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Ecobee Smart EB‑STAT‑02. 4 heat/2 cool. Heat pump compressor is stage 1 and 2. Aux Gas is stage 3 and 4.
RSM board running external temp, bedroom temp (used to average between thermostat), Duct temp, return temp (they were there so I used them) Humidifier and an alarm relay on condensate pump.
Stage 1=24K btu, 2=36K btu, 3=48K btu, 4=80K btu (never seen stage 4 come on)
I am having problems regulating when stage 1 changes to stage 2.
Installation settings, Thresholds, advanced,
Reversing stage is set to "NO"
Stage 2 temp delta is set to "2"
Stage 1 Max Run time is set to "X"
(manual says The maximum amount of time stage 1 will run before engaging the next state. options are auto (default and 10 to 120 minutes)
In summer I set stage 1 max run time X to auto. This allows thermostat to control switch from 1 to 2. Most of the time my AC never even goes to stage 2, causing longer run times which helps dehumidify.
In winter I set stage 1 max run time X to 10 or 15 min.
Problem is this year when I change the X setting to 10 minutes, the first couple times the heater cycles it runs stage 1 for 10 min, then switches to stage 2.
But than after a while the data shows the heater never advanced to state 2 after 10 minutes.
Yes I am exiting out of thermostat, and settings are saved. I even rebooted it last night.
I made the change yesterday afternoon. Last night it dropped below 30 so AUX (stage 3) was my heat source.
looking at today's data:
9:20 am, stage 1 ran 25 min.
10:05 am stage 1 ran 30 min.
10:55 am stage 1 ran 20 min.
I swear this worked last year, what am I doing wrong?