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Maintenance and Service

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

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Heat Lline

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Heat Lline Capriz 28 - faulty PCB (3003202166)

Heat line Capriz 28 Combination boiler goes into ignition lockout with a red flame light on the front panel after an attempt to ignite.

If the boiler is trying to ignite but the flame doesn't stay the the flame sensing electrode or PCB flame rectification device is faulty. Check the flame sensing electrode's position and continuity (use multi-meter) from the tip to the connection port on PCB. If there is a continuity then replace the Pcb

The part number for the PCB is 3003202166 and the part number for the sensing electrode is 3003202102

< Go Back2017-03-25

Heat Lline Capriz 28 - hot water is lukewarm - diverter valve service kit 3003202082

Heat Lline Capriz 28 combination boiler  

Fault description

  • Hot water is lukewarm

How to fix

  • Let the heating pipes to cool down
  • Open a hot water tap on full
  • Touch the boiler central heating flow pipe and notice if its getting hot
  • If its getting hot with hot water running then replace the diverter valve (recommended) or replace the insides
  • Replacement part is Black Nut Kit For Diverter Valve Heatline D003202082 3003202082

PDF - Heat Lline Capriz 28 - hot water is lukewarm - diverter valve service kit 3003202082 - installation instructions

< Go Back2014-12-24

Heat Lline Vizo 24 - Faulty Diverter valve 3003200017

Heat Lline Vizo 24 - the boiler fires up but no heating

  • Turn on heating and touch the hot water heat exchanger
  • If its getting hot when all the hot water taps are closed then a Diverter valve or a motor is faulty
  • Replacement part is Heatline Diverter Valve D003200017 (Replaces Part Number: 3003200017)
< Go Back2014-02-16