Per homeowners description of the conditions the house is warm and blowing warm air and ice is freezing at the evaporator coil freon line. Suction line pressure is running at 43. Equipment is 30 plus years old, original to the house, and has developed leaks in a unknown locations. R22 equipment is obsolete and no repairs are available. Recharge only at today's visit Water flush condenser coil Supply temperature at closest floor register 56 Due to the orientation of the service ports on the line set, leak stop injections could not be attached to the equipment. Recommend replacement of the full system