Replacing the Heating Element Block

Preparation for Replacing the Heating Element Block

– Turn off the boiler’s power supply.
– Drain the water from the boiler before starting the work to replace the heating element block.

  • Step-by-Step Guide to Replacing the Heating Element Block

    1. Carefully remove the front panel of the boiler, avoiding any cable disconnection. 
    2. Disconnect the display cable and grounding cable from the front panel. 
    3. Open the lower part of the boiler casing to access the heating element block. 
    4. If necessary, label the power wires connected to each of the heating element contacts to ensure correct reinstallation. 
    5. Disconnect the wires and jumpers from the heating element contacts.
    6. Unscrew the flange mounting bolts. Be prepared for remaining water to drain from the heating element casing after unscrewing. 
    7. Carefully remove the heating element by lowering it down, avoiding damage to the gasket.

  • Inspection and Installation of the New Heating Element Block

    1. Inspect the inner part of the boiler bulb for defects. If no defects are found, proceed with installing the new heating element.
    2. Place the gasket on the new heating element block. 
    3. Install the new heating element by performing all operations in reverse order. Ensure that all safety precautions are observed during reinstallation.
    4. Fill the boiler with the heat carrier and bleed the air using service parameter P1.

Instructions that will be useful to you

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Checking the Functionality of the Heating Element Block Replacing the Air Vent