Home appliance FAQ: straight answers for homeowners
35 sourced answers to common homeowner questions about refrigerators, washers, dryers, dishwashers, ranges, appliance safety, and repair costs. Each answer stands on its own, and factual numbers link to the government agency, manufacturer, or study they come from.
Refrigerators, freezers, and ice makers
What temperature should a refrigerator and freezer be set to?
The FDA recommends keeping the refrigerator at or below 40°F (4°C) and the freezer at 0°F (-18°C). ENERGY STAR suggests 35 to 38°F for the fresh-food section, which keeps food safe without wasting energy. Use an appliance thermometer to check, because dial numbers are not temperatures.
How long will food stay safe in the refrigerator during a power outage?
A closed refrigerator keeps food safe for up to about 4 hours without power. A full freezer holds a safe temperature for about 48 hours, or about 24 hours if it is half full, as long as the door stays closed. Discard perishable refrigerated food such as meat, dairy, and leftovers after 4 hours without power.
Why is my refrigerator running but not cooling?
The most common homeowner-fixable causes are dirty condenser coils, blocked vents inside the cabinet, a door that is not sealing, or a temperature control set too warm. If the freezer is cold but the fresh-food section is warm, an evaporator fan or defrost problem is likely and usually needs a technician. A compressor that runs constantly while nothing gets cold can point to a sealed-system fault.
How often should I clean refrigerator condenser coils?
Check your owner's manual for the recommended interval, since some newer models have coils that need little or no cleaning. For refrigerators with accessible coils, many homeowners clean them once or twice a year, and more often with pets. ENERGY STAR notes that keeping coils clean and leaving a few inches of air space behind the refrigerator helps it run efficiently.
How often should I replace my refrigerator water filter?
Whirlpool and GE Appliances both recommend replacing the refrigerator water filter about every 6 months, or when the filter indicator comes on. Replace it sooner if water flow slows, ice production drops, or your water has a lot of sediment. After installing a new filter, run water through the dispenser to flush air out of the line.
Why is my ice maker not making ice?
Start with the simple checks: make sure the ice maker is switched on, the water supply valve is open and the line is not kinked, and the water filter is not clogged or badly seated. Whirlpool recommends a freezer temperature between 0 and 5°F for ice production, and GE notes the ice maker mold must reach about 16°F before a cycle starts. A newly installed ice maker can take up to 24 hours to make its first ice.
Is it worth keeping an old second refrigerator in the garage?
Often not. ENERGY STAR says refrigerators more than 15 years old could be costing about $95 a year to run, and an old refrigerator uses about 20% more energy on average than a new certified model. If you need a second refrigerator year-round, a new ENERGY STAR model costs less to operate.
How long does a refrigerator last?
The NAHB/Bank of America Home Equity study estimated an average first-owner life of about 13 years for standard refrigerators and 9 years for compact refrigerators. ENERGY STAR uses a 12-year lifetime in its savings estimates. Actual life depends heavily on use, maintenance, and model.
Washers and dryers
Why does my front-load washer smell?
Front-load washers seal tightly, so leftover moisture, detergent, and fabric softener residue can grow odor-causing microbes in the door seal, drum, and dispenser. The fixes are to run the manufacturer's cleaning cycle monthly, wipe the door seal, remove wet laundry promptly, use only the recommended amount of HE detergent, and leave the door and dispenser drawer open between loads. Whirlpool recommends its Clean Washer cycle at least monthly or every 30 washes.
Can I use bleach to clean my washing machine?
It depends on the brand, so check your manual. Whirlpool allows 1 cup of liquid chlorine bleach in its Clean Washer cycle as an alternative to an affresh tablet, but warns that more bleach can damage the washer over time. LG says to use an oxygen-based drum cleaner on its Tub Clean cycle, because chlorine bleach or acidic cleaners can discolor or corrode the inside of the machine.
Do I really need HE detergent?
Yes, if your washer is a high-efficiency model (all front-loaders and most newer top-loaders). Whirlpool specifies HE detergent only, because regular detergent or too much detergent creates excess suds that can cause leaks, draining problems, and poor rinsing. Overdosing also leaves residue that leads to odors.
Are front-load washers more efficient than top-load washers?
Generally, yes. ENERGY STAR says certified front-load washers use about 50% less energy and water than top-load agitator washers, and about 25% less than top-load impeller models. ENERGY STAR certified full-size washers use about 14 gallons of water per load versus about 20 gallons for a standard machine.
Does washing in cold water really save energy?
Yes. ENERGY STAR says heating water accounts for about 90% of the energy a clothes washer uses, and switching from hot to warm can cut energy use in half. Cold water cleans most loads well; hot water is still useful for oily stains or when someone in the household is sick.
What does an error code on my washer mean?
Error codes point to the system the washer thinks has a problem, such as water supply, draining, the door lock, or a sensor. The exact meaning depends on the brand and model, so look up the code in your owner's manual or on the manufacturer's support site using your model number. Many drain and fill codes are caused by simple things like a clogged pump filter or a closed water valve.
How often should I clean my dryer vent?
NFPA advises cleaning lint out of the dryer vent pipe at least once a year, or more often if clothes are taking longer than normal to dry. Clean the lint screen before or after every load. NFPA data show that failure to clean was the leading factor in home dryer fires.
Why is my dryer taking so long to dry clothes?
The most common cause is restricted airflow from a clogged lint screen, a lint-packed vent, or a crushed transition duct behind the dryer. Overloading and very wet loads (from a washer that is not spinning fully) also add time. If airflow is good and the dryer still runs cool, a heating element, gas igniter, or thermostat may have failed.
Is foil or plastic dryer duct safe?
NFPA recommends rigid or flexible metal venting to keep air flowing. White vinyl and thin foil accordion duct can sag, trap lint, and be crushed behind the dryer, so replace it with metal duct.
Dishwashers
Should I rinse dishes before putting them in the dishwasher?
No. ENERGY STAR advises scraping food off instead of rinsing, because pre-rinsing adds water and energy use and today's dishwashers and detergents are designed to do the cleaning. If dishes will sit overnight, use the dishwasher's rinse feature, which uses a fraction of the water of hand rinsing.
Does a dishwasher use less water than washing dishes by hand?
Yes. ENERGY STAR says a new certified dishwasher uses less than half as much energy as washing by hand and saves about 8,400 gallons of water a year. A standard-size certified dishwasher costs about $50 a year to run.
Why is there standing water in the bottom of my dishwasher?
The most common causes are a clogged filter, a blockage where the dishwasher drains into the garbage disposal or sink drain, a kinked drain hose, or a clogged air gap. A new disposal with its knockout plug still in place will also block draining. A failed drain pump is less common and usually needs a replacement part.
How often should I clean the dishwasher filter?
Many newer dishwashers use a manual-clean filter that should be removed and rinsed regularly, often monthly, and more often for heavy use; your manual gives the exact interval. A clogged filter is one of the most common reasons dishes come out dirty or water stays in the tub.
How long does a dishwasher last?
The NAHB/Bank of America Home Equity study estimated an average first-owner life of about 9 years for dishwashers, one of the shorter lifespans among major appliances. Hard water, skipped filter cleaning, and heavy use can shorten that.
Ranges, ovens, and cooktops
Is induction more efficient than gas or electric?
Yes. ENERGY STAR estimates induction cooktops transfer about 85% of their energy to the food, compared with about 75 to 80% for electric resistance and about 32% for gas. The U.S. Department of Energy describes induction as up to three times more efficient than gas and up to 10% more efficient than a conventional smooth-top electric range.
How do I know if my pans work on induction?
Hold a magnet to the bottom of the pan. The Department of Energy says any pot or pan with a flat bottom that a magnet sticks to will work on an induction cooktop. Cast iron and most magnetic stainless steel work; plain aluminum, copper, and glass do not unless they have a magnetic base.
Do gas stoves need a range hood?
EPA lists gas stoves as an indoor source of nitrogen dioxide and recommends installing and using an exhaust fan vented to the outdoors over gas stoves. A recirculating hood filters grease but returns air to the kitchen, so a ducted hood is the better choice where possible.
Can I use my gas oven to heat my house?
No. The Consumer Product Safety Commission says never to use gas ranges, ovens, or clothes dryers to heat a home, because fuel-burning appliances can produce carbon monoxide. CPSC also warns against lining the bottom of a gas oven with aluminum foil, which blocks combustion air and can produce CO.
What is an anti-tip bracket and do I need one?
An anti-tip bracket anchors a freestanding or slide-in range so it cannot tip forward if someone leans or stands on the open oven door. CPSC notes anti-tip brackets have been required since 1991 and that many range tip-over victims were young children. Install the bracket that came with the range and re-engage it any time the range is pulled out.
How can I check if my oven temperature is accurate?
Place an oven thermometer in the center of the oven, preheat to a set temperature such as 350°F, and read it after the oven has cycled for 15 to 20 minutes. Ovens cycle on and off, so readings swing a little; a consistent offset can often be corrected with the calibration setting described in your manual. USDA notes appliance thermometers are the way to know actual temperatures.
What should I do if a pan catches fire on the stove?
Turn off the burner and slide a lid or baking sheet over the pan to smother the flames, and leave it covered until it cools. Never pour water on a grease fire. The U.S. Fire Administration says unattended equipment is the leading factor in home cooking fires, so stay in the kitchen while frying, boiling, or broiling.
Repair, replacement, and buying
Should I repair or replace a broken appliance?
A common rule of thumb is to replace when the appliance is near the end of its expected life or the repair would cost about half the price of a comparable new model. Also weigh the type of failure: a door gasket or igniter is a routine repair, while a refrigerator sealed-system leak often tips the decision toward replacement. Efficiency gains from a new ENERGY STAR model can help justify replacing an old appliance.
How much does appliance repair cost?
National cost guides put most appliance repairs in the low hundreds of dollars. HomeGuide lists a typical range of $100 to $400 with a $70 to $130 service call, and Angi puts the average refrigerator repair at about $275. Prices vary a lot by region, part, and brand, so get a written estimate after diagnosis.
What is a service call or diagnostic fee?
It is the charge for a technician to come to your home and diagnose the problem, whether or not you go ahead with the repair. HomeGuide puts typical service call fees at $70 to $130, usually covering travel, diagnosis, and the first hour of labor. Many companies credit the fee toward the repair if you approve the work, so ask before booking.
How long do major appliances last?
The NAHB/Bank of America Home Equity study estimated average first-owner lifespans of about 15 years for gas ranges, 13 for electric ranges, refrigerators, and dryers, 11 for freezers, 10 for washers, and 9 for dishwashers and microwaves. Those are averages from a 2007 study, so treat them as a rough guide rather than a guarantee.
Where do I find my appliance model number?
Look for a rating label or sticker: inside the door frame or on an interior side wall of refrigerators, on the edge of the door or tub opening of dishwashers, under the lid or on the door frame of washers and dryers, and on the frame behind the storage drawer or oven door of ranges. The model number is what you need to look up error codes, manuals, and the right parts.
What does the ENERGY STAR label mean?
It means the model meets efficiency criteria set by the U.S. Environmental Protection Agency that go beyond the federal minimum standard. For example, ENERGY STAR certified refrigerators are about 9% more efficient than models that just meet the federal minimum, and certified clothes washers use about 20% less energy and 30% less water than regular washers.
All sources
- FDA: Are You Storing Food Safely?
- ENERGY STAR: Refrigerators
- USDA FSIS: Appliance Thermometers
- FoodSafety.gov: Food Safety During Power Outage
- Whirlpool: Ice Maker Not Working - Troubleshooting
- GE Appliances: Refrigerator - Icemaker Not Producing Ice
- GE Appliances: Refrigerator - New Icemaker Not Producing Ice
- NAHB / Bank of America Home Equity: Study of Life Expectancy of Home Components (2007)
- Whirlpool: Removing Odors from the Interior of a Washer
- LG: Troubleshooting Musty Odors (washers)
- ENERGY STAR: Clothes Washers
- Whirlpool: Error Codes in Front Load Washers
- NFPA: Clothes Dryer Safety tip sheet
- NFPA: Home Fires Involving Clothes Dryers and Washing Machines
- ENERGY STAR: Dishwashers
- ENERGY STAR: Residential Induction Cooking Tops (Emerging Technology Award)
- U.S. Department of Energy: Making the Switch to Induction Stoves or Cooktops
- EPA: Nitrogen Dioxide's Impact on Indoor Air Quality
- CPSC: Carbon Monoxide Fact Sheet
- CPSC: Free Standing Kitchen Ranges (tip-over)
- U.S. Fire Administration: Cooking Fire Safety
- HomeGuide: How Much Does Appliance Repair Cost? (2026)
- Angi: How Much Does Refrigerator Repair Cost? (2026 data)