The fan on our Classic FF260 was replaced last week. Boiler fires up until water reaches internal boiler temperature then it shuts down. Pump continues to run (room stat calling for heat) and then boiler cuts in again. Up to now, all is OK. When boiler is hot and burner fires up, a couple of seconds later a high pitched sound comes from boiler, similar to that of a pure sine wave. This only lasts for 1-2 seconds. Apart from this, everything else seems fine. Any ideas?
Classic FF260 fan
- Thread starter tiggy22
- Start date
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Fan blades could be touching body of fan when it gets hot and expands
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