Honeywell HW4CEDVWW0 - Error Code Guide

18ENEN
TROUBLESHOOTING GUIDE (CONTINUED)
ERROR CODE ERROR POSSIBLE CAUSE
"E1" Temperature sensor open circuit/short circuit.
"E2"
(for cooling and
heating model)
Copper tube sensor open circuit/short circuit.
"Lo" Temperature is below 32°F (-9°C).
“Hi” Temperature is over 99°F (50°C).
ERROR CODE GUIDE