---
title: Troubleshooting Ascaso Baby T not heating / showing rEL on PID display
description: Process for troubleshooting Ascaso Baby T not heating on startup / showing rEL on PID display
---

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# Troubleshooting Ascaso Baby T not heating / showing rEL on PID display

## Process for troubleshooting Ascaso Baby T not heating on startup / showing rEL on PID display

**Issue:** Machine Not Heating or functioning upon start (seeing rEL on left display)

**Common Cause:** Machine stuck in non-power mode (possibly from end user holding S/L and hitting start switch)

**Resolution: **  
**\*\* Perform the non-heat mode start-up procedure again (or a factory reset if there have not been any changes to the default programming ) \*\***

1\) Turn power off with main power switch

2\) Hold buttons S/L

3\) While holding all 3 buttons, turn the power switch on

**\*\*you'll see Prt show on the screen\*\***

4\) Once you see Prt, release all 3 keys

5\) Once all 3 keys are released, turn machine off with main power switch

6\) You are now factory reset, turn power switch back on normally

**\*\* Factory reset is same as above, except Step #2 you hold S/L/XL \*\*" **

| ![](https://support.ascaso-usa.com/hs-fs/hubfs/undefined-Feb-10-2026-08-35-15-0773-PM.png?width=362&height=483&name=undefined-Feb-10-2026-08-35-15-0773-PM.png) |
| --- |

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