Written by
Elena Vasquez Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeFOOD PROBE (PT3)
ApplianceBlast Chiller
The core 3 probe has failed
When FOOD PROBE (PT3) comes up on the display, the failed part is insert probe core 3. Nothing further is listed in the manual beyond calling service.
Models with this alarm
Controller
Touch screen
Models
UCBF559, UCBF659, UCBF632, UCBF432 and UCBF532
Generation
Current
Neighbouring alarms
The probe alarms are numbered by core. Core 2 has its own message, FOOD PROBE (PT2), and core 4 has FOOD PROBE (PT4). A different measurement altogether is covered by LOW TEMPERATURE, which concerns cabinet air in the holding cycle.
Blast chiller service around San Francisco
For a PT3 alarm in San Francisco or elsewhere in the Bay Area, phone (415) 329-7078. The model number and the exact wording on the screen help us most. You can also read about U-Line freezer repair before you call.
Model compatibility: U-Line reuses codes across series and model years, so FOOD PROBE (PT3) may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Insert probe core 3 failure. Call service.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your U-Line appliance?
Book a specialist visit for a clear estimate and approval before any repair.
Frozen food gives you little time. See how U-Line freezers, refrigerator/freezer combinations and commercial blast chillers are diagnosed, and what to do…
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your U-Line appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
