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IVT Greenline high pressure switch and electrical cassette errors

 
Grounds Source Heat Pump (GSHPs)
Last Post by tdudgeon 6 hours ago
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 tdudgeon
(@tdudgeon)
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Joined: 6 hours ago
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Topic starter 04/05/2025 4:47 pm  

I have an IVT Greenline HT Plus C heat pump that is continually having errors when heating the hot water cylinder.

Both “Electrical cassette” and “High pressure switch” errors are happening several times a day. Acknowledging the error lets the heat pump continue, but clearly something is wrong. Previously I had problems with “High HTF Delta” that seemed to be this problem, which seemed to be fixed by changing the pipes.

Any thoughts on what needs to be done?

This topic was modified 4 hours ago by Mars

   
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