Quick Fixes For Forced Air Heater Problems

Heaters offer a low installation cost, rapid heat delivery, and dependability making forced warm-air heater systems a popular heating choice among home owners. The heater is also very versatile and provides itself to the central air conditioning system. The heater works by using its blower to pull cold air form the within the rooms of your home into the cold-air return and return duct. The heater then passes that cold air through the heater filter and into the heater furnace. There the air is heated. It then flows back to the rooms through the warm-air ducts and registers.

For maximum efficiency, you should clean the heater system and inspect the burner and thermostat throughout the colder months. If a problem with the heater dose presents itself, here are some possible causes and solutions.

Problem Possible Cause Solutions
No Heat No power Check circuit breaker or fuse.
  Defective thermostat Clean or replace heater thermostat.
Insufficient Heat Clogged filter Clean or replace heater filter.
  Leaking air ducts Use duct tape to seal leaks.
  Blower operating too slowly Adjust the heater blower speed.
  A lose blower motor Tighten the heater motor belt.
Blower not Operating Broken motor belt Replace heaters motor belt.
  Fan control too high Adjust heater fan control.
  Defective heater motor Repair or replace motor*
Loud Heater Insufficient lubrication Put oil in cups, if present in blower.
  Loose or damaged blower belt Tighten or replace motor belt.
Blower Cycles too Rapidly Fan control too low Change heater fan control.
  Blower running too quickly Change heater blower speed.
  Faulty fan and limit control Replace fan and limit control.*
Room Temp Surpass Thermostat Setting Thermostat incorrectly placed Move thermostat.*
  Thermostat incorrectly installed Install thermostat correctly.
Room Temp dose not Reach Thermostat Setting Thermostat incorrectly placed Move thermostat.*
  Thermostat incorrectly installed Install heater thermostat correctly.
  Clogged  or dirty heater filter Clean or replace heater filter.
  Blower working too slow Change blower speed.
  Fan control too low Change fan control.
  Thermostat incorrectly calibrated Recalibrate heater thermostat.*

Forced Air Heater

*Should be performed by a professional.