Yamatake SDC20/21 Error AL91: Loader communication message is not correct.

Digital indicating controller · taken from the manufacturer’s manual, pages cited

Alarm codeAL91

Loader communication message is not correct. The manual's first action is: “Check cable connection.”

Model
Yamatake SDC20/21
Display shows
Loader communication message is not correct. (AL91)
Type
Alarm code
Source
Manual p. 73

What AL91 means

Loader communication message is not correct. p. 73

Common causes

  • Loader communication message is not correct. p. 73

What to do

  1. Check cable connection. p. 73

Before you service the product, read the safety instructions in the manual p. 33.

If AL91 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Yamatake service.

Open the manual at page 73 All SDC20/21 error codes Manual details & download

This page summarises what the manufacturer’s manual says about AL91; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Yamatake. Found a mistake? Report an error.