over heating

Hi, over the last couple of days we’ve come home and found our house at 26 to 27 degrees. But our thermostats are set to factory settings which whilst during the day should be 16 degrees. I’ve looked through the settings and nothings changed and have no idea why the house is randomly heating...

Have 10.8Kw shower attached to 50A Mk Switch. Outward apperance of switch is fine but switch used to get warm during use. Noticed neon light flickering so pulled switch, peeled wires back to new and replaced with another MK 50 A dipole switch. Photos show N2 terminal was overheating and had...