A furnace blower motor capacitor is the small component that maintains a constant supply of air to your furnace. If you did not have one of these little buggers, you’d probably end up with a burned-out blower motor in a couple of months time. There is only so much air that your blower can move at one time and if it’s not getting enough air it will eventually get tired and start to quit running. This could be a serious problem when your home’s electric bill starts to rise because your blower is actually costing you more money in the long run. It could also cause damage to the blower in the case of a fire.
A new blower motor will last longer and cost less money to maintain than an older model. The manufacturer of your furnace should sell a blower capacitor for each blower that they sell. If you buy them separately, they can be very expensive. They are also very easy to replace.
If you start to see that your blower motor is getting too old to run effectively, it may be time to look into purchasing a new one. Buying a blower capacitor for your blower will cost less than a new blower motor and it will save you money on repairs in the future. You might want to think about buying two blower capacitors if you have several blowers or more than one blower. You never know when something might fail and you never know when something might break.