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    BSA Hotspur Oil Boiler

    Thank you very much Boilerman2, I am a happy man. After your post I removed the filter and the boiler ran ok. After my holiday I fitted a new filter and cleaned the gauze filter in the constant level unit and it has now been running successfully for a week. (When the boiler stopped initially...
  2. I

    BSA Hotspur Oil Boiler

    Thanks for the advice Boilerman2. I did manage to track down a C551A in the USA which I fitted but the boiler still cuts out between 30 to 60 seconds after the ignition spark shuts off. I have checked the C551A by putting the probe on the cooker hob and checked that the circuit changes from...
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    BSA Hotspur Oil Boiler

    Can you tell me where you got your Honeywell Flame sensing Unit, mine has just stopped. The code is C551A. I have the 110,000 BTU/hr Hotspur. It says it is made by Harford-Unical of Cockfosters and was installed in the mid 70's. Thank you
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