Error
code
Problem Solution
Clock
symbol
flashing
in dis-
play
Time settings
were lost due
to power cut.
The thermostat resumes to
manual mode.
E4 sym-
bol
flashing
in dis-
play
The thermo-
stat has over-
heated and
has switched
off.
Let the thermostat cool for pe-
riod. Then switch the thermo-
stat off and on. If the error per-
sists contact your authorized
installer.
E5 sym-
bol
flashing
in dis-
play
Floor sensor
short circuit-
ed.
If the error persists contact
your authorized installer.
E6 sym-
bol
flashing
in dis-
play
Floor sensor
disconnected.
If the error persists contact
your authorized installer.
DEVIreg™ 535
User Guide 19
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