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Last seen: Oct 25, 2026
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...
I could do the change, I do have an electronics background. But due to health reasons, I am just not confident in doing such things. He does have t...
@jamespa No its a chargeable visit. So be at least £200.
@jamespa I have good news. I now have the instructions for: Thermo Off. This can be changed to 2C or OFF. I think I will go with the 2C option....
@jamespa Looking at setting up the weather compensation. I know from the building that 32C is fine for temperatures below 0C and 5C. But don’t k...
JamesPa Below is the plot of yesterdays run (30 Nov). Surprise NO THERMO OFFS. Ran for 10.5 hours. Im afraid it's a fluke!!! I have always expre...
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