How — To Fix Blocked Defrost Drain

You will likely see a slab of ice in the drain pan beneath the coils. Use hot water and a turkey baster to melt this ice. Squeeze the hot water onto the ice, then suck the meltwater out with the baster and dump it into a bucket. Be patient—don't use a hair dryer on high heat, as you can warp the plastic liner.

You can identify a blocked drain line through specific warning signs: how to fix blocked defrost drain