Arrived onsite for heating maintenance on gas fired furnace in front the basement. Basement Furnace System: Turn heat on and confirmed operation. Changed 16x25x1 filter provided by customer. Brushed and Wiped down furnance blower cabinet and gas burners. Burners fired and are in good working order. Slight visual impingement detected. Checked electrical. Cleaned and Measured 5 micro amps on the flame sensor. Measured 1.5 amps on the igniter. Measure temperature rise over 100 degrees. Up to 180 degrees on the supply. System designed for 55 degree maximum heat rise. Measured static pressure at .33 which is low. System overheating but safety is not tripping at 165 degrees as designed. Observed water in the floor under the furnace. Appears to be AC coil not properly draining and needs to be replaced.
