In Mesa, near East Glade Avenue and South Somerset performing Fall preventative maintenance on an Amana furnace. Cycled system on into heating mode. Checked gas line and flue piping; both sealed and proper. Removed and cleaned flame sensor, then re-installed. Checked all safeties, back pressure safety switch shutting down properly. Limit switches are all testing proper. Burners and igniter are working proper. Changed return air filter and checked splits. System is running within manufacturer specifications at this time.
