AC Blowing Warm Air

AC Blowing Warm Air

It oftenseems that a broken air conditioner occurs during the worst possible time. Youdutifully ensure all the thermostat settings are correct, check the circuitbreaker, and unfortunately, nothing changes, the AC is blowing warm air.

Cypress Heating & Air Conditioning in the Katy and Fort Worth metropolitan area canprovide the air conditioning repair you need. Our expertise in repairing air conditioning problems isunparalleled, and our NATE certified HVACtechnicians have the training, and years of experience under their belt forthe majority of the major brands. When your AC is blowing warm air, contact our certified HVAC experts for AC repair. The following tips can potentiallyassist you in restoring the cool comfort of your home before calling atechnician.


The thermostatcontrols the refreshing, cold air that your air conditioner delivers.Unfortunately, thermostats eventually wear out. When they do they affect theoperation and performance of the home’s HVAC system, and that often results inthe AC blowing warm air. Anadditional cause of thermostat failure can be bad wiring. Power surges are anunfortunate problem routinely affecting the power grid, and it’s common forsurges to damage electrical wiring of all types, including those connecting thethermostat and the HVAC system. Wiring damage poses the hazard of a potentialfire in the home, and should be inspected and repaired promptly.

Annual systemmaintenance assures the identification of existing or developing problems, andprovides the opportunity for repair, often before small problems damage othercomponents. In other words, maintenance may reduce the amount of repair, and mayeven prevent issues such as the ACblowing warm air. Cypress Heating & Air Conditioning offers NATE certifiedHVAC technicians for all of your heating and air conditioning needs.


While thecompressor is the heart of the airconditioning system, refrigerant is its life’s blood. Refrigerant is in aspecified quantity for each system, and levels that are either excessive or toolow create problems. Refrigerant doesn’t ‘wear out’, and if the level drops thereis a leak in the system. The loss of refrigerant is a common cause for the AC blowing warm air.

Anadditional sign of low refrigerant can be the presence of frost or ice on the refrigerantlines. When a refrigerant leak occurs, it will require repair to prevent thecontinued leakage of refrigerant. Pumping additional refrigerant into thesystem won’t stop the leak, and can potentially damage the environment. Thelaws regarding refrigerant are strict, only trust your AC repair to a certified HVACtechnician.


Dirty coilscan arise from many variables. In a split system, coils are located both insideand outside of your home’s AC system. Dirty coils result in problems, includingthe potential for the AC blowing warmair. In a split system, the evaporator coils are located inside the homewhere the air filter is located. Theair filter provides an importantrole in keeping the indoor coils clean, and requires routine changing orcleaning depending on the filter type.

Thecondenser coils are located on the outdoor condenser. The care of the outdoorcoil includes care when cutting the grass. Don’t allow the discharge chute ofthe mower to throw grass on the condenser, and maintain adequate free spacesurrounding the condenser without vegetation or other object to impede the airflow.Doing so can result in serious damage to the unit.

Annual maintenanceby a certified technician provides the best means of assuring proper operationand peak performance of the air conditioning system. In addition, the properoperation saves you money on the cost of energy. Furthermore, the lack ofmaintenance will reduce the system’s lifespan significantly, while costing youmore to operate with lost efficiency and an increase in AC repair.

TheEvaporator Drain

You mayhave noticed the drain pan beneath the evaporator coil of the indoor component ina split system. The water collects in the pan from the evaporative process anddrains way through a small drain line. The drain can clog from dirt, debris,and even algae growth, resulting in an overflowing pan and damage to the home’sflooring, and structure. The repair can be quite costly to replace floor joists,subflooring, and flooring. The cost of an annual maintenance visit is afraction of the cost for the average repair related to a clogged drain line.

CypressHeating & Air Conditioning offers NATE certified HVAC technicians for providing the professional HVAC services meetingor exceeding the industry standards. When your AC is blowing warm air, call our certified HVAC professionals for air conditioning repair, maintenance,or professional installation. You can rely on our technicians’ expertise forquality services and your satisfaction. We serve Katy, Plano and surroundingareas, and are a member of the BBB with an A+ rating.