240 V TEST

The 240V Test checks boilers for mains power supply to the boiler terminal strip.

240v Warning Sign 240 V LIVE TEST
  • Connect boiler to the power supply via 3-pin plug top or inserting 3 amp fuse into the switch
  • Ensure boiler is on but with all controls off, so there is no demand
  • Set multimeter to correct voltage scale on V AC
  • Firstly put the black lead from the multimeter to the E terminal block on the boiler then secondly the red lead from the multimeter to the L terminal block on the boiler – this should read approx. 240V AC
240v mains test

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