Having trouble with out eight year old Trianco Utility. Initially we were getting many lockouts (shuts down with warning light, which needs resetting) and bad ignition. After the service gent replaced the oil pump (twice, the first one failed) and sensor and disconnected the Tiger Loop, these went away. He also replaced the coil/transformer but concluded this was not at fault and re-fitted old unit. Had been regularly serviced previously and we do have confidence in the current company.
Lockouts/bad ignition have gone away. Problem now is that the flame extinguishes briefly after 5/10mins running, leaving the oil pump still running, and then reignites shortly after. This cycle occurs continuously.
The boiler man now thinks the balanced flue is leaking fumes into the air inlet, which extinguishes the flames. This sounds a convincing argument, except I hadn't noticed this problem before the latest round of changes. When he runs it with the air pipe disconnected from the flue (and the flue inlet blocked), the problem seems to go away.
Problem is, so much has changed and before I add significantly to an already-high bill, I want to be sure. Not sure extent to which the problem is caused by:
- the flue (and I assume I hadn't noticed it previously), and/or - the new pump, more powerful than the OEM (a Danfoss 11L3, now a 21L3), and/or - the removal of the Tiger Loop.
Anyone had this experience before?
Happy New Year