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Fault
Possible cause
Troubleshooting by
operator
Troubleshooting by
electrician/manufacturer
The kiln
switches off
before the end
temperature is
reached.
Thermocouple not
working.
Check the thermocouple for
visible damage.
Check the thermocouple and
replace it if necessary.
Control unit not working.
See the next section.
-
The kiln
switches off
shortly after it
has started.
Door switch misaligned.
Check the door switch.
Adjust the door switch.
Fuse at building's mains
connection has tripped.
Check the fuse on the fuse box
at the building's mains
connection.
Check the building's mains
connection, fuses and the
current consumption of the kiln.
Electrical wiring faulty.
-
Check the electrical wiring.
Thermocouple not
working.
Check the thermocouple for
visible damage.
Check the thermocouple and
replace it if necessary.
Table 38: Kiln faults
14.4.
Fault: Control unit
Fault
Possible cause
Troubleshooting by
operator
Troubleshooting by
Qualified electrician
The control unit
cannot be
switched on.
The kiln is not supplied
with electricity.
See the previous section.
-
The control unit cable is
not connected to the kiln
or the connection is
incomplete.
Check the cable connection
between the kiln and the control
unit.
Check the cabling between the
kiln and the control unit.
Special: Carry out a continuity
test and a cable break test,
check for faulty contact parts or
test for contact resistance
outside the tolerance.
In the control unit, there is
a fuse that has blown and
must be replaced.
See the instruction manual for
the control unit.
-
The control unit cannot be
put into operation due to
device protection (e.g.,
overtemperature)
See the instruction manual for
the control unit.
-
The control unit
is showing an
error message.
-
See the instruction manual for
the control unit.
-
Table 39: Control unit faults
14.5.
Fault: Replacing the kiln micro-fuse (ELS without switch cabinet)
If the kiln cannot be switched on and other malfunctions are excluded, replace the fuse on the back wall of the kiln.
Required spare part:
Micro-fuse T 2 A
ROHDE item no. 705080
Summary of Contents for ELS 1000 S
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