© 2013
400_D - 09/13
29 of 32
Error Message
Description
BOILER DEVICE LOST (b:01 TO b:24)
Each tekmarNet
®
device (thermostat, setpoint control, timer) has an address. The device with
this address on the boiler water temperature is no longer reporting back to the 400.
The device can be located by either the address, or by going to each device in the building,
checking that the LCD is on, and the tekmarNet
®
communication symbol is on. Trace the wires
from the control to the lost device looking for loose or damaged wires.
Note:
If you deliberately remove a tekmarNet
®
device, hold the Up and Down buttons to clear
this error.
MASTER DEVICE ERROR
More than one master has been detected on the tekmarNet
®
4 expansion terminals. The 400
is a “Master Device” and no other tekmarNet
®
reset controls can be added to the tekmarNet
®
4
expansion terminals. If one has been added, remove it from the system.
DEVICE ERROR AT ADDRESS b:01 to b:24
Each tekmarNet
®
device (thermostat, setpoint control, timer) has an address. One of the
devices on the boiler water temperature has an error. If there is a record of the device
address together with the room name, go to that device to correct the error. Otherwise, go
to each device in the building, checking for the flashing Warning symbol. Once the error on
the device is corrected, the error message will clear.
MIX MODULE ERROR
A Mixing Module has been connected to the tN4 Boiler Expansion terminals. The 400 cannot
operate tekmarNet
®
mixing expansion module. Remove the device, the error message self
clears once the error condition is corrected.
Error Messages (2 of 2)
