It can also be a result of loose drain lines and pipes.
Furnace condensate drain line freezing.
Drain problems can be caused when dirt or other forms of debris clog up the drainage system.
The condensate lines in your hvac system are responsible for draining the excess moisture caused by humidity.
We went outside and saw the drain line was about 2 feet long of 2 pvc mounted vertically about 6 inches off the ground.
If there are clogs anywhere in the condensate line the system will freeze.
Condensate drain line frozen condensate line frozen drain line furnace heat tape high efficiency furnace hvac ice melt insulation winter 0 with temperatures dropping condensate drain lines have a higher chance of freezing.
Don t let your condensate line drain against the side of your home.
Water leaking outside the drainage system or gathering up inside ac components can eventually freeze.
Last night my heat forced air suddenly stopped.
In north carolina code officials responded to last winter s troubles by amending the building code to allow just that.
Cut your condensate line close to your house so the water drains before freezing.
Just saw off the portion of the line that is frozen.
An easy cure for this is to routinely check the drain system of your ac.
Then there s the obvious answer.
The best way to stop condensate drain line freeze is to use weather proof sleeves placed around the drain.
The moisture is drained through pipes leading to the floor drain.
The vast majority of your condensate line should be inside your home where it s warm.
Condensate switches imc 307 2 3 states that all hvac equipment that produces condensate must have either a secondary drain line or a condensate overflow switch a secondary drain pan with a secondary drain line or condensate switch or some combination of these installations should be used to prevent overflow if the primary drain line blocks.
Today a plumber figured out that my heater is 90 efficient produces lots of condensate and the drain line had frozen.
Drain the furnace condensate into the sewer line instead of pumping it outside the house.
Prevent frozen furnace condensate drains.
Shortening the drain pipe to give water less space in which to freeze can also be effective.
There are a few things that can prevent future freezing from occurring with a scheduled furnace service call.