A heating, ventilation, and air conditioning (HVAC) system is one of the most efficient ways to heat and cool down a building structure. However, there are numerous things that can go wrong with the system and cause it to become useless until the problems are fixed. A problematic HVAC system can be difficult diagnose without help from a professional technician. The reason why is because the location of some of the most important system parts are not easy to assess without the right skills. This article has answers to questions that you might have in regards to the common problems of an HVAC system.
Why Doesn't the Heater Work?
The most common reason for an HVAC system heater to stop working is due to the furnace not being ignited. The problem can actually be resolved in timely manner, as all you will need to do is hire a technician to ignite the pilot, which is a fast task. If your furnace runs off of gas, it is possible that the gas line is clogged up and need to be cleaned. Another reason for the heater to stop working is due to electrical problems. You might need to turn on a circuit breaker or get the power cord to the furnace fixed.
What Causes a Lack of Cool Air?
A lack of cool air from an HVAC system can stem from the evaporator coil needing to be cleaned. A technician can remove dirt and debris to make it easier for warm air to touch the metal coil. The reason why warm air must make contact with the coil is because it is the main way in which the system cools it down. It is also possible that your system is low on coolant and need to be recharged. Dirty air ducts can lead to an HVAC system struggling to cool down a building structure as well.
Why Won't the System Come On?
If an HVAC system has stopping coming on altogether, it is a sign that something is wrong with the thermostat. A technician can perform an inspection of the thermostat to find out if there are any problems to be concerned about. A broken switch on a thermostat can lead to you being unable to turn it on. The switch can likely be repaired if the thermostat is in overall good shape. However, it is possible that your HVAC system is simply worn out beyond repair and a replacement should be purchased.
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