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Can't turn heating on - temp malfunction


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The attached pictures show the LCD control unit located in my living room. All other rooms have a Daikin remote control which I can use to turn the heating on/off.

Unfortunately, the living room's heating can only be turned on/off via this LCD panel which is currently not responding and shows incorrect room temps of 48.9 degrees celsius.

I have restarted the whole system several times to no avail. I am able to control the lights in the living room without any problem so presumably not a wifi issue and all the other rooms can have their heating turned on and off with the daikin remotes.

How can I fix this? Alternatively, is it possible to rewire the LCD panel and control the heating in the living room with a simple wired thermostat; the kind honeywell made for example?




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3 hours ago, chopedogg88 said:

Looks like the driver in your project is for Honeywell Hawk - not Daikin.  Was the HVAC system changed from Honeywell to Daikin at some point?   If so that would explain why its no longer connected/working.

48.9 or 49 (depending on the driver) is the default temperature displayed on some thermostat drivers (in Celsius mode) when there is no valid connection.  That would tie in with the fact that the driver and the system are incompatible…

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