Troubleshooting Procedures; Control System Troubleshooting - Maytag MGR6775ADB Service Manual

Troubleshooting Procedures

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to oven before servicing,
unless testing requires power and/or gas.
• Verify proper grounding before checking for trouble.
• Be careful of the high voltage circuit.
• Discharge the high voltage capacitor.
• When checking the continuity of the switches or of the high voltage transformer, disconnect one lead wire from
these parts and then check continuity with the AC plug removed. To do otherwise may result in a false reading
or damage to your meter.
• Do not touch any part of the circuit on the printed circuit board, since static electric discharge may damage the
control panel. Always touch yourself to ground while working on this panel to discharge any static charge built
up on your body.
Control Systems Troubleshooting
Description of Error Codes
The Diagnostic Code Display Mode allows viewing of the error diagnostic codes.
Each error code consists of four digits. The following table describes the function of each digit.
Digit
st
1
nd
2
rd
3
th
4
Diagnostic Code Display Mode may be activated by pressing and holding the AUTOSET pad for 3 seconds at
power-up. Diagnostic Code Display Mode may be entered only when applying power to the control.
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CAUTION
Primary System: 1 – Local to the control circuit board
3 – Sensor or meat probe
4 – Control input
9 – Door lock
Measurable: d – Diagnostic: measurable parameter
c – Control related, replace control
Secondary System: Sequential numbering
Oven Cavity: 1 – Upper oven (or single cavity oven)
2 – Lower oven
c – Control specific
WARNING
Description
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