What Tools Do I Need for Appliance Repair?

Every new tech wants to know what to buy. The internet will happily sell you a $2,000 toolkit you don't need yet. Forums will argue about socket brands until you're collecting social security.

Here's the reality: you can handle 90% of residential service calls with about $500 in tools. Start with these. Add specialty tools as specific jobs demand them. Don't buy things you haven't needed yet.

The Non-Negotiable Tools

These go in your bag on day one. Without any of these, you're going to struggle on calls.

Multimeter

Already covered this in detail (/learn/how-to-use-a-multimeter), but it bears repeating: a multimeter is the single most important diagnostic tool you own. Get a Fluke 117 ($150-180) or equivalent auto-ranging meter. A non-contact voltage tester (the pen-style ones, ~$25) is a good complement for quick "is this wire hot?" checks.

Nut Driver Set

You'll use nut drivers more than any other hand tool. A set of 1/4" and 5/16" nut drivers covers the majority of sheet metal screws on residential appliances. Add a 3/8" for some commercial units. Get a full set if you can — 3/16" through 1/2". The 1/4" hex head screws holding panels together are absolutely everywhere.

Some techs prefer a nut driver bit set with a ratcheting handle. Either works. What matters is having the right sizes in your hand when you need them, not back in the van.

Phillips and Flathead Screwdrivers

A #2 Phillips handles about 80% of screws you'll encounter. Bring a #1 for smaller electronics screws and a #3 for the occasional large one. A medium flathead handles most slotted screws plus works as a prying tool for retaining clips and snap-fit panels.

Consider getting a multi-bit screwdriver with interchangeable tips. Less to carry, and modern ones are sturdy enough for daily use.

Pliers and Cutters

Needle-nose pliers — for grabbing wires, pulling connectors, and reaching into tight spaces. Get a pair with a built-in wire cutter near the pivot.

Channel-lock (tongue-and-groove) pliers — for gripping larger items, hose clamps, and fittings. A 10" pair is the most versatile size.

Wire strippers/cutters — for any wiring repair. Self-adjusting strippers are worth the extra $10.

Adjustable Wrench

A 10" adjustable wrench handles most water line connections, gas fittings (if you're licensed for gas), and the random bolt that doesn't match any of your sockets. Some techs carry a small 6" and a large 12" for different situations.

Flashlight or Headlamp

You will work in dark places. Behind machines, under cabinets, inside service panels. A decent rechargeable headlamp (~$25-40) keeps your hands free. Carry a backup flashlight too. When the headlamp battery dies at 4pm on a Friday inside someone's utility closet, you'll be glad you have a backup.

Work Towel and Drop Cloth

Not tools in the traditional sense, but bring them on every call. A towel goes on the customer's floor or countertop before you set anything down. A small drop cloth protects the area around the appliance. Customers notice this. It's the difference between "that tech was professional" and "he scratched my floor."

The "Week Two" Tools

You probably won't need these on your first few calls, but you'll need them within the first month.

Socket Set

A basic metric and SAE socket set with a 1/4" drive ratchet covers most bolt-based fasteners inside appliances. 8mm, 10mm, 12mm (metric) and 3/8", 7/16", 1/2" (SAE) are the sizes you'll reach for most. Get a set with both deep and shallow sockets — deep sockets reach bolts on threaded studs.

Putty Knife

For popping retaining clips on Whirlpool-style front panels, releasing snap-fit covers, and scraping old gasket material. A stiff 1.5" putty knife is one of those tools you'll use constantly once you have it.

Torpedo Level

For leveling washers and fridges. A washing machine that's not level will vibrate, walk across the floor, and throw error codes. Takes 30 seconds to check and saves a callback.

Appliance Dolly or Hand Truck

You'll need to move heavy appliances. A purpose-built appliance hand truck with straps runs about $100-150 and saves your back. Don't try to muscle a 300-pound fridge out from the wall by yourself.

Inspection Mirror

The telescoping kind with a light. For seeing behind appliances, checking connections underneath units, and reading model numbers in impossible locations. $10 and worth ten times that.

Specialty Tools You'll Add Over Time

Don't buy these until you need them. When the job calls for it, add it to the collection.

Refrigerant gauges and recovery equipment — only if you're doing sealed system work (requires EPA 608 certification).

Thermometer (infrared) — for verifying temperatures on fridges, freezers, ovens, and dryers. Useful but not essential on day one. A $25 IR thermometer from any tool supplier works fine.

Watt meter / Kill-A-Watt — for checking power consumption on appliances that seem to be running but not performing. Helpful for diagnosing compressor issues and heating element degradation.

T20 and T25 Torx drivers — Samsung and LG use Torx screws on a lot of components. When you encounter one, buy the bit. You'll keep using it.

Spring removal tool — for washer suspension springs. Some techs make their own from bent rod stock. Others buy purpose-built ones. You don't need it until you're doing a washer suspension or tub bearing job, and then you really need it.

Hose clamp pliers — for spring-style hose clamps on washers and dishwashers. Regular pliers work in a pinch, but the purpose-built ones save your hands and your patience.

What to Keep in the Van vs. What to Carry In

Load your van with everything. Carry a smaller bag into the house with just the essentials for the specific call type.

For a fridge call: Multimeter, nut drivers, Phillips screwdriver, flashlight, thermometer.

For a washer/dryer call: Multimeter, nut drivers, Phillips and flathead, pliers, level, socket set.

For a range/oven call: Multimeter, nut drivers, Phillips, flathead, non-contact voltage tester. If it's gas, add your adjustable wrench and leak detector.

For a dishwasher call: Multimeter, nut drivers, Phillips, flathead, towel (it's going to leak when you pull it out), pliers.

You'll develop your own system after a few weeks. The point is: don't haul your entire tool collection into every kitchen. Carry what you need, walk back to the van if you need something specific.

The Tool Nobody Talks About: Information

Every tool in your bag helps you take the appliance apart. But diagnosing the problem — knowing what's wrong and what to replace — requires information. The service manual, wiring diagram, and tech sheet for the specific model you're working on.

You can carry a filing cabinet of printed manuals, or you can pull them up on your phone in five seconds. Built by a team with 25+ years in the appliance parts industry, MyPros+ lets you pull up service documents across 55+ brands from any device. Type in the model number, get the service manual, wiring diagram, and tech sheet immediately.

When a tech has the right information on the call, the diagnosis is faster, the repair is right the first time, and the customer doesn't get a callback.

Try MyPros+ free — 7 days, no commitment →