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Sub-Zero & Wolf·Refrigeratorhigh severity
Sub-Zero & Wolf Error Code EC 38
Compressor issue
Common Causes
- 1Compressor relay failure
- 2Start capacitor issue
- 3Compressor winding fault
Compressor area carries high voltage. Disconnect power before any compressor testing. Capacitors hold charge after power-off — discharge safely before handling.
Step-by-Step Troubleshooting
- 1
Check the compressor start relay — remove and shake; rattling indicates internal failure
- 2
Measure compressor winding resistance across all three pins (C-S, C-R, S-R) — compare to Sub-Zero factory specs
- 3
Test the run capacitor with a capacitance meter — value should be within 10% of rating on label
- 4
Listen for clicking every few minutes — this indicates the compressor is trying to start but failing on overload
- 5
Verify supply voltage at the compressor — Sub-Zero units require stable 115V +/-10%
Pro Diagnostic Tip
Sub-Zero dual-compressor models have independent compressors for each zone. Identify WHICH compressor is faulting — refrigerator or freezer — before ordering parts.
You Might Also Notice
- •Clicking sound every 2-5 minutes
- •One zone warm while other is cold
- •Compressor hot to touch
- •Unit trips circuit breaker
Parts, Cost & Difficulty
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$450–$1200
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
SZ-4200070 Compressor Start Relay4200080 Run CapacitorSZ-4201290 Compressor Assembly (factory-order)
Do You Have the Right Tools?
Refrigerant gauges ($200+), vacuum pump ($250), leak detector ($150), and EPA-certified recovery equipment. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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Safety First — Know the Risks
Refrigerant (R-134a/R-600a) requires EPA certification to handle. Improper discharge is a federal violation and health hazard. Our techs are licensed and insured — let them handle the risk.
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Get Professional Help Now
Error code EC 38 is a high-severity issue that can cause further damage to your refrigerator if left unresolved. A licensed technician can diagnose and fix it the same day.
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Frequently Asked Questions
What does Sub-Zero & Wolf error code EC 38 mean?
Sub-Zero & Wolf error code EC 38 indicates: Compressor issue. This is a high-severity issue affecting your refrigerator.
How do I fix Sub-Zero & Wolf error code EC 38?
Check the compressor start relay — remove and shake; rattling indicates internal failure Then, Measure compressor winding resistance across all three pins (C-S, C-R, S-R) — compare to Sub-Zero factory specs Then, Test the run capacitor with a capacitance meter — value should be within 10% of rating on label There are 2 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my refrigerator has error EC 38?
Besides the error code on the display, common signs include: Clicking sound every 2-5 minutes; One zone warm while other is cold; Compressor hot to touch. If you notice any of these symptoms, check your refrigerator's display panel for error code EC 38.
How much does it cost to fix Sub-Zero & Wolf EC 38?
Repair costs for Sub-Zero & Wolf EC 38 typically range from $450 to $1200 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.