Hamstring & Glutes Strengthening. These are the muscles on the back of the thigh and the buttock muscles. Most people with knee pain have weak glutes, but they are often ignored. Weak glutes increases the forces going through the knee. Along with the quads, knee strengthening exercises for the glutes is one of the best ways to reduce pain.
1 Mechanical failures can cause your air conditioner to freeze up. 2  If there is a kink in your refrigerant lines, a blower fan that is not running or is dinged and out of balance, or a clogged filter dryer, then this too will change the pressures in your system and can make your central air conditioner freeze up., you can figure out why your central air conditioner is icing up. Your air conditioner can freeze up for a variety of reasons, so we will discuss them from the most common to some of the more rare causes of ice up.
A freeze up can also be caused by low refrigerant and improper fan operation. Low refrigerant levels make the coils too cold, and a faulty fan prevents air from moving. Faulty thermostats and drainage problems are often causes of a freeze up.