Archive for March, 2012

Reasons Your Heat Pump Can’t Maintain the Right Temperature in New Castle

Thursday, March 22nd, 2012

When you set your thermostat in New Castle for a certain temperature, you expect that your heat pump will either heat or cool it to that temperature, right? When you want 72 degrees, you don’t expect to have the temperature stay stuck at 70 degrees while your heat pump struggles futilely.

Sometimes heat pumps have trouble maintaining the right temperature, especially in heating mode. It’s not uncommon, and it has a number of potential causes. Run through this checklist to see if it is something you can fix yourself:

  • The outdoor unit is iced up. Running a defrost cycle can usually fix this.
  • A snow drift in encroaching on the outdoor unit, making the unit too cold to work properly. Shovel it away and see if that fixes the problem.
  • The outdoor unit is not running at all. Sometimes this is simple enough to fix on your own. Read the manufacturer’s instructions to troubleshoot the problem.
  • Too much cold air is getting in the house for the heat pump to keep up. Make sure your doors and windows are closed to keep that valuable heat inside.
  • Your vents are closed. It may seem obviou, but problems like this can sometimes be attributed to user error. Make sure your vents are open to allow heat in.

This is by no means an all-inclusive list, and it covers just those causes that you could potentially fix yourself. There are many other possible culprits out there that could be more sinister and require professional heating system repairs.

Some of these include:

  • The compressor is not running.
  • A compressor valve or reversing valve is faulty.
  • The thermostat is malfunctioning or needs to be recalibrated.
  • The refrigerant level is low or there is a problem with the flow of the refrigerant.
  • The heat pump needs routine maintenance.

If your heat pump is not working properly for several days, especially after you have tried some of the DIY solutions above, call Bob’s Heating & Air Conditioning right away. Your heat pump may need repairs before a bigger problem develops.

Understanding the Heat Pump Defrost Cycle: A Guide from Bremerton

Friday, March 16th, 2012

If your Bremerton home has a heat pump, you’ll want to understand the defrost cycle to helps with the heating system maintenance and troubleshoot repairs. While this is a basic guide, you should call a qualified HVAC technician if you experience major issues with your heat pump.

During the winter when a heat pump is heating your home, the cooler outdoor air that’s pumped in and heated may have excess moisture. The outdoor coil evaporates this moisture, but under certain weather conditions, frost can accumulate on the coil and decrease the overall efficiency of the heat pump.  To help reduce the potential for damage from the frost, heat pumps are manufactured with a defrost cycle to melt the frost from the outdoor coil. The defrost cycle occurs often during heavy frost conditions, so check weather reports if your defrost cycle seems to be running often.

At the beginning of the defrost cycle, the heat pump switches to the cooling mode and temporarily warms up the outdoor coil until it reaches somewhere around 60° F to melt the frost from the coil. To increase the temperature of the coil, the outdoor fan is prevented from turning on until the outdoor coil reaches the desired temperature. Weather conditions and the timing device both affect the amount of time it takes for the heat pump to move through the entire defrost cycle.

In older homes, electric heating elements are sometimes installed to prevent cool air from being distributed throughout the home. This element will turn on with the defrost cycle and shut down the blower fan inside the house. If you have an older heat pump, you may want to consider upgrading to a more efficient model.

Call Bob’s Heating & Air Conditioning any time if you have questions about the defrost cycle for the heat pump in your Bremerton home.

HVAC System’s Condensate Drain Line for Fife Residents

Wednesday, March 7th, 2012

There are a lot of components involved in a properly working Fife HVAC system. One component that many people overlook is the drain line for the air conditioning system. Your air conditioning system has condenser coils that sweat the water drawn from the air in your home as it is cooled by your AC unit. These coils produce a significant volume of water, especially when it humidity is high, so a condensate drain pan is installed to capture the moisture and keep it from damaging your home.

A drain line from the drain pain out of your home is required to transfer all that extra water, but it can easily become clogged by debris in the area or simply from heavy condensation. If this happens, the drain line might need to be cleared or even replaced.

Inspecting your Condensate Drain Line

Full inspection of your drain line involves checking quite a few components, so I will point you to Inspectapedia for a thorough rundown of what you should look for (and some pictures to show you what you don’t want to see). But, in short, you want to look for evidence that your condensate drain is overflowing or that the liquid in your drain pan is backing up into the air handler.

You may also notice that there is no liquid coming out of the condenser – a sign that there may be a major problem in the system that needs immediate inspection. If this happens, make sure you check for blockages and if nothing is present, call a contractor.

Cleaning Your Drain Line

Each year, it is recommended that you clean your drain line to make sure it is clear and ready for the summer’s heavy cooling and high humidity. The simplest way to do this is to disconnect the drain line and attach a hose to blow the line clear. This can get a little messy, so make sure you dress for the occasion. Another option if you have a wet/dry vac is to attach the hose to the end of the drain line and suck free any moisture still in there. Most wet/dry systems have attachments for drain line clearing or you can order one.

If your drain line is not clearing properly or you think there may be structural damage suffered during the winter, call Bob’s Heating & Air Conditioning for some air conditioner maintenance. If you have regular maintenance done on your AC system each spring, this should be part of the process so make sure you write down any questions you have for when the contractor visits your home.