Then there s the obvious answer.
Furnace condensate drain line freezing.
If there are clogs anywhere in the condensate line the system will freeze.
There are a few things that can prevent future freezing from occurring with a scheduled furnace service call.
Last night my heat forced air suddenly stopped.
Cut your condensate line close to your house so the water drains before freezing.
Drain problems can be caused when dirt or other forms of debris clog up the drainage system.
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.
Today a plumber figured out that my heater is 90 efficient produces lots of condensate and the drain line had frozen.
An easy cure for this is to routinely check the drain system of your ac.
Drain the furnace condensate into the sewer line instead of pumping it outside the house.
In north carolina code officials responded to last winter s troubles by amending the building code to allow just that.
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.
During periods of snow verify that snow hasn t risen to the level of the drain line where it can block it and cause further freezing.
The vast majority of your condensate line should be inside your home where it s warm.
Prevent frozen furnace condensate drains.
We went outside and saw the drain line was about 2 feet long of 2 pvc mounted vertically about 6 inches off the ground.
It can also be a result of loose drain lines and pipes.
Just saw off the portion of the line that is frozen.
When the condensate drain lines freeze a residential furnace repair is the best option to thaw the line and check to make sure your indoor unit and its vital components were not damaged.
Shortening the drain pipe to give water less space in which to freeze can also be effective.
The moisture is drained through pipes leading to the floor drain.
Furnace condensate lines in the state can now be routed into the home s sanitary drain.