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HTP EFT Boiler Whistle
Entrinsic
Member Posts: 3
Hi all, looking for some help solving a whistling mystery with an HTP EFT-199 gas boiler.
Was originally installed in 2013 as source for hydronic heating system, all worked wonderfully until 2021when the blower fan failed and was replaced, for the last 11months no problems.
Had another F13 fault and was directed by HTP tech support to replace the blower fan again, seemed to fix the problem with the boiler not firing, but now have a horrific whistle when the boiler is firing at 40-60% (approx 2000-3000rpm fan speed), but no whistle
above or below this range.
above or below this range.
Have checked gaskets on blower door, cleaned heat exchanger as well
as intake and exhaust piping, no improvement. HTP has recommended replacing the blower door refractory, but at $500 Canadian for the part I’m looking for other ideas before taking the flyer that may or may not work.
as intake and exhaust piping, no improvement. HTP has recommended replacing the blower door refractory, but at $500 Canadian for the part I’m looking for other ideas before taking the flyer that may or may not work.
Intake and exhaust are 3-4 feet long and the whistle is louder outside than inside, Noise is irritating the neighbours - any ideas?
Whistling seems to be loudest (screwdriver to the ear) at the fan and Venturi, but marginally so.
Whistling seems to be loudest (screwdriver to the ear) at the fan and Venturi, but marginally so.
Thanks in advance!
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Comments
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Is CSST used in the gas line?Bob Boan
You can choose to do what you want, but you cannot choose the consequences.0 -
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Thanks for the reply.Gas line is hard pipe to the gas valve and then a short section of CSST from valve to the Venturi.I do not believe a combustion analysis was done after the blower was replaced (either time).0
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Thank you very much for the suggestion. I will see what I can find my my area (Calgary, Alberta). If there are any suggestions, happy to take a recommendation.0
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Try try the contractor locator on this site.Bob Boan
You can choose to do what you want, but you cannot choose the consequences.0 -
The area rep or the wholesalers generally know the best contractors in an area.Entrinsic said:Thank you very much for the suggestion. I will see what I can find my my area (Calgary, Alberta). If there are any suggestions, happy to take a recommendation.
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0
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