Model reference
Sub Zero 400
Refrigerator
3 documents44 error codes21 service modes
Available documentation
Service Manual
- Service Manual 400139 pg
Installation Guide
- Installation and Operating Instructions14 pg
Quick Reference
- Condensed Electronic Control Information Booklet126 pg
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Error codes (44)
CodeMeaning
05Upper cabinet thermistor read open or shorted for 10+ seconds, or repeatedly…06Upper evaporator thermistor read open or shorted for 10+ seconds, or repeatedly…07Lower cabinet thermistor read open or shorted for 10+ seconds, or repeatedly…08Lower evaporator thermistor read open or shorted for 10+ seconds, or repeatedly…10Upper cabinet warm temperature alarm.11Upper cabinet cold temperature alarm.12Lower cabinet warm temperature alarm.13Lower cabinet cold temperature alarm.15Sealed system fault34Capacitive sensor values read by the Main Board are not within the predefined…35Capacitive sensor assembly communication problem with main control board (500 &…41Door opened at cycle start.42Door closed sensing error.50Excessive refrigerator compressor run (427R-2 refrigerator section only).51Drum motor relay error.52Drum motor start sensing error.53Drum motor centrifugal switch error.54Drum motor sensing error.61Heater relay error.63Heater short error.64Heater open error.65Thermostat open.67Thermal/Heater sensing error (Only for Dual Coil).71NTC1 (OPEN) error.72NTC1 (SHORTED) error.73NTC2 (OPEN) error.74NTC2 (SHORTED) error.91User Interface communication problem with main board.92User Interface mother board protocol mismatch.93MCF checksum error.View all 44 error codes
94CCF checksum error.97Missing program on CTF error.9CUser Interface configuration checksum error.9EUser Interface touch sensor not working.F1Ventilation blocked error.F3No Gas Error.F6Safety reset error.H1/B1Power supply frequency out of range.H2/B2Power supply amplitude out of range (too HIGH).H3/B3Power supply amplitude out of range (too LOW).H4/B4Line wiring error.HA/BDLine safe relay short circuit error.HE/BELine safe error.HF/BFLine safe sensing error.
Service modes (21)
- Clearing Error Codes (427R-2 Refrigerator Section)1
- Clearing Error Codes (Wine Storage)1
- Demo Mode["1. Press power and look for console to light up.","2. For Rotary Dial
- Diagnostic Mode["1
- Diagnostic Mode (427R-2 Refrigerator Section)1
- Diagnostic Mode (Wine Storage)1
- Factory Default Reset["1
- Manual Component Activation Mode (427R-2 Refrigerator Section)1
- Manual Entry Model Configuration Mode (427R-2 Refrigerator Section)1
- Manual Valve Activation Mode (Wine Storage)1
- Model Configuration Mode (427R-2 Refrigerator Section)1
- Recall Last Error Code["1
- Sabbath Mode (427R-2 Refrigerator Section)1
- Sabbath Mode (Wine Storage)1
- Showroom Mode (427R-2 Refrigerator Section)1
- Showroom Mode (Wine Storage)1
- Temperature Log Recall Mode (427R-2 Refrigerator Section - Compartment and Evaporator)1
- Temperature Log Recall Mode (427R-2 Refrigerator Section - Compartment Only)1
- Temperature Log Recall Mode (Wine Storage)1
- Temperature Units Selection Mode (427R-2 Refrigerator Section)1
- Temperature Units Selection Mode (Wine Storage)1
Full entry steps, exit procedures, and test sequences are available in Max.
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