Boiler Fault Finder

Electrical Safety Checks

240 V TEST

 240 V TEST Connect boiler to power supply via 3 pin plug top or inserting 3 amp fuse into switch En
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Mains voltage and polarity tests

Mains voltage and polarity tests: This test will ascertain the correct polarity between L and N alth
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Resistance to Earth

Resistance to earth: (dead test) This test confirms the integrity (resistance) of the insulation bet
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Short Circuit

Short circuit: (dead test) This test will ascertain the integrity of the internal resistance of the
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Mains Voltage Test

Mains voltage test: (dead test) This test isolates the power supply serving the boiler, so as safe,
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Earth Continuity Test

Earth continuity test: (dead test) This test will ascertain whether the earth continuity between the
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