Performed Platinum Comfort Club Membership Tune-Up on Heating System preformed heating maintenance set gas pressures to 3.25 temprise 58 co 0 50ppm all parameters met manufacturing requirements found humidistat to be failed, is receiving power but does not light up and is corroded on the back of the board. quoted replacement of the humidistat, also need to return with humidifier pad. *** did upgrade customer to cozy plus customer did say his mother will pay the invoice. outdoor coil is extremely dirty, cleaning Included with maintenance check, upgraded customer from Cozy to cozy plus to include a return visit for the AC check