Turbochef oven will not heat up to desired temp - low heat alert

May want to give them a call for tech assistance.
call
800.90TURBO
or
+1 214.379.6000

Manual...
https://static.restaurantsupply.com/media/documents/manual/turbochef/turbochef-hhc1618-std-36_208-60-1-owner-manual.pdf

ur high limit trip because ur heater overshoots the program setting for the temp replace ur k4/k5 solid state relay for it controls ur temp for the heater.

the mag's only activate while in cook cycle, it will be hot as normal with toasted subs that are cold in the center.
AMP draw the Mag's and ohm the Mag thermal couples

the problem with f8 like you have said LOW HEAT
, IF the oven does not warm up in time , which is usually 8 min , it goes into f8 fault code
now please check the hi limit button , on the back of the oven , left hand side, bottom corner, if it reset and starts heating, please check bottom element and temp reading IR , IF it rises very quickly and the elemnt is glowing red , please switch off the unit at the power point , you have problem with the solid state relay, if the temp is slowly rising , then you might only have an issue with the hi limit reset button thermostat, FIRST JUST CHECK THE RESET BUTTON

you could have a problem with the microwave circuit. That would really be the only thing preventing the food from heating internally. I would call turbochef and call for warrenty service again. Is the bread comming out nice and toasty. If the blower for the convection circuit is weak or sticking this also cause the same effect of not properly cooked food.

So check microwave circuit and also check the blower.

Hope this helps if you need more in depth advice feel free to ask

F8 means Heat rise low the oven failed to warm up in a predetermined time period. First check for problems with the blower and then check the high limit thermostat to see if its tripped. If these are okay call a repair tech because you will need to check the relays for problems

SOUNDS LIKE THE TERMOSTAT IS FAULTY REPLACE IT AND YOUR OVEN SHOULD WORK FINE.

there is a high limit reset button on the back of the oven .reach around left side if you are facing oven. if that is it but it trips again you have other issues. if that is not it you have other issues possibly k4 k5 ssr or element problems

YOU HAVE A BAD ELECTRONIC RANGE CONTROL OR ERC

If you need further help, reach me via phone at https://www.6ya.com/expert/marlon_56d9a24f02585258

After it drops temperature, how do you get it back to the desired degrees? It sounds like the thermostat isn't keeping up.