Common Faults with Gledhill Electramate A-Class

Common Faults and Troubleshooting for Gledhill Electramate A-Class System

Note: All repair and maintenance tasks must be performed by a qualified engineer. The contents below have been extracted from the following provided by the manufacturer.

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Fault Categories:

  1. Unsatisfactory space heating.
  2. Unsatisfactory hot water service.
  3. Noisy system.

Causes of a 'Noisy' System:

  • Noisy heating pump operation:
    • Check system pressure (minimum 1.0 bar when cold) and vent if needed.
    • Adjust heating system pump speed as necessary, maintaining a temperature difference of about 11°C.
    • If noise persists during heating mode only, check and adjust the system bypass if applicable.
  • Noisy electric boiler/heater operation:
    • On the 9kW model, verify flow rate through the integral electric boiler by measuring the temperature rise across it. Increase pump speed if temperature rise exceeds 11°C.
    • Ensure system pressure is at least 1.0 bar when cold and vent if necessary.
  • Noise when hot water is opened:
    1. Check system pressure (minimum 1.0 bar).
    2. Verify electric boiler/heater functionality.
    3. Ensure space heating load does not exceed unit specifications.
    4. Confirm flow temperature is at least 70°C.
    5. Check operation and settings of programmable room thermostat.
    6. Increase pump speed to establish a temperature difference of 11°C if some rooms are not adequately heated. Balance the system/check TRVs if necessary.

Powerflushing/Cleaning:

  • Isolate the ElectraMate appliance from the heating system before powerflushing to avoid damage.
  • Always follow the manufacturer's instructions for powerflushing equipment.
  • If uncertain, consult the Technical Helpline.

Causes of 'Unsatisfactory Hot Water Service':

  1. Check the F & E tank level and top up if required.
  2. Verify electric flow boiler functionality on the 9kW model.
  3. Confirm the store is charged to the correct set point temperatures as per commissioning guidelines.
  4. Ensure the hot water plate heat exchanger pump starts and stops correctly with tap usage.
  5. Check for air lock or cavitation in the plate heat exchanger pump.
  6. Ensure hot water outlet temperature remains stable during varying flow rates.
  7. Verify space heating load does not exceed specifications and ensure occupants understand how to use the programmable room thermostat.
  8. If necessary, replace heat exchanger if impaired by scale. Consider installing an inline scale inhibitor if water hardness level exceeds 200ppm (mg/l).

By addressing these potential faults systematically, technicians can effectively troubleshoot the Gledhill Electramate A-Class system, ensuring optimal performance and customer satisfaction.