© 2013
553_D - 04/13
46 of 48
A Watts Water Technologies Company
Error Message
Description
SYSTEM CONTROL LOST ERROR
The thermostat can no longer communicate to the tekmarNet
®
system
control. Check for open or short circuits in the tekmarNet
®
communication
wiring. The error automatically clears once the tekmarNet
®
system
control has been detected.
If the tekmarNet
®
system control was intentionally removed from the
thermostat, remove and then re-apply power to clear the error.
AIR GROUP MASTER ERROR
Two thermostats have been assigned to be the master of the same
air group (cool group) number.
To clear the error, go to the Setup menu and either select a different
air group master number or set the air group master to None.
AIR GROUP MASTER LOST ERROR
The thermostat has been assigned to be the member of an air group
(cool group), but the air group master is not available.
To clear the error, go to the Setup menu and set the air group master
to None, or install an air group master on the system.
SCHEDULE MASTER ERROR
Two thermostats on the tekmarNet
®
system have been set to the
same Schedule Master number. The thermostat operates at the
temperature settings while this error is present.
To clear the error, select a different Schedule Master number, set
a different Schedule Member number, set the Schedule to Zone,
or set the Schedule to None.
SCHEDULE MEMBER ERROR
The thermostat can not longer detect its schedule master. The
thermostat operates at the
temperature settings while this
error is present.
To clear the error,
select a different Schedule Member number, set
the Schedule to Zone, or set the Schedule to None.
CHANGE FILTER
The air filter requires cleaning or replacement. Once this has been
completed touch the Cancel key in the Toolbox menu. Alternatively, go
to the Monitor menu and clear the Filter Hours by touching the number
and then touch the ENTER key.
FREEZE PROTECTION WARNING
The duct temperature has dropped below 35°F (1.5°C). The warning
message self clears once the duct temperature exceeds 40°F
(4.5°C).
Error Messages (4 of 5)
