© 2013
400_D - 09/13
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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 the House Control or tekmarNet
®
Thermostat flashes
on the screen, it is indicating a problem on the system.
2.
Identify:
Use the Menu button to locate the Toolbox Menu. The Error code should appear as the first item.
3.
Solve:
Using the lookup chart below, match the Error code to the one on the control. Use the Description in the chart
to solve the problem.
Error Messages (1 of 2)
Error Message
Description
ADJUST ERROR
The control failed to read the Adjust menu settings, and reloaded the factory default settings.
Operation stops until all the Adjust menu settings are checked.
Note:
To clear the error, the access level must be set to Installer and each setting in the Adjust
menu must be checked.
OUTDOOR SENSOR SHORT CIRCUIT
Due to a short circuit, the control failed to read the outdoor sensor. As a result, the control
assumes an outdoor temperature of 32°F (0°C) and continues operation. Locate and repair
the problem as described in the “Test the Sensor Wiring” section.
OUTDOOR SENSOR OPEN CIRCUIT
Due to an open circuit (disconnected or broken wire), the control failed to read the outdoor
sensor. As a result, the control assumes an outdoor temperature of 32°F (0.0°C) and
continues operation. Locate and repair the problem as described in the “Test the Sensor
Wiring” section.
BOILER SENSOR SHORT CIRCUIT
Due to a short circuit, the control failed to read the boiler sensor. When there is a call for heat,
the control no longer controls the boiler. Instead, the control provides a boiler enable and the
boiler operates on its aquastat/limit until the sensor is repaired. The control will not operate
the boiler contact if the Boil Minimum setting is set to Off. Locate and repair the problem as
described in the “Test the Sensor Wiring” section.
BOILER SENSOR OPEN CIRCUIT
Due to an open circuit, the control failed to read the boiler sensor. The control no longer
controls the boiler. Instead, the control provides a boiler enable and the boiler operates on its
aquastat/limit until the sensor is repaired. The control will not operate the boiler contact if the
Boil Minimum setting is set to Off. Locate and repair the problem as described in the “Test
the Sensor Wiring” section.
DOMESTIC HOT WATER SENSOR SHORT CIRCUIT
Due to a short circuit, the control failed to read the DHW sensor. As a result, the control no
longer heats the DHW tank. Locate and repair the problem as described in the “Test the
Sensor Wiring” section. DHW tank heating will resume once the sensor problem is corrected.
The error message self clears once the error condition is corrected.
DOMESTIC HOT WATER SENSOR OPEN CIRCUIT
Due to an open circuit, the control failed to read the DHW sensor. As a result, the control
no longer heats the DHW tank. Locate and repair the problem as described in the “Test the
Sensor Wiring” section. DHW tank heating will resume once the sensor problem is corrected.
The error message self clears once the error condition is corrected.
DOMESTIC HOT WATER CALL ERROR
A DHW sensor and a DHW call have been applied at the same time. The DHW tank will not
be heated until the DHW call signal is removed. The error message self clears once the error
condition is corrected.
