I have a Noma THM303M 5+1+1 programmable thermostat. It has 4 settings for weekdays, 4 for Saturdays and 4 for Sundays. On Saturdays and Sundays I want only 2 settings--raise the heat in the morning and lower it at night. How do I get it to ignore the other two settings. Right now I've set 2 of them to duplicate the other 2 but that seems awkward. Any ideas?

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Originally Posted by Seamonster

I have a Noma THM303M 5+1+1 programmable thermostat. It has 4 settings for weekdays, 4 for Saturdays and 4 for Sundays. On Saturdays and Sundays I want only 2 settings--raise the heat in the morning and lower it at night. How do I get it to ignore the other two settings. Right now I've set 2 of them to duplicate the other 2 but that seems awkward. Any ideas?

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You may also set 2 programs to same temperature but slightly different time. For example P1 at 9:00am, P2 at 9:20am. And P3 at 6:00PM, P4 at 6:30pm.

METT is right on that is what I have done with 1 which I have installed. Seems to work fine.
The problem that I am having is the reseting issue.
I still have not figured it out. It seems a lot of people have this reset to default problem with this noma model.

vacwm

I also have the resetting issue but I found the source of the problem. A relay in your system is probably creating a surge on your 24v system that gets through your thermostat relay and reset your thermostat. I found yesterday that if I manually start the fan relay by shorting the wire connection screw with a screw driver (bad connection that creates spark and surge) is automatically reset the thermostat. This problem should be easy to corrected by adding a MOV (Varistor) on the AC line(+-5$). I will try that this weekend and I will keep you updated. Too bad I'm a year too late...