ELECTRONIC SURFACE ELEMENT CONTROL (ESEC20) TROUBLESHOOTING GUIDE
Surface
Element hot,
but Hot
Surface
Indicator
Lights do not
glow
All displays
blank
Element does
not come on
"PF" in
displays
"SD" in
displays
Power Board does not see 120 VAC (from element's hot surface
limiter) at P12 connector.
1. Five-wire connector from surface element harness not properly
connected to Power Board P12 connector.
2. Miswiring of surface element harness.
3. Bad surface element or Power Board.
1. ESEC wire harness not connected to UIB or Power Board.
2. Power Board not receiving power from harness.
3. Bad ESEC wire harness.
4. Bad Power Board or UIB.
5. Disconnected display ribbon or bad TSEC.
1. Miswiring at surface elements.
2. Miswiring at Power Board.
3. Bad Power Board.
Recent power failure or interruption of electrical service.
Appliance set for Display Mode.
1. Check the five-wire connector and seat properly to Power Board P12
connector.
2. Check surface harness for correct wiring from each element's hot surface
limiter - correct wiring or replace harness if necessary.
3. Turn on all elements to Hi. Wait a while to ensure all surfaces are hot.
Check the voltage from each input pin to Neutral at P12 - if one of them does
NOT read 120 VAC and the wiring from that element is correct, replace that
surface element or Power Board.
1. Check harness connections and reseat.
2. Verify that Neutral (white wire) is connected at teminal P1 and that L2 (red
wire) is connected at terminal P2 on the Power Board. Correct wiring or
replace harness if necessary.
3. Check continuity of ESEC harness connections. Replace harness if
necessary.
4. If connections and harness are okay, replace Power Board.
5. Re-power appliance & listen for audible beeps. If beeps are heard, check
ribbon cables and TSEC. If no beeps are heard, replace UIB.
1. Check wiring to surface elements. Correct wiring if necessary.
2. Check connections to Power Board terminals near relays & correct.
3. If wiring is correct, replace power board.
Touch any ESEC ON/OFF pad to reset display.
Re-power the appliance. Within 60 seconds touch and hold the Oven Cook
Time pad until "PF" appears in the displays. Touch any ESEC ON/OFF touch pad
to reset displays for normal use.
Symptom Likely Failure Condition/Cause Suggested Corrective Action
ESEC SYSTEM SCHEMATIC
"F5 00" in
displays
Communication break between ES500 and UIB.
1. Bad ESEC wire harness
2. Damaged UIB/Power Board/ES500 connector.
3. UIB bad.
4. Power Board bad.
5. ES500 bad.
1. Check ESEC harness connections make sure that they are all connected
properly. If they are all good connections you have bad harness - Replace
harness.
2. Check if UIB/Power Board/ES500 connectors have been damaged in
assembly. If damaged - replace UIB/Power Board/ES500.
3. Replace UIB.
4. Replace Power Board.
5. Replace ES500.
"F7 10" in
displays
UIB-TSEC Display Cable problem.
1. Display cable not properly seated in UIB connector.
2. Damaged UIB connector.
3. UIB bad.
4. TSEC bad.
1. Re-seat display cable in UIB connector.
2. Check if UIB connectors have been damaged in assembly. If damaged - replace
UIB.
3. Replace UIB.
4. Replace TSEC.
"F7 01" in
displays
UIB-TSEC Keypad Cable problem.
1. Keypad cable not properly seated in UIB connector.
2. Damaged UIB connector.
3. UIB bad.
4. TSEC bad.
1. Re-seat keypad cable in UIB connector.
2. Check if UIB connectors have been damaged in assembly. If damaged - replace
UIB.
3. Replace UIB.
4. Replace TSEC.
"F7 02" in
displays
UIB-Shorted keypad problem.
1. Keypad cable not properly seated in UIB connector.
2. Damaged UIB connector.
3. UIB bad.
4. TSEC bad.
1. Re-seat keypad cable in UIB connector.
2. Check if UIB connectors have been damaged in assembly. If damaged - replace
UIB.
3. Replace UIB.
4. Replace TSEC.
Missing
segments in
displays
Missing the same segement in all displays - UIB bad.
Missing segment in only one display -TSEC bad.
Missing same segment in all displays - Replace UIB.
Missing segment in only one display - Replace TSEC.
"F0 13" in
displays
FMEA (Failure Mode Effects Analysis).
1. Bad UIB.
1. Replace UIB.
"F0 15" in
displays
EEPROM Failure.
1. Bad EEPROM.
1. Replace UIB.
