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Quick Fixes - Heating System



Problem: There is no heat at all.


  • Check if a fuse was blown or a circuit breaker was tripped.
  • Install a new drive belt.
  • Call a qualified professional for help.

  • Problem: Your rooms aren't warm enough.


  • Replace the filter.
  • Clean the registers: remove anything blocking the register.
  • Repair leaking ducts with duct tape.
  • Contact a qualified professional.

  • Problem: Soot collects in your house.


  • Install a new filter.
  • Contact a service professional to clean the heating system.

  • Problem: The blower makes unusual noises when the burner is off.


  • Tighten the pulley screws.
  • Replace the blower mounts.
  • Install a new drive belt.
  • Loosen and tighten belt tension as needed.
  • Contact a service professional for help.

  • Problem: Heater won't turn on.


  • The blower door may be misaligned or open - check the door to be sure it's closed and adjust if necessary.
  • The temperature might be set incorrectly - be sure it's on AUTOMATIC.
  • The power may be out - examine plugs, circuit breakers, and fuses for potential problems. Reset the circuit breaker if necessary.

  • Problem: The unit makes a clicking sound, but doesn't heat the home.


  • Check to see if the thermostat is on; flip the switch if it isn't.
  • Check the blower door to be sure it's properly closed.
  • Check that the gas supply line shows that the gas is ON.
  • Check that the pilot light is on. Call the gas company if it's not.
  • Be sure all registers and dampers are open.

  • Problem: The fan keeps running, even though the house is already warm.


  • Check the thermostat. If it's set to FAN, return it to AUTOMATIC.
  • Check the filter. If it's dirty, replace it.

  • Problem: The whole house isn't warm enough.


  • Check to make sure all of the registers are open.
  • Clean dirty registers, using a vacuum cleaner.
  • Check that dampers are open.
  • Change the filter, if necessary.
  • Never close the vents all the way.

  • Problem: The thermostat switches on and off on its own.


  • Turn the thermostat up a few degrees. Reset a programmed thermostat.
  • Check the batteries and change if needed.
  • Check the circuit breaker; they may be tripped. Reset if necessary.
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