Can anybody help, noticed that the immersion heater is not heating the water anymore. There are two separate boxes, one to set up timer programmes for the hot water to come on, another that has a boost button for extra heating i guess.
The wires come from each box and there are two thermostat's.
I checked resistance on both which were fine (around 20ohms), I believe this means that the element is fine?
I then turned the power on and checked voltage on both, one read 240V the other read 0.
So does this mean the thermostat that reads nothing needs replacing?
In the pics below you can see the thermostat, but there is a similar 'thing' next to it that I'm not sure what it is? Can anyone tell me? Both the thermostat and the 'thing' have rods poking into the tank. Where should i go from here? As you can tell I'm certainly no expert, i have just been following advice on what to check up until now.
Any help appreciated, i have just been manning up and having cold showers but the girlfriend is starting to nag