Watts tekmar 294 - Troubleshooting - Error Messages (4)

IOM-T-294 2205 © 2022 tekmar
51
Error Messages (4 of 4)
Error Title Description
Modbus Bus Error
The control has detected a problem with the boiler modbus communication. Check the modbus wire polarity,
the cable length, connection to the boiler, and connection of any terminating resistors.
Modbus Boiler 01 to 16
Lost Error
The control is unable to communicate to Boiler 01 to 16 through Modbus. Please check that the boiler
manufacturer, make and model are set correctly. Please contact tekmar technical support for further assistance.
Boiler 01 to 16
Service Hours Alert
The boiler run time has exceeded the recommended boiler service hours alert interval. Once maintenance
has been completed, the service interval can be reset in the boiler status screen.
Boiler 01 to 16 Service
Cycles Alert
The boiler has exceeded the recommended boiler service cycles. Once maintenance has been completed,
the service interval can be reset in the boiler status screen.
Unsupported tN4
Device
An unsupported tN4 device is connected to tekmarNet communication network. This may include the Mixing
Expansion Modules 440, 441, and 444. The error will clear automatically one this device is removed.
Hardware Fault
An internal hardware fault has been detected. Please power the control off then back on. If the hardware fault
reoccurs, the control may require replacement. Please contact technical support for assistance.