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Last seen: Jan 20, 2026
Just to update the thread, I now have a new heat pump!! The Grant engineer came last Monday, and found that there wasn't enough gas in the system so l...
@adamp thanks. I've now spoken to someone from Grant and they are going to send someone out to replace the discharge temperature sensor. He seemed con...
Ok think I'm done tinkering, have gone back to WC mode. Under fixed temp settings the highest it got to was 36, then dropped back to 35/34. @jamespa ...
@jamespa yep mentioned in my previous message I've disabled night mode. It was sitting at 35 for a bit, now up to 36. Although oddly the rads have j...
@jamespa Ok here's an update on today so far. The heat pump has been on since 6am, I have turned up the thermostat. I've taken multiple readings of th...
@jamespa we are not successfully heating hot water either. We thought we were, but have now realised that was only because the immersion was set to co...
@jamespa the readings I have taken so far have been when the heat pump is running (and had been running constantly for multiple hours), so I don't thi...
@jamespa thanks for your reply. It's an R32, exact model is HPID17R32. My reading of the manual is that the error could either be because of a senso...
I forgot to add - when I was taking the flow/return temperature measurements, the outside temperature was reading at 6 degrees.
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