Grant oil boiler hunting

  • Thread starter George J
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Grant oil boiler hunting

Grant oil boiler hunting

Hi All,

My Grant Vortex oil boiler is hunting, as in starts and stops, but if I switch my Honeywell clock to either Hot-water or Heating the boiler runs normally. Selecting both results in the boiler hunting.

This problem started when the system was used for the first time since previous winter. As far as I can remember nothing on the boiler, clock or cylinder has been altered.

George

by George J

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