For many months now my GF has cut out at around 80C - the temps got progressively lower. I got around this by transferring wort to another boiler, boiling, then transferring back to GF to chill. Yesterday, when I was doing the cleaning cycle, the heater element did not come on at any setting. Earlier this year @Hoddy suggested that in such circumstances it is the SSR that has probably failed. My GF is about 3.5 years old and yesterday was the 107th time of use. I don't know what an SSR is, yet alone what steps to take next. Does anyone have any ideas? Is there still such a thing as a "Grainbrother", for instance?