How washers, dryers, dishwashers, refrigerators and ovens fail, the checks that solve most problems without a service call, and the electrical and gas hazards that make some repairs a technician's job.
- Dishwasher Not Cleaning Well: Spots, Film and Food Left Behind
Dirty dishes after a cycle usually come from a clogged filter or spray arm, loading that blocks the spray, water that is not hot enough, or detergent problems. Check them in order.
- Dishwasher Not Draining: Clear the Filter, Hose and Air Gap
Standing water in the bottom of a dishwasher is usually a clogged filter, a blocked drain hose, a clogged air gap or garbage disposal connection, or a failing drain pump.
- Dryer Not Heating: Electric and Gas Dryer Troubleshooting
A dryer that tumbles but stays cold may have a tripped breaker, a blown thermal fuse from restricted airflow, a failed heating element, or a gas supply or igniter problem.
- Dryer Takes Too Long to Dry: Clean the Vent Before It Becomes a Fire Hazard
Long drying times almost always mean restricted airflow from lint in the filter, the duct or the outside vent. Clearing it saves energy and reduces the risk of a dryer fire.
- Frost Building Up in the Freezer: Causes and How to Fix It
Frost on food and freezer walls usually comes from warm, humid air getting in through a bad door seal or a door left ajar. Frost on the back panel or a warm fridge points to a failed defrost system.
- Ice Maker Not Working: Water, Temperature and Shutoff Arm Checks
Most ice makers stop because the shutoff arm is up, the freezer is not cold enough, the water filter or line is clogged or frozen, or the inlet valve has failed. Work through the checks.
- Microwave Runs But Will Not Heat: Safe Checks and When to Stop
A microwave that lights up and turns but does not heat has usually failed a high-voltage part such as the magnetron, diode or capacitor. What you can safely check, and why the rest is not DIY.
- Oven Not Heating: Electric and Gas Oven Troubleshooting
An oven that will not heat, or heats unevenly, usually has a failed bake element, a weak gas igniter, a tripped breaker, wrong settings or a temperature sensor problem. Safe checks for each.
- Refrigerator Leaking Water: Find the Source and Stop It
Water under or inside a refrigerator usually comes from a clogged defrost drain, a leaking water supply line, a cracked drain pan, or a fridge that is not level. Here is how to tell which.
- Refrigerator Not Cooling: Check These Before Food Spoils
A warm refrigerator is often caused by dirty condenser coils, blocked vents, a bad door seal, wrong settings or a frost-clogged evaporator. Check them in order and protect your food.
- Washing Machine Not Spinning or Draining: What to Check
A washer that leaves clothes soaking wet usually has an unbalanced load, a clogged drain pump filter or hose, a lid or door lock problem, or a worn belt or motor coupling.
- Washing Machine Smells: Get Rid of the Musty Odor and Keep It Away
A musty or sour washer smell comes from mold and residue in the door seal, detergent drawer, drum and drain filter. Clean each, run a cleaning cycle and change the habits that cause it.
Why appliance problems are often simple
Major appliances are built around a handful of systems: water in and out, a motor or compressor, heating elements or burners, and an electronic control that ties them together. When one stops working, the cause is very often something a homeowner can see and fix: a clogged filter, a kinked hose, a lint-packed vent, a tripped breaker, a door seal that no longer seals. Manufacturers design these parts to be serviced by owners, and the owner’s manual for your model usually shows exactly where they are.
Before calling for service, it pays to check three things in every case: power (plug, outlet, breaker or GFCI), water (supply valves, hoses and drains) and airflow (vents, coils and filters). A surprising share of “broken” appliances are healthy machines starved of one of the three.
Maintenance that prevents most failures
- Dishwashers: clean the filter regularly and load correctly. ENERGY STAR advises scraping rather than rinsing dishes and running full loads.
- Washers: leave front-loader doors open after use so the seal can dry, which ENERGY STAR notes helps prevent mold and mildew.
- Dryers: clean the lint filter before or after every load and the vent duct at least yearly. Fire safety officials report that failure to clean is the leading factor in home dryer fires.
- Refrigerators: keep the fresh-food compartment cold enough (ENERGY STAR recommends 35 to 38°F, and USDA food safety guidance says 40°F or below protects most foods), keep door seals airtight and keep condenser coils clean.
Where the job belongs to a technician
Appliances combine water with 120- or 240-volt power, and gas ranges and dryers add a fuel supply. Internal electrical repairs, anything involving sealed refrigerant systems, gas connections and microwave internals carry real risks. Microwave ovens in particular contain high-voltage components that can hold a dangerous charge even when unplugged, and should only be opened by qualified technicians. Gas appliances that are poorly adjusted or maintained are among the sources of carbon monoxide the EPA lists for homes, so a gas smell or a CO alarm always means stop and call.
Model numbers matter
Every appliance has a label with the model and serial number, usually inside the door, on the frame or on the back. Write it down before you start. Parts, error codes and repair steps vary by model, and the manufacturer’s manual and parts diagrams for that exact model are the most reliable references.
How our appliance guides work
Each guide starts with what you can check in minutes, then explains how the appliance works so the symptom makes sense, and walks through the repairs a careful homeowner can do with the power off and the water shut off. Every guide marks the point where you should stop and call a technician.