Central Heating and Air Conditioning Repair Tips Central Heating and Air Conditioning Repair Tips

If your heating and air conditioning is in need of repair, you can make some maintenance checks around your system to see if you can carry out the task yourself. If you need to call in a registered contractor, having a detailed list of possible issues will help to quicken the process and possibly save you money.

Tip 1 – Circuit Breakers

The first thing to check is whether or not your heating or air conditioning is working at the circuit breaker. The main breaker box in your home is normally found in the garage, but, depending on the style and age of your home, you will probably already know where it is located. Open the breaker box and make a thorough check of all the main fuses connected to the circuit that runs your heating or air conditioning system. If one or more fuses have tripped, you can just flip them back on If a fuse is blown, replace it immediately.

Tip 2 – Electric Heating Systems

In a large number of electric heating systems, you will find two thermostats (although this may not always be the case).  Unscrew the cover plates to locate them. You will find one thermostat near the top end of the water tank and one closer to the lower end. The top thermostat has a ‘high limit’ switch located close to it. This may have been tripped by the water overheating. If so, locate the button (usually red) to switch it back on. Check all the wiring leading to and from both thermostats and make sure there is power running to both of them.you can use a mulitmeter for this.

Tip 3 – Pumps

The problem with your heating system could stem from an issue or fault in the water pump. All water pumps are different but all of them will have shut off valves. If you have located your problem to be with the pump, you will need to replace it with a new one. Depending on the style of you system you have, you may see a valve on either side of the central heating pump. Close both valves to shut off any the water flowing to the pump. Remember to use cloths under the pump because when you release the valves and loosen the nuts, you will always lose a few drips of water; protect the floor with cloths.

Tip 4 – Inside the Air-Conditioning

The evaporator coil, which is located inside the air handler, should be checked at least once a year to make sure there is no dust build up on the surface of the coil. This will cause the same symptoms that a dirty filter will cause and that could cost you more money in many ways. Remove the cover from the unit and disconnect the coil. Remove any pipes and tubes and replace the unit with a new one.

Tip 5 - Ice Build Up

Ice build-up occurs when there is low air flow through the evaporator coil. The evaporator coil can easily be damaged if the ice build up is too severe. Problems with the refrigeration system can cause a pressure drop in the evaporator coil, which will allow moisture to freeze and accumulate on the coil.

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