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In case that a thermal protection device trig-
gers repeatedly, check for possible cause
prior to any further use of the unit.
9.10.2 Unlocking of a thermo switch
on the cylinder cover
Whether a thermo switch and, if so, which of
the devices, has triggered, may be detected
by a passage measurement (let the unit cool
down before starting the measurement!).
Unlocking is then accomplished as such:
Slightly push down the red button (see fig. in
section 9.11) protruding a few milimeters
from its holder. This will make the button
return to its original position and unlock the
mechanism.
Relasing a thermo switch does not erase the
fault message in the control fault memory.
9.10.3 Unlocking of the Klixon
thermo switch
Whether the Klixon thermo switch has trig-
gered, may be detected by a passage mea-
surement (usually, when overheat is
encountered, the thermo switch/es trigger).
Unlocking is accomplished by pressing the
unlocking pin located between the electrical
connection contacts of the Klixon switch (see
fig. in section 9.11).
9.11 Thermo switch replace-
ment (for heater element)
A:Thermo switch
B: Unlocking button for thermo switch
C: M4 Mounting nut (2x)
D: Lock washer (2x)
E: Washer (2x)
F: Seal
G: Flat seal (2x)
H: M4x10 Flange screw (2x)
I: Cylinder cover (7)
J: Capillary tube (attached to up to 3 heater
elements)
K: M4 Mounting nut
L: Flat seal
M: Klixon thermo switch
N: Unlocking pin
Removal
»
Remove and open the steam cylin-
der as described in “Removing and
cleaning the steam cylinder” section.
»
Remove wiring of the thermo switch
from connector terminals (mark
positions for reclamping).
»
Detach capillary tube (
J
) retainer
clips from heater element(s).
»
Separate capillary tube from heater
element(s) (4).
»
Unscrew the two screws (
H
) holding
thermo switch in place.
»
Pull out thermo switch upwards off
steam cylinder cover.
3OHDVHQRWH
I
J
M
K
L
H
F
E
D
C
B
G
N
A
