Max Temp Error

Overview

If the Viki displays a “Max Temp” error, it means the hot end or heated bed is reporting a temperature higher than the maximum limit defined in the firmware. Temperature limits may vary between printer models.

The heated bed is always capped at 150°C, regardless of printer model. For the hot end, the maximum allowable temperature is 245°C on Gigabot 2, while Gigabot 3 supports higher limits; 350°C or 400°C, depending on the firmware build installed. 

If the hot end temperature ever shows a reading above 900°C, this is almost always caused by an open circuit in the thermocouple or thermocouple extension cable, rather than a true over-temperature condition.

Before proceeding, please collect and record the following data: 

• Gigabot serial number
• Photo of the Viki with the error message
• Take a screenshot of the Simplify3D temperature graph when the error occurs
  • Instructions for getting the temperature plot
• .factory file and .gcode of part you were printing
• Did max temp error happen:
  • While heating the bed?
  • While heating the hot end?
  • During the print? 

Possible Causes: 

1. Hot end temp set above maximum temperature in Simplify3D.
2. Break/short circuit in hot end or bed thermocouple (GB3 and GB3+)
3. Break/short circuit in hot end or bed thermocouple extension wire(GB3 and GB3+)
4. Break/short circuit with thermistor (GB2)
5. Break/short circuit in thermistor extension wire (GB2)
6. Thermocouple daughter board malfunctioning (GB3 and GB3+) BED ONLY
7. Thermocouple daughter board jumper wire is loose (GB3 and GB3+) BED ONLY

Possible Solutions:

1. Reduce temperature in Simplify3D
2. Replace thermocouple. You can purchase replacement thermocouples here: Link to shop
   1. Instructions to replace the hot end thermocouple 
   2. Instructions to replace the bed thermocouple
3. Replace thermocouple extension wire
4. Replace thermistor
5. Replace daughterboard
6. Replace jumper wires

Questions or concerns? Reach out to our support team at support@re:3D.org or open a support ticket.