Plumbing and heating expert Richard Trethewey shows how to prevent ice buildup from shutting down an air-conditioning system. (See below for steps.)
SUBSCRIBE to This Old House: http://bit.ly/SubscribeThisOldHouse
Steps for How to Repair a Frozen Air Conditioner:
1. Clean or replace the return-air filter to ensure it’s not obstructing the flow of fresh air to the air conditioner.
2. Confirm that the size of the air-conditioning unit can accommodate the diameter and number of cool-air ducts.
3. Remove the metal access panel to expose the evaporator coil.
4. Check the size of the outdoor condenser unit. Typically one ton of cooling is needed for every 500 to 600 square feet of living space.
5. If the condenser is too big for the house, it can cause ice to form on the evaporator coils and shut down the system.
6. Pump out and collect the refrigerant from the existing too-large condenser.
7. Disconnect the old condenser and cart it away.
8. Install a new appropriate-size condenser.
9. Connect the new condenser to the existing electrical power supply and refrigerant lines.
10. Remove the old evaporator coil and replace it with a new coil that matches the tonnage rating of the new condenser.
11. Reconnect the ductwork and seal the new evaporator cabinet at top and bottom with sheet metal strips and foil tape.
12. Braze new copper connections to the refrigerant lines.
13. Insulate the suction line.
14. Connect PVC pipe to the condensate drain and then attach the pipe to a pump.
15. Run flexible tubing from the pump to a drain.
16. If necessary, add refrigerant to the new system.
17. Turn on the air conditioner to ensure it’s operating properly.
About Ask This Old House TV:
Homeowners have a virtual truckload of questions for us on smaller projects, and we’re ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O’Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.
Follow This Old House and Ask This Old House:
For more on This Old House and Ask This Old House, visit us at: http://bit.ly/ThisOldHouseWebsite
How to Repair a Frozen Air Conditioner | Ask This Old House
Essential Heating Repair Tips and Tricks
Heating repair bills can add up fast. These tips will help you maintain your HVAC system and help you decide when to call in a professional.Guide On How To Maintain Air Filters
You need air filters in your car, house of office. You can install the units in different areas of the house including: Ceiling, furnaces, walls and in the air conditioner. The units play a vital role of improving air quality where they trap dust particles and allergens thus preventing them from gaining access into the house. For the units to continue working efficiently you need to take good care of them.Types of HVAC Repairs
At one time or another, you may need to implement various types of HVAC repairs. The initials “HVAC” stands for Heating Ventilation and Air Conditioning systems. They are the systems that help to keep you comfortable by regulating the air flow and temperature and help to control the climate in the home.Super Energy Saving Tips for Your Air Conditioner
According to studies it has been found that air conditioning uses up to 16% of energy consumptions. It can be as high as 60-70% in warmer areas. A few changes in your air condition setting and your lifestyle can bring in a significant reduction in energy consumption.How To Choose The Best Air Conditioner for Your Home
Every home needs a comfortable climate. Whether it’s a new home building project, or a home improvement project, air conditioners are essential for the comfort and well being of a family. It is often not easy to choose an ideal cooling and heating system for a home. Depending on the objectives and intent of the home owner, an ideal option may vary greatly, and there are a myriad of different options to consider.