Watts tekmar 294 - Troubleshooting - Error Messages (3)

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IOM-T-294 2205 © 2022 tekmar
Error Title Description
tN4 Device
b:01 to b:25 Error
A tN4 thermostat or device with address b:## has an error that requires corrective action. The ## varies from
01 to 25. Locate the tN4 device and troubleshoot using the device’s Installation and Operating Manual.
Ethernet
Disconnected Error
The Ethernet is not connected to a network. Check the Ethernet cable connection to the control and the Router
or Switch. Check that the Router or Switch is powered on and operating correctly.
Wi-Fi
Disconnected Error
The Wi-Fi network could not be found. Please check that the Wi-Fi network name was entered correctly and
that the Router signal is medium to high strength. If necessary, please reconfigure your Wi-Fi network.
Wi-Fi Invalid
Password Error
The Wi-Fi Password was not accepted. Please check that the password was entered correctly. If necessary,
please reconfigure your Wi-Fi network.
DHCP Address
Error
The router has not assigned the control an IP address. Please check the router’s configuration settings
and ensure that the DHCP server is enabled and enough IP addresses are available. Please contact an IT
professional for assistance.
Internet Unavailable
Error
The control is unable to communicate to the Watts cloud through the Internet. The error will automatically
clear once Internet communications are established. You may also set the Internet Connection Type to Off
to clear the error.
To correct:
1. Check the control’s Internet DNS 1 and DNS 2 settings
2. Check that the router firewall is not blocking or filtering MAC addresses
3. Check that the router firewall is not blocking outbound port 23
Watts
®
OnSite Error
The control is unable to connect to Watts OnSite. Please check that your router is not blocking outbound ports
443 or 8883. Please contact an IT professional for assistance.
Boiler Plant No Heat
Alert
The boiler supply temperature did not increase within the boiler alert time. There is likely a mechanical failure
with either a boiler or circulator that requires immediate attention. The control operates normally while this
alert is present.
To reset the alert, press the ‘X’ button to dismiss the error message on the home screen.
Boiler High
Temperature Alert
The boiler supply temperature exceeded the boiler high temperature alert threshold. There is likely a mechanical
failure with either a boiler or circulator that requires immediate attention. The control operates normally while
this alert is present.
The alert clears when the boiler supply temperature falls 2°F (1°C) below the boiler high temperature alert
threshold.
Boiler Low
Temperature Alert
The boiler supply temperature fell below the boiler low temperature alert threshold. There is likely a mechanical
failure with either a boiler or circulator that requires immediate attention. The control operates normally while
this alert is present.
The alert clears when the boiler supply temperature rises 2°F (1°C) above the boiler low temperature
alert threshold.
High Pressure Alert
The system pressure exceeded the high pressure alert threshold. There may be a problem with the system
expansion tank or makeup water feed. The control operates normally while this alert is present.
The alert clears when the pressure falls 1 psi (7 kPa) below the high pressure alert threshold.
Low Pressure Alert
The system pressure exceeded the low pressure alert threshold. There may be a leak in the system. The
control operates normally while this alert is present.
The alert clears when the pressure rises 1 psi (7 kPa) above the low pressure alert threshold.
Boiler 01 to 16 Error
The control has read an error code status from boiler 01 to 16 through the modbus communication channel.
To correct the issue, please lookup the error code in the boiler manufacturer’s manual.
Manufacturer: List of select boiler manufacturers
Series: List of select supported boiler series
Model: List of select supported boiler models
Code: Modbus error code from boiler
Error Messages (3 of 4)