Error Codes

Display Cause Solution
“E-4” Control board overheating

Turn switch to OFF position, then turn switch back to ON; if display shows “E-4”, the control board is getting too hot; make sure unit is not overheating

“E-6” Faulty temperature probe

Check to see if unit is set to the correct number of drawers ex: MP-942=2 drawers (see Programming)

Check probe for loose connection or probe faulty

“E-41” Memory scrambled

Press and release the UP and DOWN buttons to initialize the program; if “E-41” persists replace the control board

Press and hold the UP and DOWN buttons and turn unit on. After SP shows on display, press SET button twice. Then press and hold the UP or DOWN button until In-SYS shows in display; if “E-41” persists, replace the control board

“Hi”

Unit overheating; faulty relay or control board

Have relay or control board replaced