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bullet Commonly Reported HVAC Problems:


My heat pump is iced-up, mine blows cold air. My pilot goes out. Do you know what to do?You have problems? We have answers! Hannabery HVAC
Commonly Reported HVAC Problems:
[Copyright © 1996-2014. Hannabery HVAC. All rights reserved.]

Some rooms are warmer or colder
than others:

  • It's not uncommon to find a system 20% to 40% low on airflow.

  • Lack of proper airflow drastically reduces the efficiency of your heating and air conditioning system.

  • Having your air duct system professionally balanced might solve your problems, thus improving comfort and efficiency.
Duct Balancing Duct Balancing

Air Duct Balancing...

If some rooms are warmer or colder than others, this is usually just a matter of balancing. Meaning adjusting the airflow to each room so they all even out. Or sometimes making the rooms you want comfortable and unused rooms less so. If a room is heating or cooling much quicker than other rooms, the airflow can be reduced to that room to even things out, also sending more air to other areas.

If some rooms can't keep up with others and the airflow isn't as noticeable, make sure the air vents are fully opened.

What is the best way to balance your ducts?

Many systems have dampers installed on the individual supply runs coming off the main supply trunk. This is either in the basement or attic. They are identified by little metal handles which open, close and adjust a metal damper controlling the amount of air through the duct. By dampening the air-flow here to rooms with too much air, it will send more air to the rooms that need it.

If your system doesn't have dampers or if they are inaccessible, then dampening and balancing will have to be done at the supply registers themselves. Just adjust as necessary.

In many homes, and mostly in two-story homes, there is usually one or two rooms that just can't keep up with the others. Maybe it has the longest duct run or the most elbows and turns. Maybe it is over a garage, exposed to more extreme temperatures. In most of these cases, balancing may help. But in extreme situations, such as poorly insulated rooms, or undersized ductwork, then no amount of balancing will fix the problem.

Below is a list of possible causes. Items in red usually require a service call. Items in blue however can be addressed, some even fixed by the homeowner.
Red = Professional fix | Blue = Homeowner fix
toolbox for heating and air conditioning service and repairs

  • Check for proper insulation
  • Check duct dampers
  • Check windows
  • Check fan speed, possibly boosting to higher speed
  • Check for clean blower wheel and coil
  • Check for properly sized and installed ductwork
  • Check for debri or obstruction in ductwork
  • Dirty filter - the cleaner the filter the better the airflow
  • Make sure vents are open, including all return vents
  • Check for proper damper positions
  • Make sure windows are fully closed and in good condition
  • Close shades and/or curtains

The bottom causes in blue are commonly found problems and can be addressed by the homeowner. Try to check for these conditions first before calling for service.

Please keep in mind that the information found on our website is provided free of charge and Hannabery HVAC does not assume any liability resulting from the information we provide. We hope this information helps, but please note that these are just rough guidelines, and not all possible situations are covered. Your HVAC system should be inspected and repaired by a trained technician.

Commonly Reported HVAC Problems


How Comfortable Do You Want To Be?

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[Must be in our service area]


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Our Credentials
BBB Accredited Business with A-plus rating, Allentown, Quakertown, Clarks Summit NATE-certified Service Technicians, Lehigh Valley, Lehigh County SuperPages SuperGuarantee Rheem equipment, Rheem dealer, Rheem installer, allentown, bethlehem, easton, pa Member of Associated Builders and Contractors (ABC) Eastern PA Chapter Trane Comfort Specialist Dealer Member - Greater Lehigh Valley Chamber of Commerce Angie's List 2012 Super Service Award Winner
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Main Office: 200 Schantz Road, Allentown, PA 18104

PA CONTRACTOR #8215

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Copyright © 1996-2014. Hannabery HVAC. All rights reserved.

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Hannabery HVAC has been proudly serving Eastern Pennsylvania homeowners and businesses for over 40 years. Our work areas include: