
Last seen: Oct 23, 2025
The A2A would be mostly if not all free if you have so much PV and a large battery. Mine is most of the year. It'll be cheaper and far quicker to work...
@dowallydrifter Sounds like legionella cycle, normally on a Tuesday if the installer didn't change it. Turn the water off if not using it when away. T...
It'll bring on electric back up heaters if at 55C as they'll work quicker in the winter. Not sure about old ME units but Daikin had a 6 or 9kW back up...
We install mostly A2A for churches and village halls, often due to little use and quick heating required. They will always work out substantially chea...
@grahamf Okay, I assumed you'd had an answer from Grants, I've not come across a Grant HP with its own pump not stopping. Their tech support is good s...
This is often a problem when units are installed under a grant scheme. Some have two or three pumps running all the time! They should always be contro...
@batpred We run our aircon in the summer not just to keep fresh and have a pleasant indoor temperature, but to use up some of the spare energy we gene...
It a ridiculous approach, impossible to have zero disrupt, that means as you say nothing is upgraded, just chuck in another poorly working heat pump. ...
@lch07 They must be wired into the Samsung control panel so they're controlled by it, hopefully thats what your guy has now done.
Is that for annual servicing or is there any specific issues?
@hjd It means the outdoor unit hasnt detected an input or the pcb is defective. Needs looking at by engineer or at worst an electrician.
Good to hear of peoples experience with both your type of systems. Exhaust air work better in warmer climates or situations, over here we often don't...
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