Honeywell Sundial rf2 pack2

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This is where I think i have a fault with my programmer/stat.
In manual it says
Enquiry Mode
As the heart of your system, the ST9420C has access to temperature information from the other system components, and allows you to enquire about this information

If i go into this it tells me Room temp is 19.5 deg and room set temp is 19 deg.
This may explain why it keeps switching off as the DT92E is set to 22.5 deg and room temp is at 19 deg

It seems the controller is reading different information than the stat therefore over riding it

Or am i misinterpreting what it means?
 
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My programmer thought my temp set point was 19 degrees, so kept shutting down at that despite stat being higher, now perfect. Should have been bound from new, only a few weeks old
 

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