Honeywell HW2CESAWW9 User Manual page 23

TROUBLESHOOTING GUIDE (CONTINUED)
PROBLEM POSSIBLE CAUSE
Heating function not
activated yet.
The ambient temperature
is too high.
Heater* is not
switching ON.
Heating is activated
only when the ambient
temperature is below
77°F (25°C).
ERROR CODE GUIDE
ERROR CODE
"E1"
"E2"
(for cooling and
heating model)
"Lo"
"Hi"
SOLUTION
Check that the Heating function has been activated.
Heater is switched ON.
Switch on the Heating function when the ambient
temperature reaches below 77°F (25°C)
ERROR POSSIBLE CAUSE
Temperature sensor open circuit/short circuit.
Copper tube sensor open circuit/short circuit.
Temperature is below 32°F (-9°C).
Temperature is over 99°F (50°C).
EN
will be illuminated when the
*Applicable for models with Heating feature only.
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