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7.4.
Error messages
Display
Description
Err. 0
Internal data error
Temperature increase too low despite
heating at full power:
• Kiln does not heat or heats too slowly
Err. 1
• The kiln temperature is not increasing
as required.
•
The kiln has been on full power for 15
minutes, but the temperature has not
increased by at least 2 °C.
Err. 2
Thermocouple or wiring for thermocouple
disconnected
Err. 3
Thermocouple with reversed polarity
Kiln cools down too slowly:
•
Kiln does not cool down or cools down
Err. 4
too slowly.
•
The kiln has been on zero power for 30
minutes, but the kiln temperature has
not fallen by at least 1 °C.
Set kiln temperature exceeded:
Desired temperature
Below 100 °C
Err. 5
More than 100 °C but
less than 200 °C
More than 200 °C but
less than 600 °C
More than 600 °C
Err. 6
Maximum duration of firing process
exceeded
Err. 7
The maximum room temperature
exceeded
Cause of error / Troubleshooting
Technical service required:
The controller cannot be repaired on site and
must be sent to the manufacturer for repair.
•
Kiln door or lid not completely closed.
•
Defective door switch
•
Door switch needs to be adjusted.
•
Heating element circuit open
•
Heating elements too old
•
Electrical power phase failure
•
Contactor failure
•
Get thermocouple and wiring checked.
•
Replace thermocouple if necessary.
•
Kiln temperature apparently below -40 °C
•
This is an installation fault.
•
Get wiring checked.
•
Contactor failure (contacts possibly welded)
•
Thermocouple disconnected or resistance too
high
• The kiln temperature has exceeded the desired
temperature by a preset limit.
• The cause of the over-temperature must be
Overshoot allowed
determined.
+ 60 °C
• The contactor is not working (contactor
+ 50 °C
hangs/replace contactor).
+ 30 °C
Technical service required:
Do not use the kiln until the cause has been
+ 20 °C
clarified!
• The duration of the firing process exceeds a
limit value set in the factory.
• Notes on Error 6:
⇒ The error is disabled at the factory.
⇒ If you want to set a maximum firing time,
•
The internal temperature of the controller has
exceeded a factory-set limit value.
•
Factory-set to 50 °C.
•
Possible causes:
69 / 384 - EN -
please contact ROHDE Service.
Insufficient or faulty ventilation of the kiln
chamber
Operating location too small
Ventilation grille blocked
Exhaust air flap not closed
Controller mounted too close to the kiln
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