The optical module temperature is too high or the air exhaust port is blocked. The manual's first action is: “The operating environment temperature is too high, or the air exhaust port may be blocked. Use the projector in an appropriate operating environment temperature¹. Or remove any objects that are blocking the air exhaust port.”
- Model
- Panasonic PT-DZ21K2 PT-DS20K2 PT-DW17K2 PT-DZ16K2
- Display shows
- Optical module temperature warning (U12)
- Type
- Error code
- Source
- Manual p. 190
What U12 means
Optical module temperature warning p. 190
What to do
- The operating environment temperature is too high, or the air exhaust port may be blocked. Use the projector in an appropriate operating environment temperature¹. Or remove any objects that are blocking the air exhaust port. p. 190
If U12 is still not resolved
The manual gives no further instruction for this code. Open the code table in the PDF or contact Panasonic service.
This page summarises what the manufacturer’s manual says about U12; 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.