18 month saga of recurring issues with SEARS technicans inability to install/configure Carrier variable speed HVAC. The unit from Carrier itself may be a great product but SEARS has frustrated the family with inept, incapable, inefficient, unqualified technical capability. SEARS salesman sold a unit that did not solve the problem SEARS reported to us - that the earlier unit that they replaced was inefficient. We are still having problems today ! 9/25/2009 This was a US$ 14K unit - something we hd to borrow money to pay for! List of... read full review »