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How To Repair Your Potterton Suprima Boiler.

Updated on January 12, 2014

Potterton Suprima 50.

This article relates mainly to the Potterton Suprima 50 heating boiler and how to diagnose faults with the system. It has to be said that working on gas boilers or any gas appliance is dangerous and should be left to a suitably qualified gas engineer. However, the information I will provide you in this article does not require you to work on gas pipes or burner parts.

Always turn off gas and electricity supplies by using any isolator switches before removing any covers or panels to your Potterton Suprima 50. No liability is accepted for damage, injury or loss as a result of any information provided in this article.


Suprima 50 Boiler.
Suprima 50 Boiler.
Suprima 50 PCB
Suprima 50 PCB

Suprema 50 overview.

Developed in the late 1990s the Potterton range of boilers were made specifically for the new build housing market and many builders chose to use the Potterton range due to their value for money and particularly compact size.

A neat little boiler the Suprima 50 had few faults when new and always worked efficiently. A particular fault often proved to occur after a number of years of use as the printed circuit boards would dry out and the joints of solder within the board would get so dry that electrical faults would occur often causing the boiler to lock out intermittently. Very often the problem would go away for a while then return.

Other than the dry circuit board these boilers were and some still are going strong. I have one still going strong after 14 years of continuous use. The only thing which has needed to be repaired is the circuit board and leads. This was an easy DIY repair and was done for the cost of the reconditioned board which was around £50. Much much cheaper than a new boiler.

Fault diagnosis.

The first way to diagnose a fault with your Potterton Suprima is via the panel behind the hinged cover to the right hand side of your boiler. The first time you get a Lock out on your boiler, meaning that the boiler shuts down resulting in you having no instant hot water and cold central heating radiators.

If you check behind the cover of your boiler there is a small panel at the top with a red light and a green one. A steady green light and your boiler is working normally. Flashing red light means that it is locked out and will need to be reignited by pressing the reset button. This usually fires the boiler back up and should then run normally. When your circuit board is suspect you find that you get lock outs intermittently at first then it happens more often and eventually will not fire the boiler.

Changing the circuit board for a reconditioned unit will be the only thing that will rectify the problem unless you are an expert in electronics and can resolder the minute cracks of solder within the board.

Circuit boards are readily available on the internet and are normally sold on an exchange basis as they are no longer manufactured by Potterton and are obsolete in that sense.


© poshcoffeeco ( Steve Mitchell )

The copyright of the work of poshcoffeeco is protected. Please do not publish any work of Steve Mitchell without first receiving his personal permission. Any attempt to illegally copy his work will be subject to the laws of the land of Great Britain at the time of publishing.

© poshcoffeeco ( Steve Mitchell )

Comments

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  • poshcoffeeco profile imageAUTHOR

    Steve Mitchell 

    6 years ago from Cambridgeshire

    TToombs08 thanks for being the first to comment. I didn't expect any comments from HP members as it is aimed at purely search engine traffic, so I am really pleased you found it of some interest.

  • TToombs08 profile image

    Terrye Toombs 

    6 years ago from Somewhere between Heaven and Hell without a road map.

    A very thorough and well put together guide, posh! Voted up and shared on Chime.

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