Display	Cause	Solution
“LO”	Food probe or actual temperature is below 50° F (10° C) in calibration mode only	Allow unit to heat up, or remove food from unit
“HI”	Food probe temperature above 500° F (260° C) or lower temperature 275° F (135° C), or above	Turn unit off and call a certified service technician
“E-4”	Control board temperature above 140° F (60° C)	Turn unit off and call a certified service technician
“E-6”	Air probe error	Check probe connection at PC board, or call a certified service technician
“E-41”	Scrambled PC board memory	Press UP button to clear “E-41;” if it reappears, call a certified service technician
“E-56”	Setpoint storage error	Press UP button to clear “E-56,” then turn unit OFF and back ON; if “E-56” reap pears, call a certified service technician