Bob for Model Number HBL5450UC/06 Temp control is off. For example, when set to True Convection (325 d) it heats up quickly to 300 then slows way down and or stops. At 300 The oven reads preheat then switches to heating as it struggles to reach the set 325. I then turn up the temp to 340, the oven displays preheat again and starts to heat up again. Lastly, I turn the oven off, set the oven to True Convection (325) , re-start, the oven heats to 340 before I shut it off. Took off sensor and all elements and all checked out. Ordered a new inter-phase board "module control (from you) and did not fix the problem. Repair tech is pulling at straws. Suggestions? Is there another board to replace? Thanks,
Answer Bob, The control module/relay board would be the part that would cause this type of issue other than the wiring or oven sensor. If you test the oven sensor wires at the control board test for 1090 ohms at room temp of 77 degrees. The calculation for when you turn the oven on and test the sensor and wires would be to add 2 ohms for every 1 degree of increase. So it would be recommended to test at the set temperature once it goes to the heating phase. It is possible that the wiring of the sensor could be the issue. Read More... Answered by AppliancePartsPros.com | Thursday, August 4, 2016