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DIY DIARIES

HOW TO INCREASE FURNACE AND A/C EFFICIENCY AND LIFESPAN

Air filter stuck in blower Dirty blower motor Blocked condenser coil Thermostat Ducts in unconditioned garage Previous Next Increasing your current HVAC systems’ efficiency and lifespan go hand in hand. By increasing your efficiency, you are inadvertently increasing its’ lifespan too. Sound good? In this article, we will get into some of the things that

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NEW FURNACE OVERHEATING

Under-sized supply duct furnace N type evaporator coil with drip pan N type evaporator coil drip pan removed Trane furnace gas valve data decal Electronic zone damper Previous Next You finally installed a brand new furnace and air conditioning system in your home and got rid of that old, energy-sucking system, congrats! Unfortunately, since it

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FURNACE SHORT CYCLING

Several blocked air filters Blocked blower motor cooling plate Blocked evaporator coil Blocked off register Furnace high limit switch Crack in a heat exchanger Blocked secondary heat exchanger Inducer motor Rodent blocking the furnace air intake Previous Next What is short cycling Short cycling is a term used to describe a furnace or heating appliance

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WHAT CAUSES A BLOWER MOTOR TO GO BAD?

Blocked air filter Blocked motor cooling plate Clogged/dirty blower wheel Weak capacitor Shorted control board Previous Next There are numerous reasons why a blower motor may fail. The first one that comes to mind is quite obvious and that would be age. Lets face it, not too many things get better with age, and blower

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HOW TO TEST AN ECM BLOWER MOTOR.

ECM blower motor Diagram indicating power inputs to ECM motor Diagram on how to test an ECM motor for 120 volts ECM motor harness receivers Previous Next Ecm motors or “Electronically Communicated Motors” are all the rave with customers looking to maximize efficiency. They are, however, a little more difficult to diagnose. In this article,

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HOW TO TELL IF A HIGH LIMIT SWITCH IS BAD

Furnace high limit switch Testing a high limit switch removed from furnace by holding a lighter under the disk Previous Next A high-limit switch is one of the most important safety devices in your furnace. It basically keeps your furnace from catching fire and burning down your home! A high-limit switch works by shutting down

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Frozen a/c evaporator coil

Blocked air filter Leaking furnace Previous Next If you have lost airflow and your thermostat temperature is going up instead of down, you have a problem! After the loss of airflow and temperature not dropping, the next suspect to a frozen evaporator coil would be water around the bottom of the furnace. This is due

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Air Filters

Air filter High limit with built-in rollout transistor Close-up view of a crack in a furnace heat exchanger Previous Next Dirty air filters are far and wide the number one reason for furnace and air filter problems. Unfortunately, a lot of people don’t think about changing them until something happens to cause them to have

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