Found the mag TCO open because of a loose connection. Bypassed and found the unit operating normally. UNIT NEEDS A HARNESS AND TCO.; ordrng 1 WB18X29712 (Harness) and 1 WB24X21307 (Mag TCO)

Customer states the unit will sometimes not reach its set point. The thermometer they have in the oven does not reflect the temperature the oven shows 350 but their thermometer says different. Sometimes preheat temps are not met but at higher temperatures the unit can surpass the lower set point. The voltage to the unit is 245 vac between line 1&2 this does not drop out under load. The unit never reached its set temp for the calibration test. 7740760290; ordrng 1 W11261167 (Copernicus) and 1 W11600373 (UI)

"Adjusted cabinet and doors so,the mullion would operate correctly and the door were aligned."

Igniter open. Replaced and tested. Unit checks ok.

Rome off blower wheel to replace motor and blower.