18
7.
Q&A
How many wireless remote
controllers are allowed to be
paired?
Up to 8 controllers allowed.
What are requirements for
pairing?
When the wireless remote controller is not paired, it can be
successfully paired.
• The wireless remote controller that is already paired with
a wireless receiver goes through a pairing process with
the other wireless receivers.
• The wireless receiver can not have the same address
registered on multiple wireless remote controllers.
When pairing multiple wireless remote controllers, assign
different address on each wireless remote controller.
When multiple remote controllers have the same address
for the same receiver, only the last-paired remote control-
ler can communicate with the receiver.
What causes a communica-
tion error between the wire-
less remote controller and
wireless receiver?
Check the following possible causes.
• The batteries on the wireless remote controller are run-
ning out.
• The transmitted signal does not reach the wireless re-
ceiver.
• The wireless remote controller is not paired.
What measures should be
taken when the set temp. 1
display indicates
all the
time?
The indoor unit or outdoor unit has a failure. Referring to the
indications on the main controller, take appropriate meas-
ures. Along with the indications, refer to the appropriate in-
stallation and service manuals for the indoor unit.
What measures should be
taken when the set temp. 2
display indicates
all the
time?
The thermistor inside the wireless remote controller has a
failure.Check the resistance of the thermistor. (When the
room temperature is between 0 and 40°C, the resistance
must be between 5 and 28 KΩ.)
What measures should be
taken when the set temp. 3
display indicates
all the
time?
A communication error occurs between the wireless remote
controller and the wireless receiver. Check the following pos-
sible causes.
• The signal that is transmitted by the wireless remote con-
troller does not reach the wireless receiver.
• The wireless remote controller is not paired.
What measures should be
taken when the set temp. 4
display indicates
all the
time?
A communication error occurs between the wireless receiver
and the indoor unit. Check the following possible causes.
• The cable connecting between the wireless receiver and
the indoor unit has severed.
• The connector on the wireless receiver is not correctly
connected to the indoor unit.
