Skip to main content
Error code reference
Norcold Refrigerator Error Code A4
AC mode selected but AC power is not available; fault external to refrigerator controls.
SourceNorcold Refrigerator - Service Manual: 900 & 9100 Seriesp. 7, 13, 16
Diagnostic procedure
The full A4 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 vehicle AC fuse or circuit breaker; replace fuse if blown or reset circuit breaker if tripped.
SourceNorcold Refrigerator - Service Manual: 900 & 9100 Seriesp. 7, 13, 16
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock A4 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