chiller has an error code

[hvsukrw]

Hello evryone! Been reading the site for years trying to learn about reef tanks. Great community/people here. Thanks for all the info i have read so far but I need help with my chiller.

its a JBJ mini arctica and i have an E 12 error code on the digital display. Does anyone know anything about these codes?
Any help would be great. Thank You in advance.

Dennis

[ange062]

It's in the manual, the temp sensor is not connected or is damaged.
http://www.jbjlighting.com/pdfs/2008_MINI_ARCTICA_MANUAL.pdf