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• The TPSE101/TPSE201 will return to Normal mode after mains power is resumed.
Backup Battery
The thermostat is shipped from the factory with the battery installed. To stop it from
discharging during shipment and storage, the battery is disconnected by a jumper on the back
of thermostat. This jumper (Memory On) must be moved before the thermostat is mounted
on the wall.
The battery that retains the time and date during a power failure, without mains power,
should last up to one year. If the time and date need to be reset after a power failure, this is an
indication that the battery needs to be replaced.
To replace the battery, open the back of the Thermostat case using a screw driver. Remove the
screw marked by a red tab (see image) and carefully lift off the top circuit board.
Remove the old battery from its clip. Insert a new battery (type CR2032 or equivalent)
observing the correct polarity. Carefully re-position the top circuit board pressing gently back
in to place taking care to engage the pins from the lower circuit board into the socket. Re-fit
the rear casing.
Screw
Socket
