Investigating a potential class action lawsuit against Lennox for use of inferior parts in its evaporator coil systems that cause its air conditioning units to either freeze up or stop blowing cold air within about one year of use.  It is alleged that Lennox uses copper whereas competitors use full aluminum in the coils.  In is further alleged that Lennox attempts to cost cut by using a thin copper which contributes to the premature failure.  If you have a Lennox air conditioner and experienced these issues, please submit your information below.