© 2015
532_D - 02/15
17 of 20
A Watts Water Technologies Company
Error Message
Description
SETUP MENU SAVE ERROR
The thermostat failed to read the programmable settings from memory
and has reloaded the factory default settings. The thermostat operates
on the factory defaults settings to ensure the building does not freeze.
To clear the error, set the switch settings to unlock and go through all
the settings in the Programmable Setting menu.
tN2 PORT ERROR
The thermostat has been connected to a tN2 zone already in use by
a 2-stage zoning control. A 2-stage device requires two tN2 ports to
operate.
To clear the error, move the thermostat’s tN2 wires to an unused
tN2 port on the zoning control.
tekmarNet ERROR
The tekmarNet communication bus has either an open or a
short circuit. The result is that there are no communications.
Check for loose wires between tN4 and C. Check for short
circuits between the tN4 and C wires on the House Control,
Wiring Center, or Zone Manager. Check for correct polarity
between the C and R wires.
The error clears automatically once the wiring fault has been
corrected.
To force the error to clear while allowing a short or open circuit
to continue, push and hold the Up and Down buttons together.
ADDRESS ERROR
Two thermostats have been manually set to the same address.
The thermostat continues to operate with this error but does not
communicate with the tekmarNet system.
To clear this error, select an unused tekmarNet address or
select automatic addressing.
DEVICE LIMIT ERROR
More than 24 devices (thermostats, setpoint and snow melting controls)
have been connected to the tekmarNet communication bus. To clear
the error, remove and relocate devices to other available buses
until the device count is 24 or less.
Troubleshooting
Error Messages
