Sub-Zero Appliance Repair Services
We repair Sub-Zero ovens, dishwashers, cooktops & more — factory-trained, local techs.
Volt & Vector Appliance Repair
Professional appliance company based in Downtown Brooklyn. Serving Brooklyn & Manhattan.
Into
Sub-Zero appliances are designed for performance and reliability, but they still face recurring faults. This troubleshooting guide covers Sub-Zero error codes, failures, and repair strategies.
Into
Reminder: Always Use the Model Number to Find Appliance Parts
Why the model number matters
How to avoid mistakes
The challenge with part numbers
Universal rule
Error Codes
Common Sub-Zero codes include:
EC 06 – Thermistor fault (refrigerator)
EC 20 – Defrost heater fault
EC 30 – Ice maker error
EC 40 – Evaporator fan fault
EC 50 – Compressor start relay error
EC 60 – Control board communication error
EC 70 – Condenser fan fault
EC 80 – High temperature alarm
EC 85 – Low temperature alarm
EC 90 – Door ajar alarm
EC 91 – Ice maker fill valve error
EC 92 – Water filter error
EC 93 – Freezer thermistor short
EC 94 – Freezer thermistor open
EC 95 – Refrigerator thermistor open
EC 96 – Refrigerator thermistor short
EC 97 – Defrost sensor error
EC 98 – Sealed system low pressure
EC 99 – High pressure cutout
EC 100 – Inverter compressor error
EC 101 – Board firmware error
EC 102 – Door switch not detected
EC 103 – Ice harvest error
Technical Details
Sub-Zero integrates high-end electronics with mechanics. Refrigerators use inverter compressors and thermistors, ovens use igniters and relays, washers employ pressure switches, and dryers depend on heaters and fuses.
Quick Fixes
DIY for Sub-Zero:
- Dishwasher → clean filter, reset
- Refrigerator → clean coils, replace filter
- Oven → reset breaker, inspect igniter
- Washer → balance load, clean drain
- Dryer → clear vent, check thermal fuse
Repair vs Replace
Repairing Sub-Zero is usually more economical. Replacing pumps, igniters, fans, or sensors restores function at a fraction of replacement cost, extending lifespan significantly.