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12
5. Trouble Shooting
5.1 Trouble Shooting Guide
Symptom (Fault Message)
Possible Cause
Remedy
The
RF Receiver
does not
react to setpoint changes
on the
Room Unit
.
The
Room Unit
and
RF Receiver
are not
bound or the installer parameter 8:Su has
not been set correctly.
Make sure that the 8:Su parameter
value is set correctly. Reset the
RF
Receiver
by pressing and holding
the push button for 15 seconds.
Then follow the binding / rebinding
procedure as described in section
4.
Binding / Rebinding Procedure
.
After the binding procedure
the red LED continues to
flash on the
RF Receiver
.
Incorrect or incomplete binding procedure.
Incorrect position of the
Room Unit
during
binding.
Repeat the binding procedure.
Repeat the binding procedure keeping
approx. 1m distance between the
RF
Receiver
and the
Room Unit
.
The red LED is on the
RF
Receiver
(Communication
loss)
The
RF Receiver
receives no RF messages
from the
Room Unit
:
RF signal is blocked due to wrong location
of the
Room Unit
.
Room Unit
batteries are exhausted.
Re-locate the
Room Unit
following
instructions in section
2. Installing the
System MMI Pack
.
Replace batteries in the
Room Unit
.
5.2 Diagnostic Mode
The
Room Unit
has a user accessible mode that provides information useful to a remote service person
and a means of checking whether the heating system is working. To access this press the button then
press and hold the button for 5 seconds. The
Room Unit
will enter the user settings mode. Next press
and hold the and buttons together. The following information can be viewed on the display by
pressing the or buttons : model ID, date code (WW/YY) & checksum.
Hereby, HITACHI declares that this
Room Unit
and
RF Receiver
are in compliance with the essential
requirements and other relevant provisions of Directive 1999/5/EC, 2006/95/EC and 2004/108/EC.
Installation and Operation Manual
Содержание ATW-RTU-02
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