Runco Q-750I User Manual

If an 

errcode ? command returns one of the following values, you have encountered a 

likely system error requiring the attention of a qualified service technician. Try resetting the 
projector by powering it off, allowing it to cool and powering it on again. Refer to Table 6-3 
and contact your dealer if the problem persists. 

The specific code number identifies the source of the error detected, and is particularly 
useful in cases where the projector is far away. For example, the code “7” means that 
Fan 1 has failed.

0

Inlet NTC thermal sensor is over temperature. 

1

Outlet NTC thermal sensor is over temperature. 

2

Red LED thermal sensor is over temperature. 

3

Green LED thermal sensor is over temperature. 

4

Blue LED thermal sensor is over temperature. 

6

Fan failure upon system power-up.

7

Fan 1 failed.

8

Fan 2 failed.

9

Fan 3 failed.

10

Fan 4 failed.

11

Fan 5 failed.

12

Fan 6 failed.

15

DDP3021 communication failure upon system 
power-up. 

19

PCF8575 external GPIO communication failure. 

21

Gennum SP1 communication failure upon system 
power-up. 

22

System hardware I2C communication failure.

23

System software I2C communication failure.

24

EEPROM checksum error. 

25

EDID checksum error.