Tag Archives: circuit breaker

Heat Pump Troubleshooting Advice | Heat Pump Problems


Heat Pump Troubleshooting Advice | Heat Pump Problems

Heat Pump Troubleshooting Advice: Before calling a heating and air conditioning company, check the following:

Defrost Board and other controls on an open control panel - Heat Pump Troubleshooting Advice

Defrost Control Board

  • Check selections on thermostat. Ensure that it is set to the desired settings.
  • Check power supply. This can include a circuit breaker and or/a regular looking wall switch close to the unit
  • Check for freezing up of air conditioner or heat pump units. If the air conditioner or heat pump unit is frozen turn it off. Check the air filter(s) and supply vents to make sure they are not obstructed in any way. If you find no problems leave the unit turned off and call a service company.

Heat Pump Troubleshooting Advice – Additional Helpful Hints

  • Always change your filter on a monthly basis
  • Make sure all your supply vents are open and unobstructed
  • Keep area clean around indoor unit especially the return grills
  • Keep outdoor condensing units free of leaves, grass, and debris including trash cans and/or children’s toys or playthings like small plastic pools or playhouses. Additionally your service technician will appreciate you not planting holly bushes near the outside unit
  • Have air conditioner, heat pump, or furnace system serviced every six months

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Start Capacitors for HVAC Compressors | Motor Start Assist


Start Capacitors for HVAC Compressors

Start Capacitors for HVAC Compressors - Start Capacitor with Potential Relay
Start Capacitors for HVAC Compressors – HVAC single phase compressors always come hooked up to a run capacitor to help the compressor when it is running however very few HVAC compressors come with a start capacitor. Most HVAC technicians know that the air conditioner or heat pump compressors pulls a lot of amps on start up and this large amount of amperage draw on start up is referred to technically as locked rotor amps or inrush current and can be as much as 40,000 watts or more of pure power to get an HVAC compressor started. That large amount of amperage on the compressor windings over and over again can slowly degrade or eat away at the life of the compressor as it starts over and over again during the summer for the air conditioner and year round for the heat pump. The run capacitor does little to help the compressor on start up so in certain circumstances the manufacturer will recommend installing a start capacitor on new installations and it is a prudent thing to add a start capacitor to older installations where we need to give the compressor a slight boost on start up. There are two ways we can do this job of helping the compressor start. The first method is usually for older installations on compressors that are having issues starting and most technicians use this method when they encounter a compressor with problems. The technicians use a hard start kit which is usually available at the local HVAC supply house and is easily hooked up to the compressor wiring following the directions on the hard start kit wiring diagram. Of course every HVAC tech knows it is important for safety to turn off the power to the unit and discharge any capacitors before proceeding otherwise serious injury or worse can occur.


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HVAC Jobs and Careers | Heating and Cooling Employment


High Performance HVAC Jobs and Careers

HVAC Jobs and CareersHVAC Jobs and Careers – So you want to become an HVAC Technician and want to know how to find a successful career? It’s not easy but here’s some help for you. First of all you need a good foundation of the basics and it would help if you understood the different types of jobs you can find by pursuing a career in HVAC. The education foundation will take you very far and will lead better jobs. To get this foundation you need to study and read. Burn those books up and study so that you can understand basic principles. Take some courses at the local university or trade school and find yourself a job working for an HVAC company. The HVAC books will help you with theory in temperature relationships (Basic physics) and electrical theory which is important to understand if you want go far in the trade.


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Troubleshooting Broken Thermostats | HVAC Control


Troubleshooting Broken Thermostats

Troubleshooting Broken Thermostats

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 their systems that keep them comfortable year round. There comes a time when the thermostat has a problem or the end user wants to replace the thermostat because they think it is a broken thermostat. It is not uncommon for a person to call an HVAC contractor and tell the secretary that they think the thermostat is broken because their air conditioner or heating system does not work. In some instances this is the case while in others the thermostat is not broken but something is wrong with the air conditioning and heating equipment that needs to be repaired. In either case it is usually best to call an HVAC professional to look at the problem especially if you want to replace the thermostat. There are a few things you can check with your thermostat before you call an HVAC professional. A little thermostat troubleshooting is in order.


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SUNDAY, May 24, 2015

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