20
Description
INTERNET UNAVAILABLE
The thermostat has a WiFi connection to the router but is unable to communicate
to the Internet. Steps to clear the error include: 1) power off and on the router, 2)
power off and on the thermostat.
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 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 or 2 is set to room the thermostat continues
to operate, otherwise operation stops.
The error cannot be field repaired. Contact your Watts 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 in-
stallation 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.
ROOM HOT WARNING
The room temperature is above the Room Hot Warning setting in the Alerts
menu. The warning will automatically clear once the room temperature falls
below the setting.
ROOM COLD WARNING
The room temperature is below the Room Cold Warning setting in the Alerts
menu. The warning will automatically clear once the room temperature rises
above the setting.
When an error occurs an email notification will be sent to the registered Watts
Home mobile or account owner.
Error Messages
