We have experience in fixing a homeowner’s “fixes” that do not quite hit the mark. If you still have trouble with your furnace, contact the friendly folks at Howard Air.
While your thermostat may be at fault, only an HVAC technician can diagnose and remedy the issue correctly. In 1902 Willis Carrier invented the modern air conditioner, so you can be assured that Carrier knows their HVAC units. If the fan does not start, you have a wiring issue (circuit breaker trips) or motor problem (circuit breaker does not trip). If you see or hear the fan turn on, your blower motor is not the culprit. Used 3 Ton Air Handler Unit CARRIER Model FK4DNF002 ACC-8917. Start by turning the furnace off, turn your thermostat to “fan only,” and wait a few minutes. You tried all these possible solutions and still have no air blowing? Now put your furnace’s blower fan to the test. CARRIER Used Central Air Conditioner Air Handler FA4BNF060 ACC-9444 1,271.00 356.00 (You save 915.00) SKU: ACC-9444 Condition: Used Weight: 250.00 LBS Availability: Clean & Ready To Perform Current Stock. Inspect the heat exchanger for cracks, which can cause a safety hazard.
A neglected, dirty air filter can cause the heating and air conditioning system to struggle to keep you comfortable. Comfort: Knowing how often to change air filters can affect your comfort. Any yellow, red or orange indicates dust and dirt buildup on the burner. According to the Department of Energy, replacing a dirty, clogged filter can increase your system’s efficiency by 5 15. Check the furnace flame for a complete blue color. If you have cool air but a steady airflow, your blower motor is working but your heat exchanger or burner is not. A furnace blower motor that stops pushing warm air out is not the same as a blower that is forcing only cold air into your home. If after trying those three steps you still are not warm, you need to feel the difference between cool airflow and no airflow. A clogged filter can drop airflow so much that your home’s ductwork shakes or your furnace overheats without sending the heat into your home. It should be cleaned or replaced monthly during the heating season. If set too low, you may be cold but your furnace thinks everyone is cozy at 50 degrees.