If you hear odd noises like grinding or squealing coming from your furnace or air conditioner, it could indicate a problem with the fan motor, belts or other components that will require repairs or replacement of parts.

3. You have noticed increased energy bills without an explanation in usage

An inefficient HVAC system can lead to higher energy bills as the unit works harder and longer to reach the desired temperature settings.

4. Your home still feels uncomfortable even though the thermostat is set correctly

This could be a sign that your heating system is not working properly and needs to be serviced or possibly replaced with a newer model designed for greater efficiency and comfort capability.

two Dilling HVAC united keeping your home comfortable

5. Your furnace produces little to no heat or your air conditioner produces little cool air when turned on

This is likely due to an issue with your blower, fan motor, control board, capacitor or other components that could require either simple repairs or complete replacement of the system depending on age and severity of issue(s).

6. Unpleasant smells are coming from your vents or registers when running your HVAC system

This can be indicative of dirt and debris buildup within the ductwork which should be cleaned out by a professional if this is something you have not had done in several years (or ever).

7. You notice moisture around any part of your heating/cooling system

If any moisture is around your system, such as near any lines connecting to outdoor components (condenser coils), these lines may have come loose due to vibrations which will need repair immediately before further damage can occur from leaks/spills inside walls/ceilings .

8. You feel warm air coming out from cold air supply vents

This could indicate a poor seal between ducting and other components which requires sealing with mastic sealant immediately before further energy loss occurs due to leaky ducts/vents.

9. If one room feels much hotter than another


This could mean uneven distribution of conditioned air throughout the house which indicates issues with airflow that require servicing by a technician right away before additional problems arise due to poor circulation throughout the home’s living space(s). 


10. Your current system does not include newer features like zoning capabilities, humidifier controls, etc.

These items are now commonplace on most modern HVAC systems; meaning you may need an upgrade if you want more efficient operation while keeping optimal indoor humidity levels in order for better overall comfort in all areas of residence at all times throughout the year(s).

Dilling HVAC is your go-to for all your HVAC needs in Eastern PA

Dilling HVAC is the best company to repair or replace your HVAC unit because they offer unbeatable customer service and expertise.

Their highly trained technicians use the latest technology and techniques to diagnose any potential issues with your heating and cooling system, ensuring proper repair results.


They also provide quality parts for replacements. And, you don’t have to worry about prices as their rates are industry-competitive. With Dilling HVAC on your side, you can get back to comfortable temperatures in no time!


Dilling HVAC services homeowners in seven counties throughout Eastern Pennsylvania. From Bucks County in the north, to Philadelphia County in the south, Dilling HVAC is dedicated to providing excellent HVAC repair and replacement service to their customers.

Bucks County

In Bucks County, PA, Dilling HVAC offers installation of high-efficiency air conditioners and furnaces for both residential and commercial use.


The professional technicians are knowledgeable about all types of heating and cooling systems for homes located near Quakertown, Levittown, Warrington, Chalfont, Yardley and other nearby towns.

Montgomery County

If you live in Montgomery County, PA then you can turn to Dilling HVAC for all your heating and cooling needs.


Their experienced team will help you find the perfect system for your home in towns like Pottstown, Norristown, Ambler or Skippack.


They offer a wide selection of energy efficient models plus helpful advice on how to keep them running at optimum performance levels.

Delaware County

Delaware County residents can also take advantage of Dilling HVAC’s repair and replacement services.


Whether you’re looking for a new air conditioning system or just need some repairs on an existing unit, their professional team has the experience necessary to make sure every job is done right the first time around. Local towns served include Media, Springfield Township, Upper Darby and more!

Philadelphia County

When it comes to finding an experienced contractor in Philadelphia County that can handle any type of heating or cooling job with confidence – look no further than Dilling HVAC!


Whether its furnace maintenance for University City residents or a full AC installation in Center City – this company delivers top-notch service every time!

Chester County

Chester County homeowners have been relying on the expertise provided by Dilling HVAC since 2009.


Whether you need seasonal tune ups or a complete system overhaul – these professionals can help make sure your family stays comfortable all year round.

Popular areas serviced include Malvern, Exton and West Chester!

Lehigh Valley

For Lehigh Valley residents living in Northampton or Lehigh Counties – now is the time to call on Dilling HVAC!


As one of the region’s leading experts on heating and cooling systems – they provide comprehensive services such as installations (including ductless mini splits) repairs as well as routine maintenance checks throughout the season.


So no matter what your family needs – they can help keep things running smoothly!

Dilling HVAC also provides quality services to residents in New Jersey

From Ocean County all the way up to Middlesex County, their team of experienced technicians is ready to tackle any heating or cooling needs that may come their way!


Customers looking for reliable repair and replacement services can count on Dilling HVAC for efficient solutions.


They offer full installation services of high-efficiency air conditioners, furnaces, ductless mini-splits, and more. Plus, they are knowledgeable about all types of systems and can provide helpful advice on how to keep them running at optimal levels.


Whether you’re in Monmouth County needing a new AC unit or Mercer County searching for maintenance tips – Dilling HVAC can help make sure your home stays comfortable all year round! In addition to these counties, they also offer services in Burlington County and Hunterdon County so no matter where you are – you’re never too far from excellent HVAC service.

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