tekmar 423 Universal Reset Module User Manual
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© 2007
D 423 - 08/07
Error Message
Description
ADJUST ERROR
The control failed to read the Adjust Menu settings, and reloaded the factory default settings.
Operation stops until you check all the Adjust Menu settings.
Note: To clear the error, the access level must be set to Advanced and the settings in the
Adjust menu must be checked.
MISCELLANEOUS ERROR
The control failed to read the Miscellaneous Menu settings, and reloaded the factory default
settings. Operation stops until you check all the Miscellaneous Menu settings.
Note: To clear the error, the access level must be set to Advanced and the settings in the
Misc menu must be checked.
BOILER BUS ERROR
Communication has been lost on the Boiler Bus. Check the tN4, C and R wires for each tN4
device. Check the polarity of the C and R wires. Check for loose or broken wires. The error
message self clears once the error condition is corrected.
BOILER BUS DEVICE LOST
Communication is lost to a tN4 device on the Boiler Bus. The number shown is the address
of the lost device. The LCD on the lost device displays Bus Boil OPn. Ensure that there is
power to the lost device. Trace the wires from the control to the lost device looking for loose
or damaged wires. The error message self clears when the error condition is corrected.
Note: If you deliberately remove a tN4 device, hold the Up and Down buttons to clear the
error.
BUS 1 ERROR
Communication has been lost on Bus 1. Check the tN4, C and R wires for each tN4 device.
Check the polarity of the C and R wires. Check for loose or broken wires. The error message
self clears once the error condition is corrected.
BUS 1 DEVICE LOST
Communication is lost to a tN4 device on Bus 1. The number shown is the address of the
lost device. The LCD on the lost device displays Bus OPn. Ensure that there is power to the
lost device. Trace the wires from the control to the lost device looking for loose or damaged
wires. The error message self clears when the error condition is corrected.
Note: If you deliberately remove a tN4 device, hold the Up and Down buttons to clear the
error.
BUS 2 ERROR
Communication has been lost on Bus 2. Check the tN4, C and R wires for each tN4 device.
Check the polarity of the C and R wires. Check for loose or broken wires. The error message
self clears once the error condition is corrected.
Error Messages (1 of 5)