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InspectAPedia ® Home AIR CONDITIONING & HEAT PUMP SYSTEMS A/C - HEAT PUMP CONTROLS & SWITCHES A/C DATA TAGS A/C - HEAT PUMP CRITICAL DEFECTS A/C DIAGNOSTIC FAQs A/C REFRIGERANTS A/C TYPES, ENERGY SOURCE AGE of AIR CONDITIONERS & HEAT PUMPS AIR CLEANER PURIFIER TYPES AIR CONDITIONER BTU CHART AIR CONDITIONER COMPONENT PARTS AIR CONDITIONER TYPES, ENERGY SOURCES AIR CONDITIONER NOT WORKING AIR FILTER EFFICIENCY AIR FILTERS, FIBERGLASS PARTICLES AIR FILTERS for HVAC SYSTEMS AIR FLOW MEASUREMENT CFM AIR HANDLER / BLOWER UNITS DIRTY A/C BLOWERS DAMAGED COOLING COIL DIRTY COOLING COIL DIRTY COIL CLEANING PROCEDURES FROST BUILD-UP on AIR CONDITIONER COILS INCREASING RETURN AIR BLOWER FAN CONTINUOUS OPERATION BLOWER FAN OPERATION & TESTING BLOWER LEAKS, RUST & MOLD ADDING A/C: RETROFIT SIZING ANIMAL ALLERGENS / PET DANDER ANIMAL ENTRY POINTS in buildings ANIMAL ODORS IN buildings APPLIANCE EFFICIENCY RATINGS ASBESTOS IDENTIFICATION IN buildings BACKUP HEAT for HEAT PUMPS BLOWER DOORS & AIR INFILTRATION BLOWER FAN CONTINUOUS OPERATION BLOWER FAN OPERATION & TESTING BOOKSTORE - Air Conditioning "How To" Books CAPACITORS for HARD STARTING MOTORS CAPILLARY TUBES CHINESE DRYWALL HAZARDS CIRCUIT BREAKER SIZE for A/C or HEAT PUMP CLEANING & Legionella BACTERIA CHINESE DRYWALL HAZARDS COMBUSTION GASES & PARTICLE HAZARDS CONDENSATE HANDLING, A/C CONDENSATION or SWEATING PIPES, TANKS COMPRESSOR & CONDENSING COIL, A/C BURNED-OUT COMPRESSOR CAPACITORS for HARD STARTING MOTORS CONDENSING COIL REPAIR REPLACE CONTACTOR RELAY DIAGNOSIS & REPAIR CONTROL CIRCUIT BOARD, A/C CRANKCASE HEATERS ELECTRIC MOTOR DIAGNOSTIC GUIDE FAN, COMPRESSOR/CONDENSER UNIT HARD STARTING COMPRESSOR MOTORS INSPECTION CHECKLIST - OUTDOOR UNIT INSTALLATION ERRORS, COMPRESSORS LEVELING REQUIREMENTS, COMPRESSOR LONG-ON CYCLING AC COMPRESSOR MOTOR OVERLOAD RESET SWITCH NOISES, COMPRESSOR CONDENSER Pressure Controls & Safety Switches PRESSURE READINGS, COMPRESSOR REPLACING A COMPRESSOR SHORT CYCLING AC COMPRESSOR TIGHT or SEIZED AC COMPRESSORS CONDENSATE HANDLING, A/C DRIP TRAY DEFECTS CONDENSATE LEAKS CONDENSATE PUMPS CONDENSATE DRAINS CONDENSATE DRAIN CLEAN & DE-CLOG CONDENSATE TRAY CLEANING CONTROLS & SWITCHES, A/C - HEAT PUMP COOL OFF HEAT Thermostat Switch COOLING CAPACITY, RATED COOLING COIL or EVAPORATOR COIL COOLING LOAD REDUCTION by ROOF VENTS COMBUSTION GASES & PARTICLE HAZARDS CONDENSATE HANDLING, A/C CONDENSATION or SWEATING PIPES, TANKS DATA TAGS on AIR CONDITIONERS DEFINITION of Heating & Cooling Terms DEHUMIDIFICATION PROBLEMS DEW POINT CALCULATION for WALLS DEW POINT TABLE - CONDENSATION POINT GUIDE DIAGNOSE & FIX AIR CONDITIONER / HEAT PUMP DUCT SYSTEM & DUCT DEFECTS AIR FILTERS for HVAC SYSTEMS AIR FLOW IMPROVEMENT, HVAC AIR FLOW MEASUREMENT CFM ALLOY SYSTEMS FLEXDUCT ASBESTOS DUCTS, HVAC ASBESTOS PAPER on DUCTWORK ASBESTOS TRANSITE DUCTWORK BALANCING AIR DUCT FLOW DUCT & AIR HANDLER ODORS DUCT in CONCRETE FLOOR DUCT DAMAGE, MECHANICAL DUCT INSULATION - Asbestos Paper DUCT ROUTING & SUPPORT DUST, HVAC CONTAMINATION STUDY FIBERGLASS DUCT, RIGID CONSTRUCTION FIBERGLASS HVAC DUCTS FIRE DAMPERS in DUCTWORK FLOOD DAMAGE in DUCT WORK GOODMAN GRAY FLEXDUCT INCREASING RETURN AIR LEAKY DUCT CONNECTIONS LOCATION OF REGISTERS & DUCTS MOLD in AIR HANDLERS & DUCT WORK NOISES in DUCT SYSTEM ODORS in AIR HANDLERS & DUCT WORK OWENS CORNING FLEXDUCT OWL FLEXDUCT RETURN AIR REGISTERS & DUCTS SLAB DUCTWORK SOUNDPROOFING for DUCTWORK SUPPLY DUCTS & REGISTERS TRANSITE PIPE AIR DUCTS UNDERSIZED RETURN DUCTS UNSAFE DUCT OPENINGS VIBRATION DAMPENERS WATER & ICE IN DUCT WORK WET CORRODED DUCT WORK ZONE DAMPER CONTROLS DUST, HVAC CONTAMINATION STUDY DUST SAMPLING PROCEDURE EDUCATION, HVAC SCHOOLS ELECTRIC MOTOR DIAGNOSTIC GUIDE ELECTRIC MOTOR OVERLOAD RESET SWITCH ELECTRICAL POWER SWITCH FOR HEAT EVAPORATOR COIL or COOLING COIL EVAPORATIVE COOLING SYSTEMS EXPANSION VALVES, REFRIGERANT FAN, AIR HANDLER BLOWER UNIT FAN AUTO ON Thermostat Switch FAN, COMPRESSOR/CONDENSER UNIT FAN CONVECTOR HEATERS - HYDRONIC COILS FAN LIMIT SWITCH FAN NOISES FURNACES WARM AIR HEATING SYSTEMS GAS EXPOSURE EFFECTS, TOXIC GAS DETECTION INSTRUMENTS GAUGE, REFRIGERATION PRESSURE TEST HEAT LOSS (or GAIN) in buildings HEAT LOSS (or GAIN) INDICATORS HEAT LOSS R U & K VALUE CALCULATION HEAT PUMPS HEATING SMALL LOADS HOUSEWRAP AIR & VAPOR BARRIERS HUMIDITY LEVEL TARGET INDOOR AIR QUALITY IMPROVEMENT GUIDE INSPECTION CHECKLIST - OUTDOOR UNIT INSPECTION LIMITATIONS, A/C SYSTEMS LEED GREEN BUILDING CERTIFICATION LOST COOLING CAPACITY LOW VOLTAGE TRANSFORMER TEST MANUALS & PARTS GUIDES - HVAC MOTOR OVERLOAD RESET SWITCH MOLD in AIR HANDLERS & DUCT WORK MOLD INFORMATION CENTER NOISE AIR CONDITIONER / HEAT PUMP OPERATING COST OPERATING DEFECTS OPERATING TEMPERATURES Air Conditioning System Temperatures Instruments Used to Measure A/C Temperatures Procedures for Making Temperature Measurements PORTABLE ROOM AIR CONDITIONERS PRESSURE READINGS, REFRIGERANT REPAIR GUIDE, AIR CONDITIONERS / HEAT PUMPS REPAIR & DIAGNOSTIC FAQs for A/C REFRIGERANTS & PIPING RETROFIT SIZING for A/C or HEAT PUMPS SEER RATINGS & OTHER DEFINITIONS SPLIT SYSTEM AIR CONDITIONERS & HEAT PUMPS SWAMP COOLERS SYSTEM OPERATION THERMOSTATS, HEATING / COOLING THERMOSTATIC EXPANSION VALVES WATER COOLED AIR CONDITIONERS WINDOW / WALL AIR CONDITIONERS WINDOW / WALL A/C SUPPORTS More Information |
A/C or heat pump operating defect checklist: how to fix an air conditioner or heat pump that is not operating properly: this A/C diagnosis article lists common air conditioning or heat pump operating defects, tells you what to check, and recommends specific air conditioner or heat pump repair guide articles found at this website. Green links show where you are. © Copyright 2013 InspectAPedia.com, All Rights Reserved. Author Daniel Friedman. Air Conditioning System Maintenance & Operating Defect Diagnosis & Repair Guide: defect checklist
Here we list typical, readily observed, air conditioning system operating defects. Use the links at the left side of any of our pages to find more detailed information about these and other air conditioning system defects, as well as diagnostic and repair procedures. In our sketch at left and in more detail at AIR CONDITIONING & HEAT PUMP SYSTEMS, the major components of an air conditioning system are described, sketches and photographs are provided, and common defects for each component are listed along with visual or other clues that may suggest a problem or probable failure of A/C components. Here at OPERATING DEFECTS we take you through the major air conditioning problem symptoms and how to get the air conditioning system working again. At a companion article, LOST COOLING CAPACITY, our focus is on the case in which the air conditioning system seems to be "running" but not enough cool air, or no cool air at all is being delivered to the occupied space. At A/C - HEAT PUMP CONTROLS & SWITCHES we explain the many electrical switches and controls that control an air conditioner or heat pump system. You'll need to check these if your air conditioner won't start.
How to diagnose and fix an air conditioning system that is not workingSince the failure of an air conditioner to turn on, loss of air conditioner cooling capacity, reduced air conditioning output temperatures, loss of cool air supply, or even loss of air flow entirely can be due to a variety of problems with one or more components of an air conditioner or air conditioning system, after reviewing the lost air conditioner cooling diagnosis procedures described in this article, be sure to also review the diagnostic procedures at each of the individual air conditioning diagnosis and repair major topics listed just below. To return to our air conditioning and refrigeration home page go to AIR CONDITIONING & HEAT PUMP SYSTEMS. If your air conditioning or heat pump system has lost its cooling capacity or won't start select one or more of the diagnostic articles listed below.
Frequently Asked Questions (FAQs)... Ask a Question or Search InspectApediaQuestions & answers or comments about air conditioner or heat pump operating problem diagnosis and repair. Ask a Question or Enter Search Terms in the InspectApedia search box just below. Technical Reviewers & ReferencesRelated Topics, found near the top of this page suggest articles closely related to this one.
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