tech-sheet-16022494
Electric Freestanding Range Technical Information

JER8885QA*

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

Refer to Service Manual 16022487 for detailed installation, operating, testing, troubleshooting, and disassembly instructions.

! CAUTION

All safety information must be followed as provided in Service Manual 16022487.

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

Model JER8885QA* Power Source @ 240 V (208 V) 12.4 kW (9.5 kW) Electrical rating Amperage 40 Amp Frequency Element Wattage @ 240 V (208 V) 60 Hz 6-inch warming ribbon radiant @ 120 V 6-inch ribbon radiant 100 (80) 9/6 inch dual ribbon radiant 1,200 (960) 11/8-inch dual ribbon radiant 2400/1000 (1920/800) Oven Wattage @ 240 V (208 V) 2,700/1700 (2160/1360) Warming Drawer @ 120 V Convection 550 W (1603 W) Bake 5 pass 1850 W (2400) Broil 5 pass 3,000 (2880) Oven Interior Dimensions in. (cm) 3,600 Height Width 19 3/16 (48.7) Depth 24 1/4 (61.3) Product Exterior Dimensions in. (cm) 19 3/8 (49.2) Height overall Width 47 3/8 (120.3) Depth oven door closed with handle 29 7/8 (75.9) Height of cooktop 29 (73.7) Features 36 (91)

Oversized glass ceramic Spillsaver X X Frameless glass door with window X Interior oven light X 2 standard and 1 half oven rack 8 positions X Automatic oven door latch Weight lbs. (kg) 215 (97.5) Uncrated

September 2003 1 16022494

Component Testing Procedures

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

Illustration Component Test Procedure Results Oven light socket 1200 W Remove one wire from receptacle 2400/1000 W Ribbon radiant 2700/1700 W elements and test resistance of terminals………… Indicates continuity with bulb screwed in. 100 W 0316689 Warming element Measure voltage at oven light…………… 120 VAC, see wiring diagram for terminal Ribbon surface thermal limiter/hot identification. light switch If no voltage is present at oven light, check Snap Action Infinite switch wiring or light switches.

Dual Infinite switch Remove element and measure Continuity, if not replace.

Oven temperature resistance across terminals. 1200W: 44 to 49 Approximately sensor Bake element Dual element 1000 + 1400 = 2400 W 2400W: 53 to 59 Approximately inner

Broil element 38 to 42 Approximately outer

Dual element 1700 + 1000 = 2700 W 2700W: 31to 34 Approximately inner

53 to 59 Approximately outer

Remove one wire lead from element Continuity, if not replace.

and measure resistance of the 100W: 132.8 to 146.9 Approximately

element.

Disconnect leads and measure

resistance on the following: 240 VAC

1a 2a room Electrovac Therm-O-Disc (TOD) temperature continuity

1b 2b room temperature infinite

Turn surface element on and test for 2b 1b voltage. See wiring diagram and Hot light schematic. 2a circuit

1a 2a 240 VAC 2b Heater 1a Heater 1b 2b 120 VAC circuit circuit Hot light circuit 2a 1a 1b

Connect Volt-ohms meter to Approximate H1 and H2. 5 L1 3 Time On Time Off 4 H2 L2 Measure the following for voltages at LO, MED, HI: LO 5% 95%

H1 to H2 MED (4-5) 35% 65% Connect Volt-ohms meter to H1 and H2. HI 100% 0%

P Measure the following for voltages at 240 VAC, if not replace switch. LO, MED, HI: 2 1 H1 to H2 H1 Measure resistance.

Approximate

TOP Time On Time Off L2 P L1 LO 8% 92%

MED (4-5) 35% 65%

HI 100% 0%

H1 H2

240 VAC, if not replace switch. Approximately 1100 at room temperature 80°F.

Disconnect wire leads to element and Approximately 18.6 , measure resistance of terminals……….. if not replace.

Measure voltage at bake element……… 240 VAC, see wiring diagram for terminal identification. If no voltage is present at bake element check wiring.

Disconnect wire leads to element and Approximately 15.5 , measure resistance of terminals……….. if not replace.

Measure voltage at broil element………. 240 VAC, see wiring diagram for terminal identification. If no voltage is present at broil element check wiring.

16022494 2 September 2003

Component Testing Procedures

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

Illustration Component Test Procedure Results Warming element Disconnect wire leads to element and Approximately 25.4 ,

measure resistance of terminals ………. if not replace.

Convection element Measure voltage at element…………….. 120 VAC, see wiring diagram for terminal Test continuity of terminals ………….. identification. If no voltage is present at element check wiring.

Approximately 30 – cold

Test voltage to terminals……………… 240 / 208 VAC Convection motor fan Verify supply voltage…………………… 120 VAC

Oven indicator light Measure continuity at the following Continuity and points: Infinite Surface indicator light Terminal to terminal ……………………. If voltage is present and light does not Rocker switch Terminal to ground……………………… work replace light. Measure voltage at indicator light. If no voltage is present at indicator light Door plunger switch check wiring. Measure continuity of switch positions: Autolatch assembly Closed ………………………………………. Continuity with switch Open ………………………………………… Infinite

C NC Measure continuity at the following Plunger in continuity, Plunger out infinite. points: See wiring diagram for schematic layout. NO C-NO ………………………………………… Refer to Parts Manual for correct Hi-limit switch Disconnect wires and test for autolatch switch associated with the Limiter continuity per wiring diagram. correct manufacturing number.

Verify proper operation. Open at 140°F Closes at 120°F Normally Closed Matrix Verify proper operation. Infinite Trace Measurement Control Panel Assembly Continuity 13 & 15 Continuity Open ………….320°F ……………………. 12 & 15 Continuity Manual Reset- Closed …………………. Pad 10 & 15 Continuity Continuity is indicated as follows: 1 7 & 13 Continuity 1000 – 6600 for Cancel pad 2 12 & 13 Continuity 1000 – 15000 for All other pads 3 10 & 12 Continuity 4 4 & 13 Continuity 16 5 4 & 12 Continuity 6 4 & 10 Continuity 9 7 5 & 12 Continuity 8 8 1 & 2 Continuity 9 7 & 11 Continuity 1 0 11 & 13 Continuity Cancel 4 & 7 Continuity 3 Convect Bake 7 & 15 Continuity Convect Roast 4 & 5 Continuity Keep Warm 5 & 7 Continuity Bake 11 & 12 Continuity Broil 5 & 10 Continuity Clean 4 & 11 Continuity Drying 5 & 11 Continuity Proofing 11 & 15 Continuity Timer 5 & 13 Continuity Clock 10 & 11 Continuity Cook & Hold Favorite 16022494 Light

September 2003

Component Testing Procedures

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

Illustration Component Test Procedure Results H1 Controlled Oven temperature While increasing or decreasing oven adjustment Press BAKE pad. temperature, this does not affect self- H1 Controlled Enter 550 on the digit-pad. cleaning temperature. H1 Controlled Temperature display Immediately press and hold BAKE H1 Controlled Clock Display pad for 3 seconds. H1 Controlled 24 Hour Clock H1 Controlled Factory Default Oven can be adjusted from -35 to +35 This mode enables the user to indicate H1 Controlled Twelve hour off degrees in 5-degree increments by °F or °C on the display. Sabbath Mode pressing AUTOSET pad. To avoid Allows clock to be toggled On or OFF. H1 Controlled over adjusting the oven, move Child lock out temperature 5 degrees each time. Allows the time on the clock to be H1 Controlled Wait 4 seconds for the data entry toggled from 12 hour or 24 hour display. Diagnostic Code timer to expire to accept the change. Allows the clock to be reset to factory Display Temperature adjustment will be settings. retained even through a power failure. See Sabbath mode to disable. Press and hold Cancel and Bake pads for 3 seconds. “SAb” will be displayed and flash for 5 Press and hold Cancel and Clock seconds. pads for 3 seconds. Display will go back to time of day. Press and hold Cancel and Favorite All pad inputs are disabled except for pads for 3 seconds. CANCEL and CLOCK pads. Press and hold Cancel and Keep This mode disables the normal 12 hour Warm pads for 3 seconds. shutoff to allow operation of the bake Control will automatically cancel any mode for a maximum of 72 hours. cooking operation and remove all relay This is a safety feature that can be used drives 12 hours after the last pad to prevent children from accidentally touch. programming the oven. It disables the Hold CLOCK button for 3 seconds to electronic oven control. activate Sabbath mode. Child lockout features must be reset after Hold CLOCK for 3 seconds to disable a power failure. Sabbath mode. The last 5 diagnostic codes will be stored Press and hold Cancel and Cook & in the non-volatile memory. Hold pads for 3 seconds. “OFF” will display where the temperature See “Description of Error Codes” for normally appears. “LOCK” will display explanation. flashing while door is locking.

To reactivate the control, press and hold Cancel and Cook & Hold pads for 3 seconds. See “Quick Test Mode”.

Cycle through the codes using the number pads 1 through 5.

16022494 4 September 2003

Component Testing Procedures

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

Relay Logic Note that this chart was correct at time of printing; subsequent changes to cooking parameters may alter it.

COOKING MODE BAKE IDLE BROIL BAKE PREHEAT CONVECT ELEMENT BAKE CONVECT FAN BROIL PREHEAT COOLING FAN BROIL OVEN LIGHT CLEAN PREHEAT CLEAN r r r r KEEP WARM rr rr r r rr rr rr rr r r r r r

CONVECT BAKE PREHEAT

CONVECT BAKE

CONVECT ROAST PREHEAT

CONVECT ROAST r r r PROOFING PREHEAT rr rr rr PROOFING r r r DRYING PREHEAT DRYING

KEY INDEX

– OFF – ON – CYCLING – ON OR OFF (DETERMINED BY USER INPUT) – TEMPERATURE CONTROLLED

September 2003 5 16022494

Component Testing Procedures

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

“Quick Test” Mode for Electronic Range Control

Follow procedure below to use the quick test mode. Entries must be made within 32 seconds of each other or the control will exit the quick test mode.

1. Press and hold CANCEL and BROIL pads for 3 seconds. 2. Once the control has entered the “Quick Test” mode, release both pads. 3. Press each of the following pads indicated in the table below.

NOTE: First time the one of following pads are pressed it will activate the response. The second time the pad is pressed it will deactivate the response.

Display will indicate the following:

Pad Response

BAKE …………………………….. Bake DLB and Bake relay activated

BROIL……………………………. Broil DLB and Broil relay activated

KEEP WARM …………………. Bake DLB and Broil DLB activated

CONVECT BAKE ……………. Convection Fan on high speed

CONVECT ROAST …………. Cooling Fan activated

CLEAN…………………………… MDL relay activated

COOK & HOLD……………….. Displays last diagnostic code

FAVORITE……………………… Displays EEPROM version number

TIMER …………………………… Displays main code version number

CLOCK ………………………….. All display segments illuminated

OVEN LIGHT………………….. Oven light activated

CANCEL ………………………… Exit Quick Test mode

1……………………………………. Even segments on

2……………………………………. Odd segments on

3……………………………………. Convection Ring activated; Convection Ring DLB activated

4……………………………………. Bake relay activated

5……………………………………. Broil relay activated

6……………………………………. Convection relay activated

7……………………………………. N/A

8……………………………………. N/A

9……………………………………. N/A

AUTOSET………………………. Steps through last 5 diagnostic codes

Description of Error Codes

Error diagnostic codes can only be viewed by entering the Diagnostic Code Display Mode. Each error code is four digits long and is created based on the following table.

Digit Description 1st Primary System: 1 – Local to the control circuit board 2nd 3rd 3 – Sensor or meat probe 4th 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

Diagnostic Code Display Mode can be activated by pressing and holding the AUTOSET pad for 3 seconds at power-up. Diagnostic Code Display Mode can only be started while powering up the control.

16022494 6 September 2003

Component Testing Procedures

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

Diagnostic Code Checking

Code Description When Checked Detection

1c1c Shorted key Always 1 minute Always 1 minute 1c2c Keyboard tail disconnected Always 20 seconds Always 20 seconds 1c31 Cancel key circuit problem When accessing EEPROM Always 3 tries 1c32 Cancel key circuit problem Cook or clean programmed 3 tries Latch unlocked 3 tries 1c6c EEPROM error Latch unlocked 1 minute Latch locked 1c7c Control not calibrated Latch locked 1 minute Cook or clean active 1c8c Cooking program error Cook or clean active 1 minute Cook or clean active 1d11 Runaway temp (650°F), door unlocked Cook or clean active 1 minute Clean or keyboard Lockout active 1d12 Runaway temp (650°F), door unlocked Clean or keyboard Lockout active 20 seconds Clean or Cook programmed 20 seconds 1d21 Runaway temp (950°F), door locked Suppose to be OFF 20 seconds Convect, Clean or Keyboard Lockout programmed 20 seconds 1d22 Runaway temp (950°F), door locked Convect, Clean or Keyboard Lockout programmed Latch should be locked 1 minute 3d11 Sensor open Latch should be locked 1 minute Latch should be unlocked 1 minute 3d12 Sensor open Latch should be unlocked 1 minute Latch should be locked or when lock attempted 1 minute 3d21 Sensor shorted Latch should be locked or when lock attempted 1 minute See Notes 6 3d22 Sensor shorted See Note 6 See Note 6 4d11 Door switch position failure See Note 6 See Note 6 4d12 Door switch position failure See Note 6

4d21 No reverse airflow fan rotation (no/low RPM)

4d31 Reverse airflow fan state (on when should be off)

4d51 Door switch circuit failure

4d52 Door switch circuit failure

9d11 Latch will not lock

9d12 Latch will not lock

9d21 Latch will not unlock

9d22 Latch will not unlock

9d31 Latch state unknown, both locked and unlocked

9d32 Latch state unknown, both locked and unlocked

Diagnostic Code Handling

Code Measurable What is Displayed Action Taken By Control

1c1c Keypress Nothing Disables audible for affected key depression Disables all outputs 1, 2 1c2c Keyboard loop improper value Nothing Disables lights and timers

1c31 Cancel key improper value BAKE flashes 3 Disables audible for key depression 1c32 Cancel key improper value BAKE flashes 3 Disables all outputs 1 1c6c No response from EEPROM Disables lights and timers 1c7c Calibration value out of range Nothing Disables all outputs for cavity 1 1c8c CRC invalid “CAL” in the time digits Disables all outputs for cavity 1 1d11 Sensor resistance > 2237 Ohms Disables all outputs 1 1d12 Sensor resistance > 2237 Ohms Nothing Completely disables oven 4 1d21 Sensor resistance > 2787 Ohms BAKE flashes 3 1d22 Sensor resistance > 2787 Ohms BAKE flashes 3 Cancels active cook function 3d11 Sensor resistance > Infinite Ohms BAKE flashes 3 3d12 Sensor resistance > Infinite Ohms BAKE flashes 3 Disables all cook function for cavity 3d21 Sensor resistance > 0 Ohms BAKE flashes 3 3d22 Sensor resistance > 0 Ohms BAKE flashes 3 Disables all cook function for cavity 4d11 Door switch not closed when door is locked BAKE flashes 3 4d12 Door switch not closed when door is locked BAKE flashes 3 Disables all cook function for cavity 4d21 No reverse airflow fan rotation (no/low RPM) 4d31 Reverse airflow fan state (on when should be off) Nothing Disables all cook function for cavity 4d51 Door switch not open or closed Nothing Nothing Disables all cook function for cavity 4d52 Door switch not open or closed Nothing Disables all cook function for cavity 9d11 Lock switch not closed Nothing 9d12 Lock switch not closed Disables all cook function for cavity 9d21 Unlock switch not closed Nothing 9d22 Unlock switch not closed Disables all cook function for cavity 9d31 Latch both locked and unlocked LOCK flashes 3 Disables Clean and Lockout functions 5 9d32 Latch both locked and unlocked LOCK flashes 3 Disables Clean and Lockout functions 5 LOCK flashes 3 LOCK flashes 3 Disables all cook function for cavity LOCK flashes 3 LOCK flashes 3 No action Disables Convect, Clean, and Lockout functions 4, 5 Turn off light and disable light from door switch Disables Convect, Clean, and Lockout functions 4, 5 Turn off light and disable light from door switch Disables Clean and Lockout functions 4 Disables Clean and Lockout functions 4 Disables Clean and Lockout functions 4 Disables Clean and Lockout functions 4 Disables Clean and Lockout functions 4 Disables Clean and Lockout functions 4

September 2003 7 16022494

Component Testing Procedures

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

NOTES:

1 “Action Taken” applies as long as the condition exists. If the condition goes away, the control recovers.

2 If there is a cook function or timer active, the function continues. The user cannot edit the function, and [Cancel] will cancel the cook mode.

3 Flash rate: 0.2 seconds on, 0.1 second off. Pressing any key will clear the display until the fault clears and is re-triggered.

4 “Action Taken” applies until there is a POR (Power On Reset [“hard reset”]).

5 If the control believes the door is locked, it will attempt to unlock it when the function cancels and the cavity temperature cools.

6 Special conditions for latch faults (9dxx):

A known good unlock position is defined as when the unlock switch reads closed and lock switch reads open. A known good lock position is defined as when the unlock switch reads open and lock switch reads closed. A faulted switch means the switch input is reading an invalid state, neither open nor closed. Once a latch fault occurs, latch movement is disabled until there is a POR. An error tone will sound if a function requiring a

faulted latch is attempted. If at POR, the latch is not at a known good unlock position:

If the latch is at a good lock position, it will attempt to unlock when the RTD (Resistance Temperature Device) temperature is below 400°F.

If the latch is not at a good lock position, the control will fault. If a latch fault occurs while the RTD is above the lock temperature, the latch will not try to move, but the fault is still logged

to EEPROM after the first stage of detection. The Display column for latch faults applies 1) If the latch was moving when the fault occurred; 2) If the latch is already in a

known locked state when the fault occurs.

LOCK flashes after a fault is detected and until the unlocked position is achieved. The unlock position may be identified by a successful unlock switch closure, or as the result of timing when the unlock switch is not functioning properly.

If the last known good position was unlock (e.g. baking, or idle) and a latch fault occurs, the motor is never moved. The fault is logged to EEPROM and is not seen by the user.

The detection for latch faults is in two stages. The first stage is to let the control recover without moving the latch. After this: If the latch was previously at a known good unlock position, the latch will not move and the control will fault. If the control was previously in a known good lock position: If the RTD is below 400°F, the latch will attempt to recover to it’s proper position (up to three revolutions). If it cannot, the control will fault and the latch will move to a calculated unlock position. If the RTD is at or above 400°F, the control will fault. When the RTD cools to below 400°F, the control will attempt to recover to a good unlock position (up to three revolution). If it cannot, the control will fault and the latch will move to a calculated unlock position. Note: If the unlock position cannot be found, this may result in a second fault, the first fault occurring when the latch request was locked, and the second when the latch request is unlocked.

If the latch is moving when the fault occurs, the control will bypass the first stage of detection and immediately try to find it’s proper position. If it cannot, the control will fault and the latch will move to a calculated unlock position.

Affected DLBs (Double Line Breaks) and loads are disabled during detection. If the control is in a known good unlock position and the lock switch becomes faulted:

The control will not fault. If a function requiring latch movement is attempted while the lock switch is faulted, the control will sound an error

tone and the function will be disabled. If the control is in a known good lock position and the unlock switch becomes faulted:

The control will not fault. After the function is canceled and unlock is attempted, the control will attempt to unlock the latch according to

the procedures in these notes.

16022494 8 September 2003

Wiring Diagram and Schematic

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

September 2003 9 16022494

Wiring Diagram and Schematic

! WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to oven before servicing, unless testing requires power.

16022494 10 September 2003