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Crimson

@crimson

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Honorable Member

Joined: Jan 16, 2024
Last seen: Nov 25, 2025

Topics: 4 / Replies: 300

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RE: Grant 13kW Aerona3 - issues getting zones to temp

Oh the installed needs to go somewhere, that's for sure! But unfortunately with them contracted by the builder/the BUS etc I've still got som...

4 weeks ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

Sorry I didn't explain the situation fully, the agreement was the work would be done with the installers agreement and no warranty void, as they've wo...

4 weeks ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

I think over the 2 years a lot of pump speeds either side have been experimented, in aim to get solid delta and less distortion, never worked as too m...

1 month ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

So again am in midst of lunacy it seems. Tested system with an inflated W/C of 3.5-4C higher than the installers design. Rooms got to temp (was slo...

1 month ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

So this morning marked 24 hours up for installer. Rooms weren't to temp as I expected. I instructed builder that I no longer wanted the installers o...

1 month ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks James, its honestly hard to keep it together, especially as we’ve slipped into a cold spell. It would have been great to check a fix w...

1 month ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

Oh I know, am just raging, apologies. 2 years has worn me to the bone. However, the temps were measured across the old LLH by the specialist (and s...

1 month ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

Yeah, no idea why he thinks 12L/min is ok. He even showed me it running to 28L-30L/min yesterday. Going round the houses on this stuff. Irony is ...

1 month ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

So here we are, brand new Grant ASHP installed… It's ran over night, panels calibrated. Am not seeing much promise from it, and I'm not surprised. ...

1 month ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

And the saga continues… So today a Senior Grant Engineer attended site… Context: Situation at start of day, Grant ASHP is in P1 error m...

1 month ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Grant 13kW Aerona3 - issues getting zones to temp

Lol. I know they CAN be calibrated, it’s just unclear why the installer chose not to or completely acts like you can’t. Can’t believe I’m s...

1 month ago

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