© 2015 OJ Electronics A/S
26
During normal operation the power LED will be ON when the master is energised. The red output LEDs (1 to 8 on the master and 9 to 14 on the add-on
module) indicate whether the output relay is ON/OFF.
An error/fault is indicated if the power LED or one of the red output LEDs flashes. The problem can be identified by the number of times a specific LED
flashes, as described in the following:
Error number will be indicated by the number of flashes, with a pause of less than a 1/2 second between flashes. Indication will be followed by a pause of
2 seconds, after which the sequence will be repeated. Error codes can also be seen in the service menu of WLM3-FS masters (submenu 2).
Flashing power lED (red and green)
Communication to the network has errors. On the network master, it indicates that communication to one or more of the masters acting as network slaves
has been lost. On a network slave, it indicates that communication to the network master has been lost.
Flashing power lED (red)
E1, 1 flash
One or more room sensors, room controllers, WLHX3s or WLAC3s that are set to channel 0 or channel 15 are no longer sending data to
the network controlling master. The fault can only be corrected by replacing the unit. The master must then be hard reset (see next page).
(NOTE: If the room sensor is of wireless type, the error/fault message could be an indication that the power has failed and that the unit's
internal battery needs to be replaced.)
E2, 2 flashes
One or more units have been set to a channel number which does not exist in the system. For example, the message will occur if the
units are set to channels 9-14 and the required add-on (AO) module is not found in the system. The error can be corrected by setting the
channel number of the unit to one that exists in the installed master/add-on module system.
E3, 3 flashes
Application sensor defective. The fault can only be corrected by replacing the temperature sensor. If the sensor has been deliberately
removed to change system operation, the master must be hard reset (see next page).
E4, 4 flashes
The outdoor compensation module (WLOC3) is defective. The fault can only be corrected by replacing the outdoor compensation
module.
If the module has been deliberately removed to change system operation, follow the HARD RESET instructions (see next page).
E5, 5 flashes
The external supply water sensor (type ETF-1899A) is defective. The fault can only be corrected by replacing the temperature sensor. If
the sensor has been deliberately removed to change system operation, the master must be hard reset (see next page).
E6, 6 flashes
Internal overheating. The master has its own internal overheating protection system. The problem can be remedied by improving
ventilation around the master module.
E7, 7 flashes
Defective internal overheating sensor. The master will operate as normal, but will no longer be protected against internal overheating. The
fault can only be corrected by replacing the master.
E8, 8 flashes
Communication to the AO module has been lost. The fault can be corrected by re-establishing connection to the AO module or by
replacing the AO module if it is defective. If the AO module has been deliberately removed, the master must be hard reset.
E9, 9 flashes
Total number of input units exceeded. Please contact the manufacturer or your local service engineer.
E10, 10 flashes No connection to wireless receiver, type WLRC3.
Only one error/fault condition can be shown at a time. If more than one error occurs, they will be prioritised in the order described (E1, 2, 3…).
Error indication
g
uidelines and special featur
es
Summary of Contents for WLM3
Page 55: ... 2015 OJ Electronics A S 55 ...
