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Error code · Undercounter & Drawers

Sub-Zero UC-24 Undercounter EE with “Service” Flashing: temperature sensor problem

On Sub-Zero legacy UC-24 undercounter models like the UC-24CI and UC-24R, EE on the display together with a flashing Service light means a temperature sensor is not working. The position tells you which one: EE on…

Medium · inspection needed
Code
EE + Service flashing
Appliance
Undercounter & Drawers
Brand
Sub-Zero
Warranty
30-day workmanship

What EE + Service flashing means

On Sub-Zero legacy UC-24 undercounter models like the UC-24CI and UC-24R, EE on the display together with a flashing Service light means a temperature sensor is not working. The position tells you which one: EE on the left points to the freezer compartment thermistor, EE on the right to the refrigerator compartment thermistor. Owners see the EE and Service, and the affected compartment may drift in temperature.

Common causes of EE + Service flashing

  • A freezer compartment thermistor that is not reading (EE on the left)
  • A refrigerator compartment thermistor that is not reading (EE on the right)
  • Damaged sensor wiring or connectors
  • A control input problem
✓ One safe check you can try

1. Note whether EE is on the left or right of the display. 2. Keep doors closed to protect the contents. 3. Try one breaker reset. 4. If EE and Service return, call us and tell us which side shows EE. 5. Check contents of the affected compartment for warming.

! Why to stop there
  • Thermistors sit behind interior covers
  • Testing requires a meter and expected values
  • The wrong sensor replaced will not clear the code
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
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Other Undercounter & Drawers codes

EE + Service flashingEE + Service flashing questions
Which side matters?

EE on the left points to the freezer compartment thermistor; EE on the right points to the refrigerator compartment thermistor. Telling us which side speeds up the repair.

Will the unit keep cooling?

Often it keeps cooling but without accurate control in the affected compartment. Check food and drink temperatures until it is fixed. Move sensitive items if needed.

How is EE fixed?

We test the indicated thermistor and its wiring, then replace or repair as needed. A written price comes first, and our workmanship carries a 30-day warranty.

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Still seeing EE + Service flashing?

A technician diagnoses it on site and gives you the price in writing before any work starts.

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