28
Removing the control unit for servicing
•
The control unit can be easily removed in one
piece for servicing work.
This is done as follows:
-
Remove front panel of heater.
-
Remove right side panel if necessary.
-
Open the plastic adjustment element cover
(fig.30).
-
Pull off the adjustment knobs (fig.30).
-
Remove the front retaining screws left and right
(fig.30 and fig.31).
-
Pull the control unit forward and out (fig.32 and
fig.33).
•
Refitting takes place in reverse manner.
•
Make sure that:
-
the fluid regulator capillary tube is not bent or
damaged.
-
the connecting cables are not damaged.
-
the bimetal-strip is not bent or deformed.
-
the control unit slots onto the flaps in the rear
panel, made for this purpose.
fig.30
fig.31
fig.32
fig.33
