Air conditioning systems are an
inevitable elements to be used in industrial, commercial as well as household
premises. To make work or home premises comfortable for workers and ensure
proper incoming and outgoing of air, these systems play a very significant
role. Centralised Air Conditioning System has been enhancing the quality and lifestyle from several years till
now. In a formal and sure shot language, Air Conditioning is defined as the
process to condition humidity, temperature and ventilation in buildings.
Here we are describing some common problems & repairing of central
air conditioning systems.
Tips to
Troubleshoot central air conditioning system
If at a sudden, your centralized airconditioning system loses your cooling power you might be able to find out the
causes by yourself, however in certain cases you will have to contact an HVAC
professional for better assistance. Well! Here are a few tips which will help
you know everything about your home air conditioning system, and thus
troubleshooting will become easy for you.
There might be a problem with Refrigerant, Compressor, Condenser,
Expansion Valve and Evaporator coil. Sometimes there might also be an issue
with the thermostat. The recommended way to start troubleshooting is to start
with analyzing the symptoms of lost performance.
- If AC system does not switch on
Potential reasons
If you’re not able to activate air conditioning system, the major
possibility with the problem is with tripped circuit breaker or blown fuse,
fault in thermostat or internal switch is switched off.
Potential
solutions
●
Check whether thermostat is in cool position
& isn’t positioned to off.
●
Also, be sure that the thermostat is set below
current room temperature
●
Check that 240 volt circuit breaker controlling
air conditioning compressor and 120 volt circuit breaker controlling furnace
blower are switched on.
●
If circuit breaker trips or fuse blown, then
reset circuit breaker or replace the fuse.
●
If these steps do not work, the possibilities are
of serious issues like short circuit. And in such condition, you need to
contact technician for relevant assistance.
- Poor airflow from cooling vents
Potential Reasons
Due to unclean air filter or ductwork airflow there might be condition
of dirty airflow.
Potential
Solutions
●
Check whether air filter in handling system is clean. Replace it quick and replace with
new clean air filter.
●
Check complete ductwork very precisely in order
to ensure that it is neither disconnected or crimped.
●
Register dampers on vents in rooms in order to
ensure that they are completely open.
- AC does not humidify the air in Oversized systems
Potential Reasons
●
Failure to fight with humidity can be caused by
air conditioner that is very large for house.
●
If your system fails to sufficiently dehumidify
and it short cycles an oversized system might be the reason.
●
A system that is oversized cools the air very
fast that system is shut off by the thermostat before a sufficient amount of
humid air makes its way around the cooling coil to get dehumidification.
Potential
Solutions
●
The solution is to replace the condensing unit
& coils with sufficiently sized system.
●
As a next alternative step you can also use an
artificial way to cool load like extend air conditioning to our garage or
basement space with additional ductwork.
- Insufficient cooling through a long cycle of compressor
Potential Causes
Insufficient cooling coupled with long ON cycle of compressor is a
sign-in of a worn-out compressor that which has lost the ability of compressing
refrigerant.
The compressor is received in outdoor housing unit, and when you
listen it excessively running without cool air flowing within the house, you
will come to know that you have an issue.
Potential
Solutions
Contact a genuine technician and let him check the compressor and
replace the part if required.
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