Solid State Relay Test
1.Remove the right side panels as outlined under Covers and Panels in Removal and Replacement of Parts.
2.Turn the power switch to the ON position.
3.Check for +5 VDC on input side of
A.If +5 VDC is present, continue to step 4.
B.If no voltage is present, computer control is not functioning properly.
4.Check for 120 VAC at load side of SSR (terminals 1 & 2).
A.If no voltage is present, solid state relay is not functioning properly.
1)Replace the SSR and check for proper operation.
B.If 120 VAC is present, component is functioning properly.
5.Reassemble oven and check for proper operation.
COMPUTER CONTROL CALIBRATION
(SG4C/SG6C)
Calibration Steps
1.Place a thermocouple in the geometric center of the oven cavity.
2.Set the
A.If the set point temperature is 350°F, proceed to step 4.
B.If the set point temperature is other than 350°F, proceed to step 3 to change the temperature.
3.Press the set key then temperature key to enter the temperature set mode.
A.The display will alternate between the term StPt (set point) and the current oven temperature setting.
B.Press the UP or DOWN arrows to make the proper selection.
C.Press the set key again to save the change, then exit the temperature set mode.
4.Allow the oven temperature to stabilize (normally three cycles).
5.Compare the controls set point temperature to the thermocouple meter reading when the heat light goes out.
A.A temperature variance more than 5°F indicates an adjustment is needed.
1)To make the adjustment, proceed to step 6.
2)If temperature variances is less than 5°F, then the computer control is functioning properly.
6.Enter the setup mode as outline in Setup Mode under Computer Control (SG4C/SG6C).
A.Advance through the menu until CAL1 (calibration offset) appears.
1)If the thermocouple reading is higher than set point temperature, press the down arrow key and enter a negative offset value that is equal to the number of degrees above the 5°F tolerance.
2)If the thermocouple reading is lower than set point temperature, press the UP arrow and enter a positive offset value that is equal to the number of degrees below the 5°F tolerance.
3)Exit the setup mode.
7.Allow the oven to cycle at least two times between adjustments.
A.If the temperature variance still differs more than 5°F from the set point, verify the correct calibration offset value was entered and retained.
1)Adjust the calibration offset value as outlined in step 6, until the cycling temperature is within tolerance.
B.If the above adjustment cannot be obtained, replace the computer control and check for proper operation.
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