16
Error Code Description
FE
No address
E0
Mode conflict
E1
Communication error between indoor and main outdoor unit
E2
T1 (Room temperature sensor) malfunction
E3
T2 (Middle of evaporator sensor) malfunction
E4
T2B (Outlet of evaporator sensor) malfunction
E5
T2A (Inlet of evaporator sensor) malfunction
E6
DC fan motor error
E7
EEPROM failure
Eb
EXV malfunction
Ed
Outdoor unit Fault
EE
High Water Alarm
A0
Emergency stop
D8
Remote off
U4
MS self-inspection error
F8
MS error
Troubleshooting
Digital Display
The indoor unit is equipped with a a digital display on the
front cover. During normal operation, the setpoint displays.
If there is an error, the alphanumeric error code displays.
The lights under the digital display refer to unit operation
status. Refer to the table below to view the error codes. The
error code will replace the temperature setting displayed
on the receiver. If more than one error has occurred, the
codes will alternate so that all codes are shown.
Figure 32. Receiver/Display
Make note of the code (E1, EE, etc.), then reset the display
by pressing the ON/OFF button on the unit controller.
Press the ON/OFF button a second time to reapply power
to unit. If the code is still displayed, disconnect and restore
power at the unit disconnect switch or circuit breaker. If
the problem was temporary, the code will not reappear.
If the error code reappears after power has been broken
and restored at the disconnect switch or circuit breaker,
call VRF Technical Support 1-844-438-8731.
Table 8. Fault Code Display on Controller
Error Code Description
F0
Communication/Address error between indoor units and wired controller
F1
Communication/Wiring error between indoor units and wired controller
E2
Controller temperature sensor error
Table 7. Fault Code Display on Indoor Unit Receiver
