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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

Vaillant ecoTec Plus 937 - Hot water pump 0020039793

Vaillant ecoTec Plus 937 - Hot water pump 0020039793 doesn't work

When this particular boiler does not produce any hot water but the heating is working the hot water pump might be faulty.

Replacement part number is 0020039793

2019-06-02

Boilers

Potterton Prforma 24 - intermittent clicking and hot water

Potterton Prforma 24 - intermittent clicking and hot water

Remove the cable from the gas valve and check resistance.
​Between top 2 pins and bottom 2 pins on the gas valve resistance should be around 2 kOhms. Between top and bottom pin resistance should be around 5kOhms. If no resistance then replace the gas valve.

2019-06-02

Showers

Hansgrohe Water is lukewarm

Need to replace the thermostatic cartridge

Isolate cold and hot water supply to the shower valve

The cartridge will require temperature adjustment after replacement

The part number is 94282000

2019-05-11

Boilers

Alpha CD35C - No hot water, heating start working when hot tap is opened

The diverter valve might be faulty or the diverter valve motor id broken. Disconnect the motor from the valve and open and close hot water tap. If the metal part in the middle doesn't move then replace the motor.

The part is Diverter Valve Motor 1.018064
 

2019-05-11

Showers

Swadling The Invincible - Ultra SC50-T32 thermostatic cartridge assembly

Swadling The Invincible - Ultra SC50-T32 thermostatic cartridge assembly

  • There is no hot water coming from the shower valve
  • The thermostatic shower cartridge is faulty and needs replacement
  • Need to turn off the water supply.

2019-01-13

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