Posts Tagged ‘Heat Pumps’

Good Reasons to Install a Heat Pump

Monday, December 7th, 2015

We can never tell when we might need a new heater or air conditioning system, but if yours is on its last legs, now is a good time to consider a replacement. Cooling season is over for the next few months, and while the weather in Huntsville, TX has been chilly to say the least, it still falls well within the range to make heat pumps viable.

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Should You Install a Heat Pump Instead of a Traditional AC?

Monday, April 27th, 2015

Choosing an air conditioner for new installation can be tricky, but we’d like to help you narrow down your options with this suggestion: how about a heat pump? While you will still need a technician to help you find the right size for your home and a reasonable efficiency rating for your budget, deciding on a heat pump is a great first step to take toward long-lasting AC and heating for your home. (more…)

Heat Pump Repair Issues: Why Your House Is Too Cold

Friday, February 7th, 2014

Heat pumps are fantastic ways of keeping your home warm during a Texas winter. Since the only serious drawback heat pumps have is a possible loss of heating ability due to sub-freezing temperatures, it’s rare for a heat pump in Texas to encounter much trouble providing the heat levels necessary for a cozy season.

If you find that your house is too cold even though the heat pump is still humming away and blowing out air, then the problem almost certainly a malfunction of some kind. When this happens, call on Ardon Maintenance for your heat pump repair needs in Huntsville, TX.

Here are the most common reasons for a heat pump not warming your home:

  • A broken reversing valve: The critical component that makes a heat pump different from a standard air conditioner is the reversing valve. This electrically controlled valve sits on the refrigerant line and alters the direction the refrigerant flows through the unit: one direction for heating, the other for air conditioning. If the valve malfunctions, your heat pump can become stuck in AC mode even though you need heat. If your house is cold and the air coming from the vents seems as if it is cooled, then the issue is likely the reversing valve, and you will need to call a technician to replace it.
  • Thermostat troubles: A thermostat that begins to read the wrong temperatures in your home (“ghost readings”) will cause your heat pump to begin to turn on and off at the incorrect times, resulting in a cold house and uneven heating. Ghost readings can occur because of poor thermostat placement (a thermostat sitting in direct sunlight will register a warmer temperature and keep the heating off) or a miscalibration. More malfunctions that may require replacement of the unit could be causing it.
  • Refrigerant loss: Flowing through your heat pump is a chemical blend called refrigerant, which is responsible for the heat exchange that makes your heat pump provide cooling and warmth. The refrigerant is at a set amount—known as its “charge”—which does not lessen during normal operation. But if leaks occur, the refrigerant loss will hinder the heat exchange and you will not get sufficient heating from your heat pump. (Or cooling in AC mode.) Professionals will locate the leaks, seal them, and recharge the refrigerant.

Heat pump repair requires years of training as well as specialized tools; you cannot expect to fix these problems on your own. When your house feels too cold even though your heat pump is running, you must bring in an expert in heat pump repair in Huntsville, TX to locate the source of the malfunction and repair it accurately.

And when you need those repairs fast, call on Ardon Maintenance: we not only have skilled technicians on staff, but they’re ready 24-hours a day for emergency service.

What Causes Heat Pumps to Ice Up?

Friday, December 20th, 2013

Heat pumps in Texas take on a heavy burden. They get used extensively throughout the spring, summer, and early fall providing cooling for homes. When winter comes in and the occasional cold snap strikes, they switch over to heating… but they’ll still need to jump back to cooling on some days even during the winter. A heat pump in Bedias, TX will probably run a good chunk of the year in one mode or another.

When repair problems develop, you need to act on them before you lose both functions of your heat pump. An issue you might encounter with heat pumps is icing that develops across the indoor or outdoor coils. Even when using the air conditioning function, ice on a heat pump is a warning sign and means you need to call for professional repair. Ardon Maintenance has NATE-certified technicians to help you restore your home comfort when your heat pump starts to ice up.

The reason for ice on a heat pump

Despite the logic of it, heat pumps do not ice up because they’ve been blowing out too much cold air. (Heat pumps don’t create cold, they remove heat.) The icing can occur in heating mode as well. The reason that icing begins is usually a drop in the refrigerant charge inside the heat pump.

Refrigerant is the chemical that allows for the heat exchange that makes a heat pump work. This chemical blend runs through copper or aluminum tubes in a closed circuit, and under normal use does not dissipate. The refrigerant’s charge (its level) is balanced for ideal operation. Should leaks occur along the lines or in the compressors, whether from damage or corrosion, the loss of refrigerant will cause ice to develop along the evaporator coil—which is either the indoor coil or outdoor coil depending on what mode the heat pump is in.

This might sound strange. Losing refrigerant creates ice? What happens is that the drop in refrigerant makes it more difficult for the evaporator coil to absorb a sufficient amount of heat to stop it from icing over. As the ice grows, it blocks off the coil and drops its absorption power even further: a fully iced-over coil cannot execute heat exchange, and the heat pump will no longer be able to perform its job.

Excessive dirt along the coils can also cause the ice to occur, since this restricts the heat absorption ability as well. Have a technician investigate to find out the root of the problem. Refrigerant leaks will need sealing and the correct amount and type of refrigerant blend used to recharge the system.

Don’t ignore the ice!

The moment you see ice developing on either set of coils in your heat pump, call professionals for repairs. Ardon Maintenance is ready 24-hours a day to rescue your heat pump in Bedias, TX!