Chappell Central, Incorporated {FAQ}
Why should I have my cooling system professionally cleaned and inspected?
Frequently Asked
Questions
Freon
Contrary to popular belief, air conditioners do not consume refrigerant/Freon as a car consumes oil, so under ideal conditions it would never need changing or filling. Therefore, a low Freon level indicates a leak which should be repaired before adding more. While most new system connections are welded to minimize leaks, many older units were connected with mechanical flared fittings which can vibrate loose over the years, causing leaks. Freon leaks are a problem because: Low or high Freon levels drastically reduce efficiency of the air conditioner
They can freeze the evaporator coil, causing it to literally ice up. Freon is an Environmental Protection Agency (EPA) controlled substance, deemed hazardous if released into the environment. The heart of the unit is the compressor, which is cooled by the refrigerant. Over time, low Freon levels can cause overheating and premature failure of the compressor, often requiring complete replacement of the compressor or the entire condensing unit – a very expensive proposition.

Regular Tune-ups
We recommend annual air conditioning tune-ups in the spring and furnace tune-ups every fall.
Although regular check-ups will not absolutely guarantee that a unit will continue to work perfectly throughout the season, they will reveal most small problems that can lead to major, far more expensive problems if left unattended and will keep the unit running at peak efficiency.

Tune-ups
Tune-ups consist of the following:
Clean indoor and outdoor coils
Clean blower wheel and motor, lubricate motor and check belt
Check thermostat operation and calibration
Check operation of all safety controls
Check current draw and voltage under full load
Inspect wiring and connections, repair if necessary
Check refrigerant charge
Test compressor contacts
Inspect air filter condition
Check condensate pump and drain line
Check fan switch operation and adjust settings
Service sticker installed

Maintain air conditioning unit
The first thing to check before turning on your unit is to make sure the condensing unit located
outside is not covered up. The unit needs to draw air into the system in order to have something to cool and blow out inside, but the process is hindered if it cannot pull enough air in from outside.

Basic Tips Include:
1. Run your air conditioner for a few minutes now, before you need it. If you wait until the first hot day to discover it isn’t working, you’ll find yourself on a waiting list, sweltering sometimes for days before an air conditioning specialist can come to fix it.
2. Change the filters regularly. Dirty filters restrict air flow, reducing efficiency and worse case,
can cause the evaporator to ice up. Disposable fiberglass filters should be replaced monthly, media style filters should be replaced every 4 to 6 months, electrostatic or electronic filters need to be washed every month to every other month.
3. Be sure all access panels are secure, with all the screws in place.
4. Clean obvious obstructions such as newspaper, leaves, etc. from around the exterior of the unit.
5. Be sure the thermostat is set in the cooling mode. Just setting the dial below room temperature will not activate the air conditioning if it is set in the heat mode.
6. A thoroughly cleaned air conditioning unit will operate at top efficiency. However, homeowners are strongly discouraged from using a hose and water to try clean it themselves because of the very serious risk of electrical shock and possible shorting of electrical components. Like most everything you own, you will find that regular maintenance is far less costly than repairs or even replacement later.

Feel free to call Chappell Central and talk with our knowledgeable staff if you have any other
questions or concerns. CALL: 320.235.2151

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