The 16-point Heating Safety Inspection covers checking the following items - Disassemble unit and clean flame sensor, exhaust orifice and pressure switch. Thermostat, air filters, high limit and pressure safety switch, burners, gas valves. flame sensor and ignitor, exhaust motor, blower motor, wiring, code compliance, duct, inspection, drain pan, smoke detectors/carbon monoxide, temperature difference, check outdoor unit(heat pump). Discount cannot be applied toward service call fee or combined with any other offer. Must present coupon at time of service. Contact us for complete details. - Metro Air Conditioning Heating & Services Limited Time Offer*