Some of the problems I encounter!! https://www.justtcb.com/apps/photos/ Some of the problems I encounter!! DIRTY EVAPORATOR COIL THIS COIL HAS A GENERAL APPEARANCE OF BEING CLEAN, BUT IS ACTUALLY COATED WITH A FINE DRYWALL DUST BECAUSE OF CONSTRUCTION GOING ON WHEN THE AIR WAS RUNNING. THIS CAUSES THE SYSTEM TO RUN HARDER AND LONGER AND ULTIMATELY A SERVICE CALL. https://www.justtcb.com/apps/photos/photo?photoID=176892355 176892355 SHORTED DISCONNECT BOX SOMETIMES THIS IS CAUSED BY LOOSE CONNECTIONS AT LUGS IN DISCONNECT BOX. https://www.justtcb.com/apps/photos/photo?photoID=176892356 176892356 SHORTED DISCONNECT BOX WITH COVER REMOVED https://www.justtcb.com/apps/photos/photo?photoID=176892357 176892357 CORRODED WIRES TO HEATER ELEMENTS THIS WAS AT A RESIDENTIAL PACKAGE UNIT https://www.justtcb.com/apps/photos/photo?photoID=176892358 176892358 BLOWN CAPACITOR THIS WAS AT A RESIDENTIAL PACKAGE UNIT WHICH CAUSED AN ELECTRICAL SMELL IN THE HOUSE. https://www.justtcb.com/apps/photos/photo?photoID=176892359 176892359 DIRTY COIL ONCE THIS GROWTH STARTS, IT BECOMES LAYERS OF MOLD AND DEBRIS. CAN BE AVOIDED BY AT LEAST ANNUAL INSPECTIONS, CLEAN FILTERS AND/OR A UV LIGHT IF NEEDED. https://www.justtcb.com/apps/photos/photo?photoID=176892360 176892360 CLEAN COIL THIS IS THE COIL AFTER I HAVE CLEANED THE EVAPORATOR COIL IN PLACE AT A RESIDENCE https://www.justtcb.com/apps/photos/photo?photoID=176892361 176892361 UNINSULATED SUPPLY BOOT UNINSULATED BOOTS CAUSE WATER STAINS ON THE CEILING AT SUPPLY GRILLS. RESOLUTION: PROPERLY INSULATE ALL EXPOSED METAL ON BOOT. https://www.justtcb.com/apps/photos/photo?photoID=176892362 176892362 EXTERIOR SHUT-OFF CONNECTION MOISTURE PENETRATION HAS CAUSED A SHORT INSIDE BOX, WHICH CONTINUED TO TRIP THE BREAKER UNTIL I REPLACED IT. https://www.justtcb.com/apps/photos/photo?photoID=176892363 176892363 DAMAGED MODULE AT BLOWER WHEEL MODULES GO BAD ON BLOWER WHEELS, WHICH MUST BE REPLACED. https://www.justtcb.com/apps/photos/photo?photoID=176892364 176892364