Error Messages - Tekmar Invita Installation, Operation And Maintenance Manual

Error Messages

When an error occurs an email notification will be sent to the registered mobile account owner .
COMMUNICATION ERROR
Communication between the display module and the HVAC Interface Module is interrupted . This
error clears automatically once communication is re-established .
This error can occur if the power supply voltage to the HVAC Interface Module is low . Check the
voltage with a volt meter and that the transformer VA rating is enough to power all the equipment .
MEMORY ERROR
The thermostat memory settings are corrupted . To clear, load the factory defaults in the Toolbox
menu . The thermostat will not operate any heating or cooling equipment while this error message
is present .
INTERNAL ROOM SENSOR FAULT
Due to an open or short circuit, the thermostat is unable to read the internal room temperature
sensor . If sensor 1, 2 or 3 is set to room the thermostat continues to operate, otherwise operation
stops .
The error cannot be field repaired . Contact your tekmar sales representative for warranty or repair
procedures .
INTERNAL HUMIDITY SENSOR FAULT
Due to an open or short circuit, the thermostat is unable to read the internal humidity sensor . The
thermostat stops controlling the humidifier or dehumidifier unless an external humidity sensor is
installed on Sensor 3 .
The error cannot be field repaired . Contact your tekmar sales representative for warranty or repair
procedures .
SENSOR 1 FAULT
Due to an open or short circuit, the thermostat is unable to read the sensor wired to S1 and Com .
The thermostat stops normal operation if sensor 1 is the only active room or floor sensor or if a floor
maximum temperature has been set .
Check the auxiliary sensor wire for short circuits according to the sensor installation manual . It may
be necessary to replace the auxiliary sensor . Once the error has been corrected, the error message
automatically clears .
SENSOR 2 FAULT
Due to an open or short circuit, the thermostat is unable to read the sensor wired to S2 and Com .
The thermostat stops normal operation if sensor 2 is the only active room or floor sensor or if a floor
maximum temperature has been set .
Check the auxiliary sensor wire for short circuits according to the sensor installation manual . It may
be necessary to replace the auxiliary sensor . Once the error has been corrected, the error message
automatically clears .
SENSOR 3 FAULT
Due to an open or short circuit, the thermostat is unable to read the sensor wired to S3 and Com .
The thermostat stops normal operation if sensor 3 is the only active room sensor or if a floor
maximum temperature has been set .
Check the auxiliary sensor wire for short circuits according to the sensor installation manual . It may
be necessary to replace the auxiliary sensor . Once the error has been corrected, the error message
automatically clears .
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