28 si mk2 worcester

  • Thread starter Thread starter hav it
  • Start date Start date
H

hav it

hi all
has anyone had the problem with pump running constant and lock out flashing.
 
boiler was cold, it resets for about 2secs then pump runs constant and light flashes fast then slow.
 
Pcb,s are a disaster in these, remove fan plug and try , if 240v on board ,check fan, if no 240V present 99% chance its the board thats goosed. 9 out of 10 faults Ive repaired are the boards on these .
 

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