Overheat warning @ 94C

Hi guys,

Ask ko lang if this is just a thermoswitch issue. Nagpalit kasi ako ng thermoswitch(Tama brand) last 2 weeks. nagswitch on ung radiator fan (w/o aircon) @ 96C pero last night nagoverheat signal ung vios ko w/ aircon @ blower speed 1 tapos bigla din nawala. inopen ko ung phone ko to check sa torque pro ung temp. nagulat ako 94C lang so pinatay ko aircon drive for a while nag 96C then baba ng 93C tapos naulit lumabas ung overheat signal pero wala naman nagiba sa takbo. I checked the coolant and reservoir. di naman nagbawas.

Saka issue ko din is pag sa tanghali ang lamig ng aircon(blower # 3)and the coolant temp is ranging lang from 86C-92C pero sa gabi medyo di malamig ang aircon and temp is umaabot ng 96C with aircon on @ blower # 2. same aircon thermostat din @ 3oclock.

Any thoughts kung ano sira?