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Maintenance and Service

Exam revision materials for Plumbing Level 2&3 and ACS Gas Safety test

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Hot Water Cylinders

Dimplex

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S960134NU Thermostatic Cartridge

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Dimplex SCX175i - Heatrae Sadia 6 bar Pressure Relief Valve 312469 water leaking

Dimplex SCX175i - Heatrae Sadia 6 bar Pressure Relief Valve 312469 (O-Ring/Grub Screw) water leaking from the tundish

  • The pressure relief valve is faulty and its a part of Caleffi Combination Valve
  • The cylinder bubble top has gone and need recharge
  • Drain the cylinder and open the Temperature and pressure relief valve to recharge the cylinder
  • Dismantle the Pressure relief valve and unscrew teh plastic cartridge and check the saddle for any damage
  • Very often the saddle deteriorates
  • Repalce the Pressure relief valve: Heatrae Sadia 6 bar Pressure Relief Valve 312469 
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