Display Diagnostics
!
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to oven and discharge capacitor
before servicing, unless testing requires power.
16025975
March
2005
©2005 Maytag Services
10
CAUTION
!
All repairs as described in this troubleshooting section are to be performed only after the caution procedures one through
eight listed below have been followed.
1. Check grounding before checking for possible causes.
2. Be careful of the high voltage circuit.
3. Discharge high voltage capacitor.
4. When checking the continuity of the switches or 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.
5. Do not touch any parts of the circuitry on the P.C. Board circuit since static electric discharge may damage this control
panel. Always touch yourself to ground while working on this panel to discharge any static charge in your body.
6. 208/230 VAC is present in the high voltage circuit board, power relay and primary circuit of low voltage transformer.
7. When troubleshooting, be cautious of possible electrical hazard.
8. When testing convection operation, convection fan may start at any time or if oven is hot.
Error Codes
During operation, the display may show the following service codes:
NOTE:
Before scheduling service for any error codes, instruct customer to unplug oven for 1 minute, reconnect
power, and retest. If unit operates properly, no service call is required.
Display Description
Corrective
Action
Err1
Failed H.V. Board
See note above.
Replace H.V. board.
Err2
Failed Touch Panel
Failed H.V. Board
Replace Touch panel.
See note above.
Replace H.V. board.
May be a failed Touch Panel. Verify before replacing H.V. Board.
Err3
Failed H.V. Board
Failed Touch Panel
See note above.
Replace H.V. board.
Replace Touch panel.
May be a failed Touch Panel. Verify before replacing.
Err4
Failed H.V. Board
See note above.
Replace H.V. board.
Err5
Failed Touch Panel
See note above.
If Touch Panel is pressed for more than 30 seconds, this error code will
appear.
Replace touch panel.
Err6
Failed H.V. Board
See note above.
Replace H.V. board.
Err7
Error with RTD circuit
If power level shows
0-Uncalibrated .................................................
1-Shorted RTD circuit ......................................
2-Open RTD circuit..........................................
See note above.
Replace H.V. board.
Check RTD and wiring to H.V. board.
Check RTD and wiring to H.V. board.
HOT
See note above.
Open TCO.
Convection motor inoperative.
Restricted air filter.
H.V. board inoperative.
Broken or loose wire.
Door
Door Interlock Primary Switch
See note above.
Verify latch mechanism moves freely on door.
Verify J1 connector on display board is properly seated.
Test interlock switch assembly and perform door adjustment if necessary.
Replace interlock switch assembly if failed.
