mypros+
Model reference

Sub-Zero BI-48S/S/TH

Refrigerator

11 documents55 error codes14 service modes

Available documentation

Service Manual

  • Sub-Zero Classic Enhancements (7019016): Serials 4100000 to 4199999 — Service Manual200 pg
    Covers this model
  • Sub-Zero Classic Enhancements (7025630): Serials 4200000 to 4379999 — Service Manual200 pg
    Covers this model
  • Sub-Zero Classic Enhancements (7040317): After Serial 4380000 — Service Manual401 pg
    Covers this model
  • Sub-Zero Classic Enhancements (7040127): Serials 4250000 to 4379999 — Service Manual382 pg
    Covers this model
  • Sub-Zero Classic Enhancements (7019014): Serials 4100000 to 4249999 — Service Manual355 pg
    Covers this model
  • Sub-Zero Original: Prior to Serial 4100000 — Service Manual265 pg
    Covers this model

Parts Manual

  • Sub-Zero Classic Enhancements (7040156): Serials 4300000 to 4379999 — Parts Manual130 pg
    Covers this model
  • Sub-Zero Classic (formerly Built-In) Enhancements (7040318): After Serial 4380000 — Parts Manual125 pg
    Covers this model
  • Sub-Zero Classic Enhancements (7019015): Serials 4100000 to 4299999 — Parts Manual123 pg
    Covers this model
  • Sub-Zero Original: Prior to Serial 4100000 — Parts Manual91 pg
    Covers this model

Pocket Manual

  • Sub-Zero Pocket Manual: Classic Series Electronic Control Pocketbook — Pocket Manual16 pg
    Covers this model
MyPros+ Max

Diagnose your Sub-Zero BI-48S/S/TH.

  • Step-by-step diagnostics from the service manual
  • Test values, resistance specs, and wiring references
  • Verified part numbers when replacement is needed
Start diagnosing

$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax

Error codes (55)

CodeMeaning
10 1 00Refrigerator compartment thermistor open circuit.10 1 01Refrigerator compartment thermistor short/closed.10 1 02Refrigerator compartment thermistor unstable.10 2 00Freezer compartment thermistor open circuit.10 2 01Freezer compartment thermistor short/closed.10 2 02Freezer compartment thermistor unstable.10 F 00Freezer evaporator thermistor open circuit.10 F 01Freezer evaporator thermistor short/closed.10 F 02Freezer evaporator thermistor unstable.10 r 00Refrigerator evaporator thermistor open circuit.10 r 01Refrigerator evaporator thermistor short/closed.10 r 02Refrigerator evaporator thermistor unstable.15 L 01Main lights relay stuck closed; no voltage to lights.20 4 00Defrost heater open circuit.20 4 50Defrost heater open.30 8 30Water valve not opened but water detected passing through flow meter.30 U 30Water valve solenoid energized for more than 35 seconds; icemaker system…35 1 33Refrigerator evaporator fan speed setting too low.35 1 34Refrigerator evaporator fan speed setting too high.35 1 35Refrigerator evaporator fan speed error.35 1 36Refrigerator evaporator fan current too low.35 1 37Refrigerator evaporator fan current too high.35 1 38Refrigerator evaporator fan power output fault.35 1 39Refrigerator DC fan output fault.35 2 33Freezer evaporator fan speed setting too low.35 2 34Freezer evaporator fan speed setting too high.35 2 35Freezer evaporator fan speed error.35 2 36Freezer evaporator fan current too low.35 2 37Freezer evaporator fan current too high.35 2 38Freezer evaporator fan power output fault.
View all 55 error codes
35 2 39Freezer DC fan output fault.40 1 40Refrigerator compressor excessive runtime.40 2 40Freezer compressor excessive runtime.44 H 44Glass door heater output fault.45 A 45Air purifier light burned out.45 L 45Burned out light detected.50 U 90Flow meter framing errors.90 5 70Control bad flash write.90 5 71Control flash initialized.90 5 72Control flash memory bad.90 5 73Invalid log fault checksum.90 5 74Invalid E2 checksum.90 5 75Invalid model E2 checksum.90 5 80No communication between control components.90 5 81Communications time-out.90 5 82Partial communications failure.90 5 83Bad micro communication.90 5 84Micro initialization fault.90 5 85Display failure.95 5 25Diagnostics failure.98 H 98Power brownout detected.98 H 99Power brownout detected.dO OrDoor is left open more than 5 minutes; door ajar alarm is off; audible alarm…H2 LOOver 1 gallon of water dispensed in 15 minutes, or water valve energized 150…LO CControl panel locked; door switch detected as depressed (door closed) but…

Service modes (14)

  • Contrast Adjust Mode1
  • Delayed Dispense Reset Mode (Dispenser models only)1
  • Diagnostic Mode1
  • Fault Code Recall Mode1
  • Manual Component Activation Mode1
  • Manual Freezer Evaporator Defrost1
  • Manual Zone Disable Mode1
  • Model Configuration Mode1
  • Sabbath Mode1
  • Self-Test Mode1
  • Showroom Mode1
  • Temperature Log Recall Mode1
  • Temperature Units Selection Mode1
  • Tone Adjust Mode1. Initiate Contrast Adjust Mode first. 2. While in Contrast Adjust Mode, press the POWER key. 'S'…

Full entry steps, exit procedures, and test sequences are available in Max.

Related Sub-Zero refrigerator models

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