Canon NP7161/NP7160 Error E821

Copier · taken from the manufacturer’s manual, pages cited

Error codeE821

The ozone filter or cleaner thermistor (TH3) or DC controller PCB is malfunctioning, leading to an error related to air purification or sensor failure. The manual's first action is: “Replace the ozone filter. Is the problem corrected?”

Model
Canon NP7161/NP7160
Display shows
E821
Type
Error code
Source
Manual p. 281

What E821 means

Ozone filter p. 281

Common causes

What to do

  1. Replace the ozone filter. Is the problem corrected? p. 281
  2. Turn on the power switch, and select service mode 111 (clean thermistor detection temperature). Do the reading remain as '111'? p. 281
  3. Replace the DC controller PCB. p. 281

If E821 is still not resolved

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

Open the manual at page 281 All NP7161/NP7160 error codes Manual details & download

This page summarises what the manufacturer’s manual says about E821; 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 Canon. Found a mistake? Report an error.