by High Performance HVAC | Heat Pumps |

Heat Pump Indoor Fan Runs Continuously – Richard, what would cause my heat pump indoor fan to run continuously? My indoor fan motor, on the heat setting, runs constantly and won’t cut off unless I lower the thermostat by 2° F. It is sometimes annoying for me to constantly change the setting just to get it to shut down plus trying to maintain a comfortable temperature without the fan running all the time. What could the problem be and is it something I can fix myself or do I need to call in a service company to make the repair? Thank you for your help!!
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by High Performance HVAC | Technical Reference |
Blowing Low Voltage Fuse Breaker Trip | Control Wiring Troubleshooting - I’ve got a 5 amp fuse that keeps popping on a circuit board. The voltage out of the transformer reads 26.3 volts. I am still popping fuses and reading over 24 volts. Can you help?
Okay, I can give you some of the basics to help you but first, we need to clear a few things up. You seem to think the voltage is what is causing the fuse to blow. First, it is not voltage that causes fuses or breakers to blow or trip. Secondly, it is amperage. Finally, it is likely you have a dead short from what you are describing but let’s go through the basics first: (more…)
by High Performance HVAC | Air Conditioning |
Replace HVAC Compressor for Air Conditioner Repair - Question - Richard - I am an HVAC technician and have read all of your articles on refrigeration and compressors. Great information and it has helped to hone my skills and offer better service for my customers. Thanks!
I was wondering what your experience is with replacing compressors. How do you decide to replace a compressor technically speaking, of course? Do you recommend repairing the air conditioner by replacing the compressor or replacing the central air conditioner?
I look forward to reading your answer. Brett Des Moines, WA
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by High Performance HVAC | Boilers |
Why Does My Steam Boiler Run Out of Water - All boilers need a constant supply of water from a make-up water source. In a steam boiler system, there are vents that vent condensation. The vents can be found on the radiators and throughout the pipe system especially on large systems that serve larger buildings. Venting is limited to a small amount of the entire H2O and steam volume inside the piping and radiators but does need to be replaced.
Most of the steam condenses and is returned to the boiler through the return piping system either by gravity or a condensate pump. As the system uses steam it vents the condensation of steam and this displaces water from the steam system that needs to be replaced and the replacement H2O comes from a make-up water source. (more…)
by High Performance HVAC | Thermostats |
What you will learn from the Troubleshooting Broken Thermostats article:
- One of the most common trouble calls for HVAC heating and cooling
- Basic checks of the HVAC System thermostat to see if it is broken or?
- The basics of the thermostat for an HVAC system
- Learn what a heating anticipator is and what type of thermostat uses them.
- Fixing a Broken Thermostat for an HVAC System
- Finally, lots of related useful links to help you learn your heating and cooling HVAC system
Troubleshooting Broken Thermostats - The main connection between the air conditioning and heating system and the end-user is the thermostat. Beyond the air conditioning and heating thermostat, many people know nothing about the HVAC systems that keep them comfortable year-round. While the thermostat may be the problem, make sure you eliminate other possible heating and cooling problems.
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by High Performance HVAC | Gas Furnaces |

White Rodgers Gas Furnace Ignition Control Board
Electronic Ignition Gas Furnace Problems Troubleshooting - Gas furnaces are a prevalent form of heat for homes and businesses, and occasionally a gas furnace needs to be repaired because of a problem with the gas furnace.
Since there are many different types of gas furnaces, it is difficult to cover every single possible gas furnace problem that can occur with a gas furnace in one article. We are going to break this theme “gas furnace problems” down into a series of articles with the first one being gas furnace problems with electronic ignition gas furnaces.
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by High Performance HVAC | Gas Furnaces |
What you will learn from
Gas Furnace Troubleshooting and Repair :
- Where to begin your troubleshooting efforts
- Checking the basics
- Checking the blower motor
- Additional furnace component checks for problems
- Lots of valuable related links to give you a closer look so you will learn more about HVAC
Gas Furnace Troubleshooting or Any Furnace Repair should only be done by a qualified HVAC Technician
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