Skip to main content
Error code reference
Sub-Zero Freezer Error Code 30
Excessive icemaker water valve solenoid activation (exceeded 15 seconds, 5 consecutive times every 24 hours).
SourceSub-Zero 600-3 Series Freezer - Full Service Manualp. 3-21
Diagnostic procedure
The full 30 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check for jammed cube in icemaker. Reference wiring diagram to identify components in same White wire circuit as water valve solenoid. Check all White wire electrical connections and continuity from water valve solenoid to J7-8 on control board.
SourceSub-Zero 600-3 Series Freezer - Full Service Manualp. 3-21
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock 30 procedure $9.95
Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.
75,000+ service documents · 20,000+ error codes · 100+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax