Mitsubishi Electric GUG-01SL-E Handbook page 28

No. Symptom
12 Even when the target
temperature of re-
mote controller (PZ-
01RC) is changed,
the temperature
display returns to the
previous temperature
right away.
13 Even when the opera-
tion mode of the Dx-
coil unit is changed
by remote controller
(PZ-01RC), it returns
to the previous mode
right away.
14 Test run of the drain
pump cannot be oper-
ated from the remote
controller.
15 Even though LED11
on PCB B is unlit or
no error code is dis-
played on Lossnay
remote controller
(PZ-61DR-E), an er-
ror code is displayed
on Dx-coil unit remote
controller (PZ-01RC).
16 Even though LED11
on PCB B is blinking
or an error code is
displayed on Lossnay
remote controller (PZ-
61DR-E), no error
code is displayed on
Dx-coil unit remote
controller (PZ-01RC).
17 In the case of inter-
locking with the City
Multi indoor unit, even
when its operation
mode or target tem-
perature is changed,
operation mode or
temperature display
on remote controller
(PZ-01RC) does not
change.
Cause
Temperature range that can be set
differs depending on control types
(RA temp. control or SA temp. con-
trol) or operation modes of the Dx-
coil unit.
Target temperature is fixed by the
function selection switches (SW2-
3, SW2-4, SW2-5: Setting of fixed
temperature) on PCB A of the Dx-coil
unit.
Operation mode is fixed by the func-
tion selection switches (SW2-1,
SW2-2: Setting of fixed operation
mode) on PCB A of the Dx-coil unit.
Drain pump test run cannot be oper-
ated from the remote controller.
The error code "P1" may be dis-
played on Dx-coil unit remote control-
ler (PZ-01RC), even though no error
code is displayed on Lossnay remote
controller (PZ-61DR-E).
The Dx-coil unit is stopping.
The function selection switch (SW11-
3: Selecting of the pattern when an
error occurs) on PCB B is set to ON
"Pattern B."
Setting of the function selection
switches on circuit boards of the Dx-
coil unit, for which any setting change
is prohibited, is changed.
Communication error between PCB A
and PCB B of the Dx-coil unit
Operation mode or target tempera-
ture of the City Multi indoor unit does
not affect the Dx-coil unit.
─ 28 ─
Corrective action
For details, see the operating instructions
of the Dx-coil unit.
Check the setting of the function selection
switches (SW2-3, SW2-4, SW2-5) on PCB
A.
Check the setting of the function selection
switches (SW2-1, SW2-2) on PCB A.
It is not a failure.
Operate the test run by using the function
selection switch (SW11-1) on PCB B.
See 7-3 (1).
Remote controller (PZ-01RC) displays no
error code when the Dx-coil unit is stopped.
When the switch (SW11-3) is ON, remote
controller (PZ-01RC) displays no error
code during the "Fan" mode of the Dx-coil
unit.
See 7-2 (6).
See 7-3 (1).
It is not a failure.