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Last seen: Sep 18, 2026
I am so envious, your are so fortunate to have all of the data at your finger tips!!
I didn't run the heating over night. Only just now switched on. All I can add on the defrost is that the refrigerant temperature does drop as it go...
@sim0n0 Thanks
@sim0n0 Thanks. Did you manage to get an evaporator temperature prior to defrost?
James. Yes I have turned off Night Shift.
The outside temperature has tonight fallen to around 0C and I am now in trouble with defrosts. I am seeing just prior to the defrost, an evaporator ...
JamesPa Have you seen anything in the manual about how the defrost cycle works when there is: a power cut, thermal off, demand off, HP start up, etc?
Sim0n0 JamesPa Thank you.
JamesPa You will be please to know that this afternoon WE made the DIL switch change to give us a 2C Thermo OFF time. The change was easy, but stress...
The Thermo Off (not Thermal Off) only relates to the latest SW installed by Hitachi. To change the Thermo Off setting you have to go into the control...
@jamespa The new sw was to prevent rapid short cycles which we were seeing every 3 to 5 minutes. BTW. Heating ticking away at 50% Night Setting. N...
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Degrees of Separation
Latest Posts
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@editor Aargh - Trustpilot. On my journey, Ì contacte...
By L8Again , 8 minutes ago
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RE: Cooling with air to water heat pumps
@editor does that mean you have to have two separate ex...
By mrkfm , 10 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
Posted by: @ian-s Could always use the money saved o...
By Rob of York , 15 hours ago
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RE: Why are ASHP installs so expensive?
And then you look at US electricity prices and weep.
By bornagain , 17 hours ago
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Depends on what controls the pump! Thats the whole poi...
By JamesPa , 22 hours ago
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The positive reviews keep coming in for Britain's Heat ...
By Mars , 2 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
By Old_Scientist , 2 days ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
By JamesPa , 3 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 3 days ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 3 days ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 3 days ago
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RE: Say hello and introduce yourself
@gz00, welcome to the forums. There’s a huge amount of ...
By Mars , 3 days ago
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RE: Home energy storage & battery register
1 fox ess lv5200 batteries, plus 2 more waiting to be i...
By Jimcub , 4 days ago
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RE: Heat Pump deployment statistics: June 2026
@l8again Unfortunately the government is, I suspect,...
By JamesPa , 4 days ago
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