Common Central Air Conditioning Problems & Troubleshooting

Common Central Air Conditioning Problems & Solutions Condenser unit doesn’t turn on Condenser unit doesn’t turn off Air conditioner does not cool Condenser unit noisy Air conditioner turns on and off frequently Frost on evaporator coils Water leaking inside furnace Condenser unit doesn’t turn on Possible cause Procedure No power …

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Common Heat Pump Problems & Troubleshooting

Common Heat Pump Problems & Solutions Heat pump doesn’t run at all Heat pump runs but doesn’t heat or cool Heat pump cools but doesn’t heat Heat pump heats but doesn’t cool Heat pump fan doesn’t run Heat pump doesn’t defrost automatically; ice buildup on coils Auxillary light on indoor …

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Common Electric Furnace Problems & Troubleshooting

Common Electric Furnace Problems and Solutions No heat Intermittent or insufficient heat No heat Possible Cause Procedure Circuit breaker tripped or fuse blown Replace fuse or reset breaker Wires broken or terminal connectors loose or faulty Inspect furnace wiring and install new connectors if necessaryTighten wire connections Wires burned (look …

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Common Gas Burner Problems & Troubleshooting

Common Gas Burner Problems and Solutions No Heat Insufficient heat Excessive fuel consumption Pilot does not light or does not stay lit Pilot lights but burner does not ignite Pilot flame flickers Exploding sound when burner ignites Burner takes more than a few seconds to ignite Burner flame uneven Burner …

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Common Oil Furnace Problems & Troubleshooting

Common Oil Burner Problems and Solutions No heat or insufficient heat Intermittent heat High fuel consumption Burner system noisy Diesel fuel odor from burner system Electrical insulation odor from burner system No heat or insufficient heat Possible Cause Procedure No fuel Check fuel tank gauge and have tank refilled if …

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Radiator Not Getting Hot

Common Water Distribution Problems and Solutions No heat No heat, motor housing hot Gurgling sound in pipes or radiator Burner does not turn of Heat uneven throughout the house Radiator is cold, hammering noise in pipes Not enough heat, convector is lukewarm Not enough heat, radiators are lukewarm (water pressure …

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HVAC Air Flow Problems

Common Air Distribution Problems and Solutions Heating or central air conditioning does not work at all System runs but no hot or cold air flow Heating or cooling insufficient in part of the house Heating or cooling insufficient throughout entire house Air flow noisy Blower noise excessive Blower belt slips …

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