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gas-fired water boiler does not start;
Hi, my gas-fired water boiler does not start; the pilot is fine, so gas is there, thermal fuse is fine. Pilot is automatic (i.e. not permanent & starts only when needed) so control is fine. It seems the gas does not flow thought the main pipe but I do not know why.
Pilot goes on for 15s then goes off.
i would need help to figure out what the issue is.