The nameplate: model 700BFI, built February 2000
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Case Study · Sub-Zero Freezer Repair · Woodinville, WA
Sub-Zero freezer repair in Woodinville: a 26-year-old freezer, rebuilt.
This Sub-Zero freezer repair in Woodinville started with a common call: a Sub-Zero 700BFI integrated freezer, built into custom kitchen cabinetry, had stopped cooling. Its nameplate dates it to February 2000. We found a refrigerant leak at the heat exchanger and moisture in the compressor. The homeowner was getting ready to sell the house and wanted it done right, so over two visits we rebuilt the whole sealed system with a new compressor and a new evaporator. Real photos from the job below.
- Location: Woodinville, WA
- Sub-Zero 700BFI integrated freezer, built February 2000
- Symptom: not cooling
- Cause: heat exchanger leak & moisture in the compressor
- Repair: full sealed system rebuild — new compressor & evaporator, 2 visits
- Diagnosed & repaired by Max, EPA Section 608 certified
Licensed & Insured
1-Year Warranty
Owner-Operated
What happened
From not cooling to a rebuilt sealed system
The complaint
This Sub-Zero 700BFI is a fully integrated freezer hidden behind cabinetry-matched drawer fronts, with an ice maker in the upper compartment. It had stopped cooling. The nameplate dates it to February 2000, and it runs on R134a refrigerant. The homeowner was preparing to sell the house.
The diagnosis
We hooked refrigeration gauges up to read the sealed system directly, then pulled the machine compartment out from under the cabinetry to reach the compressor and condenser. The sealed system was leaking refrigerant at the heat exchanger, and moisture had gotten into the compressor. The homeowner wanted a full rebuild rather than a patch before the house went on the market.
The fix
On the second visit we installed all-new, genuine Sub-Zero parts: compressor, evaporator coil, and filter-drier. We brazed them into the sealed system, reconnected the defrost and control wiring, recharged with R134a, then reinstalled the ice maker and drawers. It has run properly since, with no callbacks, and the work carries a 1-year warranty.
Real photos
This job, start to finish
Gauges on to read the sealed system
Drawers off, machine tray pulled out
The leak: the corroded heat exchanger under the unit
New compressor and filter-drier on the machine tray
New evaporator in, wiring reconnected
Evaporator in place before the panels go back
Ice maker reinstalled in the upper compartment
Why choose us
Why Woodinville homeowners call Ace Appliance Service for Sub-Zero freezer repair
Repair vs. replace, honestly weighed
Sub-Zero built-in refrigeration can last 20–35+ years, far longer than a standard freezer. On a built-in that fits its cabinetry, a sealed system rebuild is often worth weighing against replacement — see our repair-or-replace guide.
Certified for sealed system work
Opening refrigerant lines, brazing, and recharging requires EPA certification. Max is EPA Section 608 Type I certified, the certification that covers household refrigerators and freezers.
Genuine Sub-Zero parts, 1-year warranty
WA Contractor #ACEAPAS774K6. This rebuild used only genuine Sub-Zero parts, and like every repair we do, it's backed by a full year on parts and labor.
Questions
Sub-Zero freezer repair in Woodinville: FAQ
Is it worth repairing a 20+ year old Sub-Zero freezer?
Often, yes. Sub-Zero built-in refrigeration can last 20–35+ years, and replacing a panel-matched built-in can mean new cabinetry work too. This 26-year-old freezer got a new compressor and evaporator instead. See our repair-or-replace guide for how to weigh it.
Should I repair a Sub-Zero before selling my house?
It's worth considering. This Woodinville homeowner chose a full sealed system rebuild before listing the house, so the built-in freezer was working properly and covered by our 1-year warranty rather than a known problem left for the buyer.
How much does a Sub-Zero compressor replacement cost?
It depends on the model and what else in the sealed system needs work. We diagnose the exact cause on-site first, then give a clear price before any repair begins.
Do you do sealed system repair on Sub-Zero freezers?
Yes. This job replaced both the compressor and the evaporator on a Sub-Zero 700BFI. Sealed system work requires EPA certification, and Max is EPA Section 608 certified.
Do you do Sub-Zero freezer repair in Woodinville?
Yes — this case study is a Sub-Zero freezer repair in a Woodinville home. We serve King and Snohomish County, including Woodinville, Bothell, Kirkland, Redmond, and the surrounding area.
Are you licensed and insured?
Yes, Ace Appliance Service LLC is licensed and insured to work in Washington State. WA contractor license #ACEAPAS774K6.
Common Sub-Zero freezer problems
Sub-Zero freezer not cooling at all?
It can come from several places: a failed compressor start relay or overload (like our yacht freezer case study), a fan or defrost problem, or the sealed system itself — this Woodinville freezer had a refrigerant leak at the heat exchanger and moisture in the compressor. We test before recommending a repair.
How do you tell a compressor problem from a simpler electrical part?
We read the sealed system with refrigeration gauges and test the compressor and its start components electrically. A failed relay is a small repair; a sealed system problem like this one means replacing major components.
Ready when you are
Sub-Zero freezer not cooling? Let's find out why.
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