KYKY FD series Error OH: Over-heat protection with controller

Molecular pump controller · taken from the manufacturer’s manual, pages cited

Fault codeOH

Over-heat protection with controller means the controller has detected excessive heat conditions. The manual lists no action for this code.

Model
KYKY FD series
Display shows
Over-heat protection with controller (OH)
Type
Fault code
Source
Manual p. 41

What OH means

Over-heat protection with controller p. 41

If OH is still not resolved

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

Open the manual at page 41 All FD series error codes Manual details & download

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