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Troubleshooting
It is recommended to complete all wiring to ensure trouble-free operation . Should an error occur, simply follow these steps:
1 .
Find:
If a banner is on the screen, it indicates a problem on the system .
2 .
Identify:
Press the BARS icon on the top right corner to enter the menus and press notifications . The latest error notification will
appear at the top of the list .
3 .
Solve:
The notification description provides the instructions on the corrective action required to clear the error .
Errors and Alerts (1 of 3)
Error or Alert Title
Description
Control Memory
Error
A memory error has been detected . The control will not operate the boilers until all settings have been reviewed .
You may also reload factory defaults and use the Setup Wizard to configure the control . If the memory
error keeps recurring after a power outage, the control may require replacement . Consult technical support
for assistance .
Outdoor Sensor
Short Error
A short circuit is detected on the outdoor air temperature sensor input . The control operates the central heating
system at the boiler design temperature until this fault is corrected .
To correct, remove the wires from the outdoor air sensor terminals, then use an electrical multimeter to measure
the resistance . The resistance should be proportional to the temperature lookup table in the Installation and
Operation Manual . If the resistance is short circuit, check the wires for damage . If the wires are OK, then
replace the Outdoor Sensor 070 . Once the fault is corrected, the error clears automatically .
Outdoor Sensor
Open Error
An open circuit is detected on the outdoor air temperature sensor input . The control operates the central
heating system at the boiler design temperature until this fault is corrected .
To correct, remove the wires from the outdoor air sensor terminals, then use an electrical multimeter to measure
the resistance . The resistance should be proportional to the temperature lookup table in the Installation and
Operation Manual . If the resistance is open circuit, check the wires for loose wiring connections . If the wires
are OK, then replace the Outdoor Sensor 070 . Once the fault is corrected, the error clears automatically .
tekmarNet Outdoor
Sensor Error
The control has not received an outdoor temperature report from the tekmarNet network . Check the tekmarNet
network for the location of the outdoor sensor measurement . Check the sensor for open or short circuits
and replace the Outdoor Sensor 070 if necessary . Once the fault is corrected, the error clears automatically .
Condensate Sensor
Short Error
A short circuit is detected on the condensate return temperature sensor input . As a result, the control does
not operate the establishing steam or cool down periods .
To correct, remove the wires from the condensate return sensor terminals, then use an electrical multimeter
to measure the resistance . The resistance should be proportional to the temperature lookup table in the
Installation and Operation Manual . Check the wires for damage . If the wires are ok, then replace the Universal
Sensor 071 . Once the fault is corrected, the error clears automatically .
Condensate Sensor
Open Error
An open circuit is detected on the condensate return temperature sensor input . As a result, the control does
not operate the establishing steam or cool down periods .
The condensate sensor is optional, and the setting may be incorrectly turned on . Check if a sensor is installed .
If not installed, set Condensate Sensor to off . If installed, remove the wires from the condensate return sensor
terminals, then use an electrical multimeter to measure the resistance . The resistance should be proportional
to the temperature lookup table in the Installation and Operation Manual . If the resistance is open circuit, check
the wires for loose wiring connections . If the wires are ok, then replace the Universal Sensor 071 . Once the
fault is corrected, the error clears automatically .
Indoor Sensor Short
Error
A short circuit is detected with the indoor sensor on the Aux sensor input .
To correct, remove the wires from the Aux sensor terminals, then use an electrical multimeter to measure
the resistance . The resistance should be proportional to the temperature lookup table in the Installation and
Operation Manual . Check the wires for damage . If the wires are ok, then replace the Indoor Sensor 076, 077,
or 084 . Once the fault is corrected, the error clears automatically .
