Fault: Kiln; Troubleshooting By - Rohde ELS Serie Manual De Instrucciones Original

14.3. Fault: Kiln

Fault
Kiln not The kiln is not supplied
working. with electricity.
Kiln not heating. Kiln door is open and the
and the safety switching
element is activated
(Protective function:
The kiln does not heat
when the door is open.)
Safety switching element
not working. Does not
release because the
switching signal is absent.
Safety switching element
not correctly adjusted.
Electrical wiring faulty.
Thermocouple not
working.
The control unit cable is
not connected to the kiln
or the connection is
incomplete.
The kiln only
The kiln has been loaded
heats up very
with more products than
slowly or the
permitted.
entered
Defective heating element
temperatures
(Breakage or no longer
are not
efficient due to age).
achieved.
Thermocouple not
working.
In the case of a multi-
phase power connection,
one or more phases not
working.
The kiln
Power failure.
switches off
before the end
Door switch misaligned.
temperature is
Heating elements have
reached.
worn out.
Thermocouple not
working.
Possible cause
1. Switch on the main switch of
the kiln.
2. Check the main circuit
breaker.
3. Check the connection of the
power cable to the building's
mains connection.
Close the kiln door.
-
-
-
Check the thermocouple for
visible damage.
Check the cable connection
between the kiln and the control
unit.
Remove some of the ware so
that the weight of the items is
within the permissible limits.
Check the heating elements for
any visible breakage or ageing.
Check the thermocouple for
visible damage. Also, check the
measuring circuit cables up to
the controller for breaks.
Check the fuse on the fuse box
at the building's mains
connection.
Switch the kiln on again and
continue operation.
Check the door switch.
Check heating elements for
wear, breakage or ageing.
Check the thermocouple for
visible damage.

Troubleshooting by

operator
133 / 492 - EN -
Troubleshooting by
electrician/manufacturer
1. Check the micro-fuse in the
electrical box of the kiln (see
next section).
2. Check the building's mains
connection, fuses and the
current consumption of the kiln.
-
Check the safety switching
element.
Adjust the safety switching
element correctly.
Check the electrical wiring.
Check the thermocouple and
replace it if necessary.
Check the cable connection
between the kiln and the control
unit. Replace defective
components.
-
Replacing defective heating
elements (it is always
recommended that you replace
all heating elements to achieve
an even temperature
distribution in the kiln).
Check the thermocouple and
replace it if necessary.
Check the building's mains
connection, fuses and the
current consumption of the kiln.
-
Adjust the door switch.
Replace heating elements.
Check the thermocouple and
replace it if necessary.