Re my previous post about my Immersion heater failing to heat and my getting the wrong item from
Is there a way of testing immersers/thermostats other than fiting them and seeing if they work ( if they do not you still have the problem of knowing if it is the thermo or the heater that is faulty)
Someone mentioned using a multimeter but can someone explain exactly how you do that please .I'd like to know out of interest if for no other reason . thx Stuart