Error Code Guide - Honeywell MN Series User Manual

ERROR CODE GUIDE

ERROR CODE
"E1"
"E2"
(for cooling and
heating* model)
"Lo"
"Hi"
ERROR POSSIBLE CAUSE
Temperature sensor open circuit/short circuit.
Copper tube sensor open circuit/short circuit.
Temperature is below -9°C (32°F).
Temperature is over 50°C (99°F).
EN
*Applicable for models with Heating feature only.
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