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Heat pump repair service

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Heat Pump Repair Service

Heat Pump Repair Service

This is a York Affinity 18 split Heat Pump that we installed.

Heat pumps are refrigeration systems similar to air conditioners but with more accessories and controls to enable them to heat as well as cool. Heat pumps are more complicated than air conditioners. This why it is critical that your service provider have a keen understanding of the refrigeration process as well as the controls involved. An incorrectly operating heat pump can run your electric bill very high. Singer Heating and Cooling is your NATE certified heat pump repair expert.

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Heat Pump FAQ’s

Q How do heat pumps work?
A In the cooling mode, heat pumps work like air conditioners. Hi pressure hi temperature vapor refrigerant is discharged from the compressor into the outdoor coil where it is condensed into liquid form and thus rejects heat to the outdoor air. That liquid refrigerant is pumped to the indoor coil where it evaporated into vapor form and thus absorbs heat. In heating mode the reversing valve switches the roles of the indoor and outdoor coils. Hi pressure hi temperature vapor refrigerant is discharged from the compressor into the indoor coil and liquid refrigerant is pumped to the outdoor coil. This a mechanical process of moving heat from location to another. With this understanding it is easy to see why heat pumps loose capacity as the outdoor temperature drops as it is harder to absorb heat from colder outdoor air.
Q  My heat pump started blowing stinky air shortly after switching from cooling to heating.  What causes this and what can be done to eliminate the odor?  
Your Heat Pump may have dirt sock syndrome,  DSS.  To learn more about DSS please click here.

Q Why does my heat pump need to defrost?

A When operating in the heating mode, a heat pumps outdoor coil will be approximately 20 degrees F below the temp of the outdoor air. If it is 40 degrees F outside, the outdoor coil will operate at approximately 20 degrees F. Condensation will accumulate on the outdoor coil and frost will form. This frost will form a blanket over the coil that will prevent air flow and heat absorption. Heat pumps will enter defrost cycles to melt the frost blanket.

Q Why should I have my heat pump checked in the Fall?

A If your heat pump is low on refrigerant, it won’t be able to put out much heat at all. This will mean that the auxiliary heat will be doing most of the heating. The auxiliary heat cost approximately 3 times as much per unit of heat as the heat pump does. You may not notice the problem until your hi electric bill arrives after the first cold month of the heating season. The reason that this often happens is because the auxiliary heat will keep the house warm.

Q. How do I know when it’s time to replace my Heat Pump?

A. If the unit is approaching 10 years in age and needs the replacement of a major components such as the compressor, reversing valve, indoor or outdoor coil, it would be advisable to replace instead of fix. Most new heat pumps come with a 10 year part warranty covering the whole machine. Repair warranties only cover the part that was replaced.

Q What is the average life-span of a Heat Pump?

A  Generally, the average life-span of a well maintained heat pump is 12-15 years, but individual units may vary and some last much longer. An AHRI survey showed average heat pump life to be about 14 years when recommended maintenance procedures were followed.

Q Can I repair my own Heat Pump?

A In most cases, no. Heat Pumps operate on a 240 volt circuit. Severe shock or electrocution is possible without a thorough understanding of electricity. The refrigeration cycle of a heat pump is more complicated than a cooling only air conditioning system. Many service technicians lack the knowledge required to diagnose mechanical and control issues on heat pumps. This is not a good DIY project.

Q Should I switch to Emergency Heat when it gets below 30 degrees outside?

A No that would be poor use of energy. A heat pump can provide efficient usable heat as log as the outdoor temp is above 0 degrees F. The heat pump and the electric auxiliary heat work together – automatically. Emergency heat should be used for temporary heating when  experiencing problems with the heat pump. If you are not sure if you need to use your emergency heat or not, please give us a call. We will be glad to assist you over the phone whether you decide to use our services or not.

Q How often should I change the air filter in my system?

A Standard one-inch air filters should be checked every month during peak use, and replaced if it looks dirty enough to impair the air flow through it. Some filters, such as electrostatic filters or electronic air cleaners, are washable; others, such as media type air cleaners are disposable and must be replaced, but many of those are designed to last up to six months, even a year.

Q  My heat pump’s compressor hums and dims the lights in my house but does seem to be running.  What causes this.

A  Your compressor may be hopelessly locked up but more commonly this is the caused of a bad capacitor or starting component.  There are other potential causes that an experienced technician can diagnose.


Singer Heating and Cooling

3595 Brooks Rd

Phone: 865-640-5047