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Plumbing and Gas News

Practical tips for maintenance, service and repairs of plumbing and gas appliances

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Maintenance and Service

Showers

Porcelanosa Noken NK - CICE France OPTIMA 40 TH F Thermostatic Cartridge

Porcelanosa Noken NK - no hot water and the temperature handle is very stiff to turn.

  • Replace the thermostatic cartridge
  • The replacement part is: CICE France OPTIMA 40 TH F Thermostatic Cartridge
  • Isolate the water to the shower valve before replacing the cartridge

2017-04-06

Boilers

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

2017-03-25

Boilers

Vaillant ecotec Plus 824 - Fault F.75 - Faulty expansion vessel (181051)

Vaillant ecotec Plus 824 looses pressure after using heaiting.

  • When you turn the heating on after the short period of time the pressure level goes up to red zone (3Bars)
  • High pressure forces a Pressure Relief Valve to open to release the excessive pressure from the system as the water expands when heated up (up to 4% at 100ºC)
  • An expansion vessel contains a rubber membrane which separates a pressurised air and central heating water.
  • Annual boiler service is required to check and re-pressurise the expansion vessel up to 1 bar (with a bicycle pump). Drain the boiler water before recharging.
  • If water starts leaking from the expansion's vessel nipple then it is faulty and needs replacement. Very often it needs replacement together with a Pressure Relief Valve
  • The part numbers are: Vaillant Ecotec Expansion Vessel 181051 & PRV 178985

2017-03-05

Boilers

Keston Qudos 28S - Faulty fan (Q10S301001) Error code E28

Keston Qudos 28s - no heating or hot water. Error code E28

  • The boiler pump is working but after 5 seconds the boiler goes into a lock out with an error code E28 which means faulty fan according to the manufacturer's instructions
  • Open the boiler casing and reset the boiler
  • Check the voltage to the boiler fan. If voltage to the fan is 240V then replace the fan
  • Check resistance between neutral and live terminals on the fan. A working fan should have around 40 Ohms resistance. A faulty fan will have around 2 Ohms.
  • The part number is Q10S301001 for Keston fan for this boiler
  • Completely isolate the electricity to the boiler when replacing the fan

2017-03-03

Boilers

Worcester Highflow 400 RSF - No heating. Faulty diverter valve (87161207390)

Worcester Highflow 400 RSF - No heating. Faulty diverter valve (87161207390)

  • The boiler is constantly running and goes into lock out every so often
  • The hot water is working bu no heating
  • Open the boiler cover and check the diverter valve for leaks
  • Does the diverter valve operate? NOTE: This failure would cause cold water at the flow outlet and the boiler will cycle on the heating control stat.
  • Open a PCB casing and check if there is 230V at pin 3 of terminal X7?(Brown wire)
  • If NO Replace the control board if YES Replace the diverter valve
  • The replacement part numbers: Worcester 87161424820 D/valve Now 87161207390 : Bosch
  • Driver Board Pump Over-run 87161463120

2017-03-03

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