1.
Switch OFF the power.
2.
Release the side closures and
pivot the control unit down.
3.
Remove cover
A
.
4.
Check fuse F1 (see connection and
wiring diagram).
Extension kit for heating circuit with mixer
Checking the rotational direction of the mixer motor
1.
Switch ON/OFF switch
A
at the
extension kit first OFF and then ON
again. The device will carry out the
following self-test:
&
Mixer "Close" (150 s)
&
Pump "ON" (10 s)
&
Mixer "Open" (10 s)
&
Mixer "Close" (10 s)
Then standard control mode
resumes.
2.
Note the rotational direction of the
mixer motor during its self-test.
Then set the mixer manually to
"Open" again.
Note
The flow temperature sensor must
now capture a higher temperature.
If the temperature drops, either the
motor is turning in the wrong direc-
tion or the mixer set is incorrectly
fitted.
Mixer installation instruc-
tions
Changing the rotational direction of the mixer motor (if required)
Danger
An electric shock can be life-threatening.
Before opening the equipment, switch OFF the ON/OFF switch and
mains voltage, for example at the fuse or the main isolator.
Repairs
(cont.)
87
Troubleshooting
5692
673
GB
Содержание VITODENS 300-W
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