Maple chase thermostate 98265. Have worked perfect till today. Low battery display. I turned ac/heat to off position turned fan to auto. Removed the two batteries and replaced with brand new one. NOW nothing, no display in the small screen no fan no cool. HELP it over 100 degrees dwon here and I have elderly people living with me

Unable to find any manual for this unit. Most electronic thermostats have a reset button someplace, may be on the printed circuit board and need a fine tip to press.

My Maple Chase Thermometor does not start automatically, and the number 2 flashes periodically. What can I do?