Questions & Answers for: black filter central unit

central air filters turn black after about a week I am also experiencing this problem, as well as 2 other people that I found on google, so I am inclined to think tha 3M has changed something in their

...filter it can leak into and blow a motor. As an cv ages a small degree of fine dust gets in no matter the brand, but most are fine for 10-12 years with no service. If you see dust in the air ...

...black insulated hose Turn your System OFF and put the Fan switch at your thermostat in the FAN or ON position. Allow it to run like this for 4 hours minimum. Before turning the system back on, ensure ...

black insulated suction line. it should at least cold to the touch. If not it could be a freon issue. If the line does get cold, have them checkthe filter in the house. If that is ok tell them to turn

...black rubber gasket is missing off the body where the pail goes onto the machine. If that is missing there will be no suction. 2) This is a little more complex but will also lead to the same problem. ...

...filter is back in its proper place. If it is an older model, what you can test is the low voltage lines coming into the unit. Where they go into the unit (usually red or black circular with the two ...

...filter. Could you please tell me where this item is located. 2 possible solutions: 1. Make sure small black hose connected to pressure switch is clear of obstructions by blowing through it 2. Replace ...

...black mold in the back of it; should I be worried; how do i clean it??? Also i need to know the best way to clean the filter? I just moved in to an apt with this unit and i've never dealt with a ...

...BLACK landed on it. If this is true this means that your blower runs in high speed during cooling. Tell me what wire lands on the HEAT H terminal. It is very easy to change the speeds you likely just ...

...was extreme enough excess load that it overheated the brushes and covered everything in black soot. So...if it runs hot i suggest you inspect the bag/filter for holes. best of luck ..it worked for ...