Repair or Replace Your Microwave: The Short Answer
$75-$200 avg repair vs $100-$500 new β’ $59 diagnostic β FREE with repair
What Our Customers Say
"I am so happy with the services provided by TruePro Home Services! I have a very old oven that I truly believed would need to be replaced. But, Yury came on time, diagnosed the issues, and had the parts with him to do the repair the same day. My oven is now in perfect working order. Highly recommend!"
Jill W.
Thousand Oaks
"Our LG Front Loading washer wasn't draining. I contacted Simon the next day. He had the part on his truck and came by within 30 minutes, and had it up and running super fast! Thank you Simon for your punctuality, honesty and great value. See you next time!"
Julia M.
Oxnard
"Wonderful and top notched care! They were able to meet my same day expectation to get a washer and dryer hooked up in a new house. He was attentive, thoughtful and explained it all as well. I would highly recommend their service!"
Aleema B.
Simi Valley
Here is the blunt truth about microwaves: countertop models are almost never worth repairing. A new one costs $100-$300, and the magnetron replacement alone runs $150-$250. Over-the-range (OTR) and built-in microwaves are different β they cost $300-$1,000+ and involve installation labor. The repair-vs-replace decision on a microwave is largely about the mounting type.
Countertop microwaves average 7-9 years. Over-the-range models last 8-10 years. Built-in units from premium brands can hit 12+ years. The magnetron β the part that generates microwaves β is the most expensive component and the most common failure point on aging units.
The 50% Rule
Countertop microwaves cost $100-$300 new. The 50% rule means any repair over $50-$150 is a no-go. OTR models cost $300-$600, pushing the threshold to $150-$300. Built-in units at $500-$1,000+ give more room for repairs.
Real Example
Your countertop microwave's magnetron died. Replacement cost: $200 installed. A new countertop microwave costs $150. The repair costs more than a brand new unit. Replace. Now consider: the same failure on a built-in KitchenAid that cost $800. At $200, that is 25%. Repair it.
Common Repairs & Verdicts
| Repair | Cost |
|---|---|
| Door switch replacement | $50-$125 |
| Magnetron replacement | $150-$250 |
| Turntable motor | $50-$100 |
| Diode replacement | $75-$150 |
| Control panel / touchpad | $100-$250 |
| High voltage capacitor | $75-$150 |
When to Repair vs. Replace
Signs to Repair
It is an over-the-range or built-in unit
OTR and built-in microwaves cost $300-$1,000+ and require installation labor to replace. A $150 repair avoids a $300-$500 installation bill on top of the unit cost.
The problem is the turntable or door switch
Turntable motors ($50-$100) and door switches ($50-$125) are inexpensive fixes on any type of microwave. These repairs take 30-60 minutes.
The unit is under 4 years old
A relatively new microwave with a minor failure is worth repairing. At 4 years, you still have 3-6 years of expected life remaining.
The issue is a blown fuse, not a failed component
A blown thermal fuse costs $50-$75 to replace. The fuse blew for a reason β often a faulty door switch β but both together still run under $150.
Signs to Replace
The magnetron failed on a countertop model
Magnetron replacement costs $150-$250. New countertop microwaves cost $100-$300. The math never works. Buy new and recycle the old unit.
It is a countertop model and any repair exceeds $100
Countertop microwaves are commodity appliances. A new one with a full warranty costs less than most repairs. Do not invest repair dollars in a $150 appliance.
The unit sparks, arcs, or shows burn marks inside
Internal arcing can mean a damaged waveguide cover (cheap fix) or a failing magnetron (expensive). If it is the magnetron on any countertop model, replace the microwave.
The touchpad/control panel is unresponsive
Control panel replacement runs $100-$250. On countertop and basic OTR models, this repair approaches or exceeds the cost of a new unit.
The microwave runs but does not heat food
A microwave that runs without heating has a failed magnetron, diode, or capacitor. These are the most expensive microwave components. On any unit over 5 years old, replacement is usually smarter.
Brand-Specific Advice
Repair in most cases. Built-in premium microwaves cost $800-$2,000+ and require custom installation. A $250 magnetron swap is justified when the alternative is a $2,000+ replacement plus installation. Parts availability is good for these brands.
Repair if the fix is under $150 and the unit is under 5 years old. Over-the-range models cost $300-$600 new plus $100-$200 installation. A $125 door switch or diode repair makes sense. A $200 magnetron on a 7-year-old OTR β probably not.
Do not repair. Countertop microwaves cost $60-$200 new. Any repair beyond reseating a fuse or fixing a turntable is more expensive than buying new. Treat countertop microwaves as disposable appliances.
Energy Efficiency Reality Check
Microwaves are already energy-efficient β they use less energy than a conventional oven for the same heating task. There is no meaningful efficiency difference between a 2015 microwave and a 2024 model. Energy savings do not factor into the microwave repair-vs-replace decision at all.
How TruePro Helps You Decide
TruePro's $59 diagnostic identifies the failed component and gives you a clear repair-vs-replace recommendation. If the microwave is a built-in or OTR unit worth repairing, we handle it. If it is a countertop model that should be replaced, we tell you honestly. No wasted money.
Repair or Replace Microwave β FAQ
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