(Today's mechanical code requires an auto safety switch to be installed on all new equipment to protect against water damage)
Under no circumstances should you ever see water around the indoor unit. This is a sign that something is either leaking or dripping not draining. Although it needs prompt attention, sometimes it is only a very minor problem.
In the cooling mode, the indoor evaporator coil and the suction line sweats. That's why it is wrapped in black insulation. If the insulation is missing or has been torn or split, it can cause dripping. Obviously this is easy to repair.
The evaporator produces a lot of water during the summer as it removes excess humidity from the air. The water runs down the outside of the coil into a pan that has a drain. The drain goes outside the house into a gutter or directly to the ground.
If the coil is dirty, the water mixes with the dirt; the dirty water ends up in the pan, the drain trap or anywhere else it can cause a problem. As the water flows by gravity, it doesn't take much dirt to clog a drain and if your coil is located in the attic or finished room, serious damage can result. This is a very important reason for having clean filters and an annual inspection that includes coil cleaning.
Sometimes the indoor coil actual ices up. When the ice melts, excessive water all over the floor or ceiling is the result.
Indoor water problems are not just limited to summer. Some of today's high efficiency furnaces also produce condensation, which must be drained. A central humidifier also can cause leaks. All of these things emphasize the necessity for annual inspections plus you should always keep your eyes open for water, as it is a sure sign that something is amiss. Sometimes it is a simple fix; sometimes not.
Below is a list of possible causes and things to check. Items in
Suction line missing insulation
Drain line moved or not pitched downward
Floor drain clogged with dirt
Blocked pan, trap or drain
Indoor coil frozen due to malfunction
Dirty or defective evaporative coil
Cracked condensate pan
Broken fittings or pipe; unglued joints
Kinked tubing Humidifier over filling or leaking
Hope this has been of some assistance, however they are just rough guidelines and not all possible conditions are covered.
The company You Choose To Install and Service Your System Will Determine The Degree of Comfort and Satisfaction You Enjoy.
Excerpts of the preceding information have been compiled by Hannabery HVAC, which has graciously permitted us to include them on this web site as a service for all homeowners.
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