Diagnosis of Common Failures
E
rror
codes
Multifunction detection
E1
Failure of coil temperature sensor
E2
Failure of indoor temperature sensor
E4
Troubleshooting
The table below
shows some
basic troubleshooting issues and solutions
to quickly diagnos
e and fix simple problems that you may experience when
using this air cond
itioner. If you cannot find the issue in the table below or
you cannot fix the problem even after troubleshooting, please contact a
professional service tech as
the issue may require a more thorough inspection
of the unit.
Anti-freeze protection: if the coil temperature falls below 32
℉
, the unit will
shut down.
As the coil temperature rises again above 46.4
℉
, the
unit should return back to normal operation.
18
