Amp Nerd https://validator.w3.org/feed/docs/rss2.html Blog A Whole-House Humidifier Should Not Run Without the Blower A Whole-House Fan With the Windows Shut Can Backdraft a Flue A Bath Fan Vented Into the Attic Just Moves the Moisture Problem Winter Reverse on a Ceiling Fan Only Helps If the Ceiling Is High Twisting the Safety Sensor Wires Together Does Not Fix an Opener A Septic Alarm on the Pump Circuit Cannot Warn You It Failed Your Pressure Switch Does Not Set Water Pressure—The Tank Does A Well Pump Control Box Holds the Motor Start Components A Sump Pump That Trips Its GFCI Is Telling You to Replace It A Freezer Tripping a GFCI Is Usually Leaking Current, Not Nuisance Home A Refrigerator on a Shared Kitchen Circuit Is Not Automatically Wrong Induction Efficiency Does Not Mean a Smaller Kitchen Circuit An Over-Range Microwave Is Not a Countertop Appliance Load An Air Switch Carries No Electricity to the Countertop A Dishwasher Cord Is Not Just Any Appliance Cord With a Plug A Blown Dryer Thermal Fuse Is Airflow Evidence, Not a Part Failure A Gas Dryer Still Needs a Circuit—Just Not a Big One Swapping a Dryer Cord Means Moving the Bonding Strap Too A Cooktop and a Wall Oven Are Not One Appliance on One Circuit A Range Circuit Is Sized on Demand, Not on Adding Up Burners A Water Heater Timer Does Not Stop the Tank From Heating Water A Heat Pump Water Heater Takes Heat Out of the Room It Sits In An Electric Tankless Heater Rarely Fits the Old Water Heater Circuit A Water Heater Does Not Share a Circuit With Anything Else An Element Energized in an Empty Tank Fails in Seconds The Red Reset Button Is a High Limit, Not a Circuit Breaker Both Water Heater Elements Do Not Run at the Same Time HACR Is a Marking on Ordinary Breakers, Not a Special Product MCA Sizes the Wire and MOCP Caps the Breaker—They Differ A Dedicated Circuit Is About What Shares It, Not Its Size Indoor Cable Does Not Belong in the Whip at an Outdoor Unit Your Panel Breaker Is Not the Disconnect the Condenser Needs A Condensate Pump Safety Switch Is Not an Optional Accessory A Glowing Ignitor Can Still Be Too Cold to Light the Burner A Flame Sensor Does Not Sense Heat—It Measures a Tiny Current A Limit Switch That Trips Is Reporting Airflow, Not Failing A Flashing Furnace Board Light Is a Message, Not a Verdict An ECM Blower Is Not Just a More Efficient Version of a PSC An Inverter Mini-Split Does Not Cycle On and Off Like an Air Conditioner Steam Off a Heat Pump in Winter Is Defrost, Not a Fire Emergency Heat Is Not the Cold-Weather Setting on a Heat Pump The C-Wire Does Not Power a Thermostat—It Completes the Circuit A Run Capacitor Can Fail Without Bulging or Leaking A Chattering Contactor Is Usually a Control-Voltage Problem A Hard Start Kit Does Not Repair a Failing Compressor Compressor Inrush Is Brief—It Does Not Set Your Breaker Size Outdoor Lighting Trips a GFCI in the Rain for a Reason A Crowded Gang Box Runs Hotter Than the Sum of Its Devices