Dirty Air Handler Blower Fan

It could be a bad relay control board run capacitor or the blower motor itself.

Dirty air handler blower fan.

Having a dirty blower wheel will make your hvac system work harder and if not addressed eventually cause your ac system to stop working. The next most common problem that can occur with an air handler is a failure of a blower motor whether it be the blower motor or something else that causes the blower motor to fail. Possible cause dirty air conditioner blower the most common root problem underlying a frozen air conditioner is a dirty air conditioner blower that s clogged and congested with dust and dirt. Check for a dirty air handler blower fan.

A dirty blower wheel will also contribute to a high electric bill. Similar to a clogged filter dirt on the blades of the air handler fan will decrease cold airflow over the heat exchangers resulting in the same blower on blower off pattern. It s important to note that weak airflow can also result from dirty or leaky ducts or a clogged filter. On the other hand if your motor is reaching the end of its service life you should start looking for a replacement motor.

So if your air handler looks like the one below try wiping the blades carefully with a dry towel or toothbrush. This common problem can lead to higher energy costs and expensive repairs. Damage caused by a dirty blower can be costly to fix but can be prevented too. A dirty air filter is the 1 reason for hvac system failure.

This happens most often in old units that have not been receiving proper maintenance. If you notice your gas furnace is short cycling turning on and off frequently the culprit may be a dirty blower wheel. Luckily this is one of the easiest problems to repair. Dirty a c or heat pump blower units dirt blocked air conditioner air handler fans we also discuss how to improve indoor air quality by installing a cascaded air filter system at the air conditioning or heating system air handler to provide optimal air particle filtration for people with asthma allergies or indoor mold or other iaq concerns.

When these air exchanges can not happen successfully because a dirty blower wheel is impairing air flow your system will fail. That a dirty blower fan reduces the blower assembly air flow rate increasing heating and cooling costs and sometimes leading to actual system operating failures such as frost build up on air conditioner coils that forms not just frost but solid ice if the air flow rate across even a clean cooling coil is just too slow.