Similarly, my CH is currently turned off, and Melcloud shows this.

@morgan

Yes, "Prohibit" was the word for when switched/ timed off.

So, apparently, my Melcloud is currently wrong for heating and possibly for DHW, but I am not sure if your DHW is currently switched on.

@davidalgarve My DHW is switched on.

It would seem that I have a problem (at least one!) in that both my heating and DHW are showing "Idle" when they are effectively timed off and the should be showing "Prohibit"

@davidalgarve 

If they are 'off' because of a timed schedule, and this is their time to be 'off', it might be that it is actually in its 'idle' mode. I don't know that for sure, but in my post above, my CH is turned off in the main controller as opposed to a schedule, hence 'prohibit. The DHW is turned on but is showing 'idle' due to the temp still being above the reheat temp.

It will only show 'prohibit' if turned OFF. Not TIMED to be off. So far as I am aware.

I don't have schedules set. It's either on or off 24/7 or in Holiday Mode.

@morgan I am finding it hard to accept that the display should read "Idle" when either the heating or DHW is "OFF", because I am reasonably sure that it showed "Prohibit" for this condition before the wireless control was added. It would also mean that no difference is recognised between "Up to temperature" and "Switched off"

I am still hoping for advice on the second point i.e. the fact that MelCloud (32C) is not reading the temperature of the Wireless Controller in the lounge (26C) and as such it cannot control - see photos.

I feel certain that Melcloud is still displaying the Hydrobox temperature 32C, but cannot recall where this selection takes place in the menu.

On the FTC5 I think this requires the dip switch on the control board switched to on when you plug in the external receiver. SW1-8 from memory. It then allows the external room thermostat to control the system.

Well it has now become obvious that the installation of the Wireless Controller is a complete washout.

Almost certainly, Melcloud is still seeing the Hydrobox temperature rather than the room temperature from the wireless controller.

More seriously, the heat pump is running at random times (often during expensive daytime tariff), totally disassociated with the schedule times set on the FTC6. This is mostly heating DHW, but on occasion has been trying to heat the house (when we are experiencing record ambient temperatures!) through towel rail etc, which do not have thermostats.

So a most unwelcome fight to unfold just to get back to where we were before they carried out the work.

Update: I have found that the contractor had changed one of the options to "Forced DHW", and this was probably part of the problem. Having switched this off, I am back to logical operation with Weather Compensation and early morning scheduled DHW.

I have not had any offers of support, but I wonder if someone could confirm my thoughts on the correct selection of thermistor for use with the wireless controller.

Operating with Weather Compensation (without any room thermostat), under "Room sensor setting", I have "Room RC1" (single zone) set to "Main Remote Controller". This meant that MelCloud read the temperature in the FT6 but it did nothing.

With the wireless controller in place, am I correct in assuming that, Room RC1 should be changed to read "TH1" and will therefore read the thermocouple in the PAR-WT60 wireless controller?

Hi David

We have an FTC7 but the settings seem to be similar to an FTC6. Our room sensor settings are:

Zone sensor selection sets zone 1 to RC1

Zone 1 programme sets programme 1 to RC1 from 00:00 (i.e. all day). 

Looking at the FTC6 manual I'd guess Room RC zone select should be zone 1 and the Sensor setting for Zone 1 should be RC1 and a time of 00:00.

Hope that helps! 

@robs Hi Rob,

I really appreciate your information, and this appears to me to be much clearer than that which is given in the manual under: "4 Customising your Settings for Your Home".

It seems that I was on the wrong track in suggesting TH1 and now recall that this is the thyrister in the FT6

However, just to be absolutely sure, before I attempt a second installation of the wireless remote, I am attaching photos of the 3 steps in making the settings. (Incidentally, I have left the "Time Zone" setting as was and this seems to be the same as yours, but I don't understand the significance of this in relation to sensors)

I would be grateful for your comments.