Panasonic FP0H Error E20: Watchdog timeout

Panasonic FP0H · taken from the manufacturer’s manual, pages cited

Error codeE20

The watchdog timer is activated and the operation stops due to a hardware error or operation congestion. The manual's first action is: “Check if an endless loop occurs by a control instruction which changes the flow of the process of a program (such as JP and LOOP). If there is no problem in the program, there may be an error in the hardware.”

Model
Panasonic FP0H
Display shows
Watchdog timeout (E20)
Type
Error code
Source
Manual p. 205

What E20 means

Watchdog timeout p. 205

Common causes

  • The watchdog timer is activated and the operation stops. A hardware error or operation congestion occurs. p. 205

Safety warnings — read before you start

  • WARNINGWARNING. Incorrect operation may lead to death or serious injury. p. 2
  • CAUTIONCAUTION. Incorrect operation may lead to injury or material loss. p. 2

What to do

  1. Check if an endless loop occurs by a control instruction which changes the flow of the process of a program (such as JP and LOOP). If there is no problem in the program, there may be an error in the hardware. p. 205

If E20 is still not resolved

  • Contact your service dealer for assistance. p. 205
    “Check if an endless loop occurs by a control instruction which changes the flow of the process of a program (such as JP and LOOP). If there is no problem in the program, there may be an error in the hardware.”
Open the manual at page 205 All FP0H error codes Manual details & download

This page summarises what the manufacturer’s manual says about E20; 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 Panasonic. Found a mistake? Report an error.