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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.]


Not Cooling, No A/C, No Cool Air,
No Air Conditioning:

This is probably the most common Summer-Time Complaint! But first things first, please check all of the obvious things (listed below) before scheduling a service-call.

No A/C Checklist:
  • Is the thermostat set to "cool" and turned down below room temperature?
  • Is the Power on to the indoor unit? Did you check the breaker?
  • Is the Power on to the outdoor unit? Did you check the breaker?
  • If yes to these, is the outdoor unit running?
  • If no, see if the outdoor unit has a red reset button (most Rheem equipment does, located near refrigerant lines), and push it.
  • If that didn't work, see if you have a condensate pump at the indoor unit. If you do, some pumps have a safety switch that shuts off the outdoor unit if the pump overfills and fails to pump. So check the pump to see if it is working.
  • If that wasn't the problem, back outside at the unit there should be a disconnect box mounted on the wall. These come in many styles. Some have an on-off switch, some have a pull-out plug. Some have a circuit breaker and some even have fuses.
  • pull-out time-delay fuses in the outdoor unit disconnect box
  • If it has a breaker, make sure it didn't trip. If it has fuses, they should be checked.
    Caution: High Voltage, danger of electrocution. Please do not attempt this unless you are familiar with working with electricity.

For more possible causes as to why your outdoor unit isn't running, please see:

If you have checked all of these things, and your unit still isn't running, then you should schedule a service-call.

If your outdoor and indoor units are BOTH RUNNING, BUT NOT COOLING, make sure that all windows and doors are closed, your supply and return vents are open - not blocked, and that your air filter is clean. If no problems there, then you should probably turn the air conditioning off and schedule a service-call.

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

  • Low refrigerant charge
  • Refrigerant flow-related problem - restriction
  • Faulty metering device
  • Poor efficiency- needs cleaning and servicing
  • Bad reversing valve
  • Bad compressor valves
  • Duct leak in unconditioned space
  • Clogged air filter
  • Outdoor coils damaged or very dirty
  • Open windows
  • Poorly insulated
  • Closed vents
  • Humidifier running

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: