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EN.33.C.152.1405
Assembly instructions | LK Room Temperature Control ICS.2
Basic troubleshooting for the Receiver
If a fault on the receiver occurs, this is shown by
the unit's LED turning red. The importance and
possible measures are read from an error codes
table. Always make sure the receiver is connected
to a powered outlet. Also make sure the receiver's
internal fuse is intact. The fuse is located under
the high voltage cover.
NOTE:
Cut all incoming power to the unit before
opening the high voltage cover. Remember
that the relay for pump and heat source are
powered from an external power supply
which must also be cut.
Resetting the Receiver
A receiver can be reset if necessary. Note that
a reset of the receiver means that all the room
thermostats that are connected/have undergone
learning for the unit must be reset.
Things to consider:
A system that consists
of multiple receivers in a single network is
affected if a unit is deleted/reset. The net-
work stops working if a unit is deleted.
Following a reset, the receiver can be re-pro-
grammed to the network.
Note:
If the reset unit was a Master unit in the
network, all Slave units, and all the room thermo-
stats in the system must be reset/re-programmed.
Follow the instructions below for resetting the re-
ceiver:
For a receiver with 8 channels:
Hold in the A button and the button for channel
8 simultaneously until all channel lights turn red.
The unit is now reset.
For a receiver with 1 channel:
Hold in the A button and the button for channel 1
simultaneously until the channel light turns red.
The unit is now reset.
See the heading
Installation instructions for pro-
gramming the network and room thermostats.
Quick Guide Reset
At www.lksystems.se you will find step-by-step
instructions for resetting LK ICS.2.
