When to Replace vs. Repair
Home Appliances

Your washing machine just stopped mid-cycle. The refrigerator is making a grinding noise. The dishwasher isn't draining. Now comes the question every homeowner dreads: do I pay to fix this, or do I buy a new one?

There's a simple framework that makes this decision much easier — and it works for almost every appliance in your home.

The 50% Rule (The Most Useful Guideline You'll Learn Today)

Consumer appliance experts and home economists consistently recommend this rule:

The math: if a new washing machine costs $700 and a repair is quoted at $400, that's 57% of replacement cost. If the washer is 8 years old (halfway through its 15-year lifespan), the numbers say replace. If the washer is only 3 years old, repair it — you're only 20% through its life.

Average Appliance Lifespans

Appliance-by-Appliance Decision Guide

Refrigerator

Refrigerators are expensive to buy ($800–$3,000+) so the 50% rule gives more repair leeway than smaller appliances. Common repairs like a faulty ice maker ($150–$300), bad door seal ($50–$200), or failed start relay ($30–$100 DIY) are almost always worth doing — even on older units.

Replace when: The compressor fails (repair is $500–$1,000+ and often exceeds replacement value on units over 10 years old). Also replace if the cooling system requires refrigerant recharging — this indicates a leak that will recur.

Washing Machine

Front-loaders cost more to repair than top-loaders due to complexity. Common repairs worth doing: door latch ($100–$200), pump ($200–$350), lid switch ($150–$250). Control boards ($300–$500) push into replace territory on units over 8 years old.

Replace when: The bearing fails on a front-loader (repair often exceeds the machine's value), the drum is cracked, or the unit has had multiple failures in the past few years.

Dishwasher

Dishwashers have a shorter lifespan than most appliances. Budget for replacement after 9–10 years. Simple repairs — door latch, float switch, spray arm — are worth doing at any age. Control board failure ($200–$350) on a 7-year-old machine is borderline.

Replace when: The tub is cracked, water is consistently pooling on the floor, or the motor is failing. New dishwashers are substantially more energy-efficient, making replacement more economically attractive.

HVAC System

This is where the stakes are highest. A new HVAC system runs $5,000–$12,000 installed, so repairs can be justified for longer. The key exception: refrigerant (R-22/Freon). Systems that still use R-22 refrigerant should be replaced — R-22 was phased out and costs $100–$175 per pound. A system that needs multiple pounds is not worth repairing.

Replace when: The compressor fails on a unit over 10 years old (compressor is $1,200–$2,500 installed, and if the unit is old, other components will follow). Also replace when energy bills are climbing despite maintenance — efficiency gains from modern units often pay for themselves within 5–7 years.

Water Heater

Tank water heaters over 10 years old should almost always be replaced rather than repaired. The tank itself is the lifespan-limiting component, and most repairs (thermostat, heating element, pressure relief valve) cost $150–$400 — workable at age 3–5, questionable at age 8+.

Replace when: You see rust-colored water, the tank is leaking (not the connections — the tank itself), or the unit is over 10 years old and having any kind of failure.

Oven/Range

Gas ranges are extremely long-lived and usually worth repairing at almost any age. Common repairs — igniter, control valve, bake element — run $100–$300 and are worth it even on older units. Electric ranges similarly: bake element, broil element, temperature sensor are all inexpensive repairs.

Replace when: The control board fails on an older unit (can be $400–$700), the range surface is cracked, or you want to upgrade from electric to induction for cooking performance.

Three More Factors Beyond the 50% Rule

1. Parts Availability

Some appliances have parts that become unavailable after 7–10 years. If a technician can't source the part — or can only find it used online — consider that a signal to replace. Proprietary smart appliances from smaller brands are particularly susceptible to this.

2. Energy Efficiency

Appliances manufactured 10+ years ago are dramatically less efficient than current models. A 2010 refrigerator may use 40–50% more electricity than a current ENERGY STAR model. Run the math: if you're spending $100/year extra on electricity, that's $1,000 over 10 years — real money that offsets replacement cost.

3. Pattern of Failures

If an appliance has needed repairs twice in the past two years, that's a pattern — not bad luck. Multiple failures indicate systemic degradation. Budget for replacement and start shopping before the next failure catches you off-guard (and forces a rushed, expensive decision).

Quick Reference: Repair or Replace?

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