clearances if required. Change air cleaner. Change spark plugs. Check transfer switch operation. Check voltage and frequency. Check general condition (vibration, noise, leakage... & clean dryer exhaust. Check gas dryer CO levels and report unsafe conditions. Clean lint screens. Check dryer burners; clean if necessary. Check & clean dryer combustion air intake... chimney base. Check chimney draft. Check heat exchanger integrity. Clean heat exchanger. Check burners; clean. Check & clean combustion air intake. Check & adjust ignition electrodes...

output during its normal annual usage divided by the total electric energy input in watt-hours (W h) during the same period. SEER = BTU W h For example, a 5000 Btu/h air-conditioning... my ducts cleaned? A: Since conditions in every home are different, it is impossible to say how often an air duct cleaning would be beneficial. In the majority of homes, cleaning... and inspection once every three years is adequate. The type of air filter you are using and the frequency of maintenance on your heating and air conditioning equipment can have...