VERDER CARBOLITE GERO VCF 12/10, Installation, Operation And Maintenance Instructions

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For replacing parts, panels may need to be removed. To remove the bottom panel it is
necessary to turn the furnace onto its back: do this carefully using two or more people.
7.4 Temperature Controller Replacement
Refer to the controller instructions for more information on how to replace the
temperature controller.
7.5 Fuse Replacement
Fuses are marked on the wiring diagram with type codes, e.g. F1, F2. For more
information on fuses refer to section 10.0.
Depending on model and voltage, the different fuse types may or may not be fitted.
If any fuse has failed, it is advisable for an electrician to check the internal circuits.
Replace any failed fuses with the correct type. For safety reasons do not fit larger
capacity fuses without first consulting Carbolite Gero.
The fuses are located at the cable entry point. Remove the back panel or control box
back panel to gain access to the fuses.
7.6 Thermocouple Replacement
Disconnect the product from the electrical supply, lay the product on its back and
remove the bottom panel.
Make a note of the thermocouple connections. The negative leg of the thermocouple is
marked blue. Compensating cable colour codings are:
thermocouple leg colour
positive (type R) orange
negative white
Disconnect the thermocouple from its terminal block and withdraw the thermocouple
from its sheath by bending the metal tag or releasing the screw to release. It is also
advisable to remove the sheath and shake out any broken pieces of thermocouple.
Re-assemble with a new thermocouple, observing the colour coding, ensuring that the
thermocouple is not twisted as it is being inserted and that the metal tag is bent back to
grip the sheath.
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7.0 Repairs and Replacements