Maytag AOES3030 manual ERC Warnings and Failure Codes, Function Switch Connection Check Procedure

Testing Procedures

!WARNING

To avoid the risk of electric shock, personal injury or death, disconnect power before servicing, unless testing requires it.

ERC Warnings and Failure Codes

The Electronic Range Control is capable of detecting certain failures within the ERC, along with oven temperature sensor and self clean door latch switch.

The warnings and failure codes which may appear on the display:

If "d o o r" flashes in display, switch positions can only be displayed in Quicktest mode by touching clean pad, as shown below:

0both switches are open

1unlock switch closed, lock switch open

2lock switch closed, unlock switch open

3both switches are closed

DIGIT FAILURE DISPLAY

F1 control malfuction - Replace ERC

F2 oven over temperature - Check Sensor Wiring,

Sensor, and Temperature Limiter

F3 open sensor or sensor circuit (>3000) - Check Sensor

Resistance and Wiring

F4 shorted sensor or sensor circuit (<500) - Check Sensor

Resistance and Wiring

Function Switch Connection Check Procedure

The Quick-Test mode can be used to verify relay operation on the transformer/relay board. If the relay engages (clicks) during Quick Test mode it is generally operative.

Transformer/Relay Module

The relays for oven light, bake, broil, convection element, convection fan and double line break are controlled by approximately 24 VDC signal from the ERC. Input voltage is 102 - 132 VAC.

Testing of the relays is with voltage applied to oven after attaching voltmeter leads to appropriate terminals.

NOTE: If bake or broil do not work the first test would be the relay for double line break.

Double Line Break—K6

Drive voltage indicated at J1 connector Pins 1–3.

F7 shorted input key - Verify control panel to p.c. board

connection, test control panel continuity, Replace Control Panel

F9 door lock or door lock circuitry malfunction -

Check Latch Switch, check plunger switch

FFdoor lock circuitry malfunction at clean temperatures -

Check Latch Switch and Door Motor, check plunger switch

1.Turn off power to oven.

2.Attach voltmeter lead to E5 connector on relay board.

3.Attach voltmeter lead to E18 connector on relay module.

4.Turn on power and touch bake, broil, or convection.

5.If 240 VAC is indicated the double line break relay is closing. Otherwise, replace the transformer/relay board.

Temperature Calibration Offset

The ERC incorporates ± 35°F. calibration offset capabilities for the oven. This adjustment will not effect the cleaning cycle temperature and will remain in memory if power is interrupted. Follow the procedures as listed to calibrate oven.

1.Press BAKE pad.

2.Press + until an oven temperature greater than 500°F shows in display.

3.Immediately Press and hold BAKE pad until "00" appears in display, approximately 5 seconds.

4.To decrease oven temperature (for cooler oven), press

-until negative numbers appear.

Oven can be adjusted from -05° to -35° lower. To avoid over-adjusting oven move temperature -5° each time.

5.To increase oven temperature (for a warmer oven) press + until positive number appear. Oven can be set from 05° to 35° higher. To avoid over adjusting oven, move temperature 5° each time.

6.Press OVEN CANCEL pad. Temperature adjustment will be retained even through a power failure.

Bake Relay—K4

Double line break relay okay. Drive voltage at J1 connector Pins 3–5.

1.Turn off power to oven.

2.Attach voltmeter lead to E18 connector on relay board.

3.Attach voltmeter lead to E11 (BK) connector on relay module.

4.Turn on power and touch the bake pad.

5.If 240 VAC is indicated bake relay is operating.

Broil Relay—K5

Double line break relay okay. Drive voltage at J1 connector Pins 3–6.

1.Turn off power to oven.

2.Attach voltmeter lead to E18 connector on relay board.

3.Attach voltmeter lead to E12 (BR) connector on relay module.

4.Turn on power and touch broil pad.

5.If 240 VAC is indicated broil relay is operating.

B—8 16021875 Rev. 0 ©2003 Maytag Appliances Company