Operation manual
18
EKRTWA
Room thermostat
4PW56102-1
7. Troubleshooting
The guidelines below might help to solve your problem. If you
cannot remedy the problem, consult your installer.
7.1.
No readings on the LCD (display blank)
Batteries are empty. Replace batteries. Refer to "Replacing
batteries" on page 19.
7.2.
Buttons on front cover do not react
If
k
is flashing when pressing a button on the front cover it
means the key lock is activated. Press
+
and
-
at the same
time to deactivate it.
7.3.
Schedule timer starts up too early
The schedule timer by default starts up in advance, trying to
reach the programmed setpoint at the programmed time. If
desired, disable this function by means of code
2® 01
in the user
menu.
7.4.
Clock and date are flashing on the thermostat LCD
The clock and date are flashing before first use or after
replacement of batteries. Set clock and date as described in
“Setting the clock and date” on page 5.
7.5.
User-defined schedule does not react
The
1® 01
code was modified after programming the user-defined
schedules. Re-program the schedules as described in "Setting
up a user-defined schedule" on page 12.
7.6. Error codes on the thermostat LCD
Error codes are displayed next to the flashing icons
y i
.
Error
code
Failure cause
Corrective action
Ï©
Broken integrated
temperature sensor.
Contact your local dealer.
1D_OM_4PW56102-1.book Page 18 Thursday, August 27, 2009 10:52 AM
