5. What Should I When My Furnace Makes A Loud Booming Noise And Shakes The Floor?

This is called “Delayed Combustion” caused by gas that comes out of the burner. The valve releases gas to burn but the unit is not working well enough to allow the igniter to work properly. Obviously this is a very dangerous situation, and you need to turn off the unit immediately and have it serviced as soon as possible.

6. What Should I Do When My Furnace’s Flame Igniter Doesn’t Work?

Follow the sequence of checks previously mentioned to insure the induced draft motor is spinning properly, and then listen for a short pause and you should hear the release of gas. If that sequence happens than most likely the igniter is not working properly. A bad igniter or no power to the igniter will not let your furnace heat-up. Also, you should visually check the igniter for cracks and/or a carbon buildup. If this is the case then you need a new igniter properly installed for your furnace.

7. What Should I Do If My Furnace Turns On But No Air Is Blowing Through The House?

First you should check the furnace filter to make sure it’s not clogged or restricting air flow in any way. Also your motor belt should be in place, and it should have proper tension too work correctly. If you have a direct draft blower then flip the power off and the wheel should spin freely and not be overheating. If this is the case than the motor is bad and needs to be replaced.

8. How Often Do I Need To Change My Furnace Filter?

Depending on the quality of the filter you use a change is due every 30 – 90 days; worst case is every change of season. Always make sure the filter is placed in the unit the correct way so air flow may freely enter the unit and be properly filtered. The arrow on the side of the filter should be pointed inwards towards the furnace, and you want to ensure that you are installing the proper filter for your particular unit. Also, dirty filters can cause serious damage to your unit. They are very inexpensive are there’s no reason NOT to replace it on a regular basis to avoid very costly repairs down the road.

9. What Should I Do When I See A Light Flashing Inside My Furnace?

Most furnaces today have an LED diagnostics read-out located inside the unit. The LED code will trouble-shoot the furnace, and it’s located inside of the upper or lower panel of your furnace. This display interprets any potential problems with the system, and when you see a light flashing inside this is an indication that you are in need of immediate repair of some kind. Call The Air King, Inc., we service all of the Tri-county Michigan area cities like Detroit, Birmingham MI and Royal Oak MI.