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© 2015 OJ Electronics A/S
TROuBLeSHOOTING:
Problem
Possible cause & solution
Channel Led does not light up
(when in learning mode)
Check that the power Led is flashing quickly. If it is not, switch dIP-3 to ON position.
2-wire bus may be incorrectly connected. Voltage at each room sensor should be no lower than 4.0V (check
for + & - continuity and short circuits).
With wireless room sensors, check that the batteries have been inserted correctly.
With wireless room sensors, check whether the initialize button has been pressed.
With wireless room sensors, check that the WLRC3-19 (receiver) has been connected correctly.
If the Leds for channel 9-14 do not light up, check that the AO module has been connected to the master
correctly.
Check that the room sensor in the room has been set to the correct channel number.
The channel selector on the room sensor may be slightly out of position, try rotating it and then set it again.
Channel Led does not light up
(when in install mode after the room sensor
has been activated (set to maximum))
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The master itself has cancelled install mode. After 2 hours the master automatically de-activates install
mode. Reset dIP-1.
Check that the room sensor in the room has been set to the correct channel number (two room sensors
might be interchanged).
The actuator on the manifold does not
open after 3 minutes
Check that the red channel Led is lit (if not, see above).
The actuator for the room is not connected to the correct output on the master.
Bad electrical connection between actuator and terminals.
The actuator may be faulty or manually locked.
uFH pump does not start in install mode
Bad electrical connection between pump and terminals.
Install mode has not been activated. Move dIP-1 to the OFF position and then back to the ON position.
The pump may be faulty.
