Appliance Leaks: Washer, Dishwasher, Water Heater

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Some of the most common water losses we see don't come from storms or frozen pipes. They come from the appliances you use every day. A washing machine hose bursts. A dishwasher seal fails. A refrigerator ice maker line cracks behind the fridge. A water heater gives out in the garage. These leaks can be sudden or slow, and both kinds can do real damage.

Here's how to prevent appliance leaks and what to do if one happens.

Why Are Washing Machines a Common Source?

Washers use a lot of water under pressure through supply hoses that sit behind the machine, out of sight. Over time, rubber hoses can crack, bulge or burst. Drain hoses can come loose or clog. A machine that walks during spin can pull a hose loose.

Prevention:

• Inspect hoses for bulges, cracks and rust at the fittings
• Consider braided stainless supply hoses, and replace hoses on a regular schedule
• Leave a few inches behind the machine so hoses don't kink
• Turn off supply valves when you'll be away for a long time
• Consider a drain pan under the machine, especially on a second floor
• Don't overload the washer

What About Dishwashers?

Dishwashers can leak from the door seal, the supply line, the drain hose or the pump. Because they're built into cabinets, leaks often show up as warped flooring, soft toe kicks or a musty cabinet.

Prevention:

• Look for water or swelling in front of and beside the dishwasher
• Check the door gasket for cracks
• Use the right detergent. Too many suds can push water out
• Peek under the sink at the supply connection
• Watch for loose or warped flooring nearby

How About Refrigerators and Ice Makers?

Ice makers and water dispensers use a small supply line, often plastic or copper, behind the fridge. When the fridge gets pushed back, that line can kink or crack. Leaks may go unnoticed for weeks.

Prevention:

• Pull the fridge out carefully once in a while and look
• Consider a braided supply line
• Watch for warped flooring or stains near the fridge

Why Do Water Heaters Fail?

Tank water heaters hold a lot of water. Over time, sediment and corrosion can weaken the tank. Valves and connections can leak. When a tank fails, it can empty onto the floor of a garage, closet or attic.

Warning signs:

• Rust on the tank or fittings
• Water in the drain pan
• Rumbling or popping noises
• Rusty-looking hot water
• Moisture around the base

Prevention:

• Follow the manufacturer's maintenance guidance, including flushing if recommended
• Make sure there's a drain pan with a drain line, especially in attics and closets
• Know where the water heater shutoff is
• Have a plumber look at older units

What About Toilets and Sinks?

Supply lines and fill valves are the usual culprits. A running toilet wastes water. A cracked supply line can flood a bathroom. Check under sinks and behind toilets for moisture, and replace old supply lines.

Should I Install Leak Sensors?

Water leak sensors are inexpensive and can alert you to a leak early. Place them near the water heater, washer, dishwasher, fridge and under sinks. Some smart systems can even shut off the water automatically.

What Should I Do If an Appliance Leaks?

1. Shut off the water at the appliance valve or the main.
2. Unplug the appliance if you can safely do so.
3. Take photos of the appliance, the leak and the damage.
4. Mop up what you can.
5. Call a plumber or appliance technician to repair it.
6. Call for a moisture assessment if water reached flooring, walls or cabinets.

Appliance leaks often travel under cabinets and flooring. Read signs of a hidden water leak for what to look for.

Who Can Help?

CMDR Restoration, our mitigation partner (licensed by TDLR, RCO #1801), dries the structure. G3 rebuilds cabinets, flooring and walls. Learn more on our water damage page or call (945) 300-9018.

Frequently Asked Questions

Keep learning: see our Water Damage page, read Category 3 Water Loss Parody: Why We Made It, or read what homeowners say in our customer reviews.