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Why Is My Furnace Leaking Water?

If you discover water under your furnace, there’s a good chance that it is caused by condensation and there is nothing to worry about. However, it’s still a good idea to call in the furnace repair professionals to check in case there is an issue, which could develop into bigger heating repair problems later.

Common Causes of a Leaky Furnace

Condensation

High-efficiency gas furnaces have 2 heat exchangers. Condensation is formed and if the condensate pipe is clogged or cracked this could result in liquid pooling under the furnace. This is an easy furnace repair to make.

Another possible cause is a malfunctioning condensate pump, which functions to push the water to the floor drain. If the pump is the cause they are reasonably priced and it shouldn’t be an expensive job for furnace companies to repair or replace.

Air Conditioning

The furnace and air conditioning are used interchangeably as the seasons change. It may appear that your furnace is leaking when in actual fact it could be condensation from your air conditioning system leaking into your furnace.

Whole Home Humidifiers

Home humidifiers are connected to the heating system and add moisture to the air. Occasionally it is possible that moisture from the humidifier ends up in the furnace and then leaks on the floor.

Heat Exchanger

The worst cause of a leaky furnace is a cracked heat exchanger, this is a serious problem because it can lead to a carbon monoxide leak which is extremely hazardous. Unless your furnace is still under warranty, the best solution for this is to replace the whole furnace and call for furnace installation.