Troubleshooting Tips

Problem: No heat.

Causes: Furnace switch or main breaker open; thermostat set too low.

Solutions: Check switch, fuse or breakers, and the thermostat. If the blower runs but there's no heat, check the fuse or breaker block.

Problem: Cycles on and off too often.

Causes: Clogged filter or failing blower, causing unit to overheat.

Solutions: Replace the filter. Oil and adjust the blower.

Problem: Not enough heat.

Causes: Improper thermostat setting; defective heating element; clogged filter or duct.

Solutions: Check thermostat first, then the fuse or breaker; replace a blown fuse or flip on the breaker. If the fuse blows or breaker trips when you turn on the power, call a professional. Replace the filter.