Functional Test

^ Insufficient heating. Refer to Heating and Ventilation System (W/Out A/C). [1][2]Functional Test - Heater - Without A/C
^ Insufficient cooling. Refer to "Insufficient Cooling Check." [1][2]Insufficient Cooling
^ Improper air delivery. Refer to "Improper Air Delivery." Improper Air Delivery or No Mode Change
^ Blower motor inoperative or incorrect speed.