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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

Boilers

Nibe F205P - hot water low pressure after 1 minute

Nibe F205P heat pump produces very low pressure hot water.
Hot water pressure is strong when you first open a tap but then gradually reduces to a trickle.
The fault is a Pressure Reducing Valve (PRV) is faulty.
Replace the PRV. Replacement part is - 520-467-0829 Pre-Set at 3.5 Bar - 330 Series Domestic Pressure Reducing Limiting Valve with Cold Take Off - PRED330006 
‚ÄčIsolate water from the mains stop cock before replacing the part.

2017-07-09

Showers

Bristan Prism - No water. Faulty Flow Diverter Cartridge (APT 04895)

Bristan Prism shower valve no water is coming out when turning the flow handle.
The Diverter cartridge is faulty or a Spline is weary. Repalce the part.

Part number is Bristan Prism Spline Adaptor (8/20 To 11/30) (mz) APT 04895

2017-07-09

Boilers

Alpha CB28x - Red and Amber light are on - Faulty PCB (1.017118)

Alpha CB28x combination boiler  - No hot water, no heating

  • Red and Amber light are on
  • Power goes to the Pump
  • No power goes to the Fan when heat demand is present
  • Faulty PCB
  • The part number is - 1.017118

2017-05-21

Boilers

Alpha CD50 - no lights - Faulty PCB (1.027267)

Alpha CD50 has no light on the front panel and both heating and hot water don't work

  • Check the PCB fuse. Replace if necessary
  • If after replacing the fuse boiler makes a loud noise from a transformer (located in the burner chamber behind the fan) then PCB is faulty
  • Replace PCB. The part number is 1.027267

2017-05-06

Boilers

Vaillant ecoTec plus 831 - F.75 error message - faulty expansion vessel (181051)

Vaillant ecotec Plus 831 shows an error code F.75 after few minutes of trying to ignite

  • Check the pressure sensor and the pump. If they both are fine then look at the expansion vessel
  • Open a recharge nipple and press. If water is coming from the vessel then the expansion vessel is faulty and needs replacement.
  • The part numbers are: Vaillant Ecotec Expansion Vessel 181051 

2017-05-06

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