If the drain lines become restricted by sediment or mold growth, the furnace will shut down. If the drain hose looks dirty, remove the hose, fill it with a mixture of bleach and water (25 percent ...
The Family Handyman on MSN1mon
8 Simple Fixes if Your Heater Is Not Working
If the drain lines become restricted by sediment or mold growth, the furnace will shut down. If the drain hose looks dirty, ...