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Error Code

U-Line Blast Chiller AIR PROBE (S1) Error Code

Request U-Line Service (310) 879-5776
Clara Bennett Written by Clara Bennett Appliance Care Editor Published September 3, 2026 Updated October 20, 2026

Content status: Verified

Error code AIR PROBE (S1)
Appliance Blast Chiller
Quick answer

AIR PROBE (S1) is an air probe failure alarm on U-Line touch screen blast chillers. The manual says to call service.

Model compatibility: U-Line reuses codes across series and model years, so AIR PROBE (S1) 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

Air probe failure; call service.

What AIR PROBE (S1) means

AIR PROBE (S1) is the alarm for a failed air probe. The manual gives one instruction for it: call service.

When an alarm occurs, an Alert icon blinks on the screen and the buzzer sounds. Touch the Alarm icon to open the alarm message and see the details.

Models covered

The alarm is listed for the UCBF432, UCBF532, UCBF632, UCBF559 and UCBF659 blast chillers with the touch screen controller.

Other probe alarms

U-Line blast chiller service in Los Angeles

If AIR PROBE (S1) is on the screen of your U-Line blast chiller in Los Angeles, call (310) 879-5776 or open our refrigeration service options. Have the alarm name, the model number and anything you already tried ready for the call.

Source: U-Line Blast Chiller User Guide & Service Manual, Pub. 30379 Rev. P 11/2022 (Alarm/Failure List); U-Line Blast Chiller User Guide – Touch Screen Manual (alarm list), Rev 08/04/2015

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.

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Service area Los Angeles & Orange County

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