Dacor ELECTRONICS Manuel utilisateur
ELECTRONICS
Wall Ovens and Ranges
Diagnostic Test Manual
Table of Contents
ERC Quick Test………………………………………………………………………3
Voltage Check Points ………………………………………………………………4
Diagnostics
No Clock Display………………………………………………………………5
No Bake…………………………………………………………………………6
No Broil………………………………………………………………………… 7
No Heat on Pure Convection ………………………………………………8
Oven Light (Low Voltage Halogen)……………………………………………… 9
Door Latch ……………………………………………………………………10
Failure Codes F-7/F-8………………………………………………………..11
Cooling and Convection Fan………………………………………………12
Light 120 V Circuit ………………………………………………………… 13
No Bake Broil (ERG, EGR, PGR)………………………………………… 14
No Broil 36” Cell …………………………………………………………… 15
Lower Oven / No Bake………………………………………………………16
Lower Oven ERC Harness………………………………………………… 17
Membrane Test………………………………………………………………………18
19
Cycle Charts
Electric Ovens and Ranges ……………………………………………… 20
Gas Ranges……………. . .………………………………………………… 24
Dual Fuel Ranges ……………...……………………………………………27
(including the small cell of the ERD48)
Elecronic Diagnostics Page 3
ERC Quick Test
The process requires two people. To access the program, one person should stand at the oven, while
the other is located at the circuit breaker. The person at the circuit breaker turns off the breaker and
then the person at the oven depresses and holds the cooktime keypad. The person at the circuit
breaker then turns the breaker back on. The display will show the 4-character identification code of the
ERC. Example (1180)
You have 30 seconds between each test mode.
Note: if unit shows time of day start procedure over again.
Test 1
Push and hold convection bake
Bake element and convection fan activate.
Test 2
Push and hold Standard Bake
Bake element activate.
Test 3
Push and hold Pure Convection
Convection fan and convection element activate.
Test 4
Push and hold broil
Broil element activate. (on gas units - ignitor will activate.)
Test 5
Push and hold convection broil (select models)
Broil element and convection fan activate.
Test 6
Momentary push timer 2
Audible tone will sound.
Test 7
Push and hold stop time
Cooling fan activate.
Test 8
Momentary push clock
All LEDs will light up. Push + or - key pad. LEDs wil display numbers
Example: 1111, 2222, 3333, 4444 etc.
Test 9
Last test door open, push and hold cook time for 10 seconds
Self clean latch motor activate. Door latch will complete one cycle.
The test will end and ERC will display the time of day.
NOTE:
Complete all tests within 30 seconds - otherwise you will see a failure code (F-0: Stuck key pad) dis-
played on the ERC.
Elecronic Diagnostics Page 4
OUTPUT VOLTAGE CHECK POINTS
ON ERC/CLOCK CONTROL
All Ranges And Wall Ovens
When programming the oven into a cooking cycle, you first select the desired mode on the
touch membrane. Pressing this key sends a message to the ERC/Clock control, which in
turn triggers 24 Volts DC to be sent to the main relay board through the connective har-
ness. The desired relay (for example, Pure Convection) closes and distributes power to the
desired components. In order to correctly diagnose this sequence you need a volt meter
set on DC voltage. Drop the Bezel/Control panel down thus exposing the ERC/Clock and
related wiring. Dropping the control panel down will expose the back side of the ERC/Clock
control and main wiring harness. The connective harness will have 16 pins. Using a voltme-
ter take the test leads and insert into the backside of the main wiring harness
To take a voltage reading using the ERC connection chart below:
1. Set the voltage meter to DC voltage
2. Insert the test lead into the backside of the main harness
(plugged into the backside of the ERC control.)
For example: if bake isn’t working:
a) Insert the test leads into connections (2-5)
b) Program the unit into the bake cycle
The meter should read 22-24 Volts DC
TEST POINT 16
ERC CONNECTOR
sniPneewteB yaleR daeRdluohS
3-1 LBD STLOV42
5-2 EKAB STLOV42
6-2 LIORB STLOV42
7-2 NOITCEVNOC
TNEMELE STLOV42
9-2 NOITCEVNOC
NAF STLOV42
11-1 ROTOMROOD
)ROTOMHCTAL( STLOV42
31-1 NAFGNILOOC STLOV42
TEST POINT 1
Elecronic Diagnostics Page 5
1. Check incoming voltage. Appliances must have 240 volts with a neutral.
2. Check voltage at main relay board at L1 and N just in front of the low voltage
transformer. Should read 120 volts. Refer to picture for voltage test points.
3. If you do not have the voltage at L1 and N check wires and connections at
terminal block.
4. If you have 120 volts at L1 and N then check voltage at main ERC harness
connection coming off ERC clock control. Refer to picture for test points 14
and 15. Should have 22-24 volts AC input to ERC/clock control.
5. If you do not have 22-24 volts AC, suspect the main relay board or main
harness.
L1 test point
NO CLOCK DISPLAY
All Ranges And Wall Ovens
1
**Prior to going out on this call - make sure that the customer has re-set the circuit breaker.
Elecronic Diagnostics Page 6
1. Check the incoming voltage to the unit. There should be 240 volts with a neutral.
2. Check power at the Dbl (double line relay) from (Com) to neutral. There should be 120 volts
incoming to the Dbl. Refer to picture for testpoints. If voltage is ok, move to step 3.
3. Program the unit into a bake cycle. Check voltage across Dbl (double line relay) (N.O. side)
to BA relay for 240 volts. Refer to picture for test points. If no voltage replace relay board. If
you have 240 volts go to step 4.
4. Check the HTC (high temp cutout) for open circuit. HTC is a NC switch. The HTC is located
by the latch assembly and has a re-settable switch. (see picture)
NO BAKE
All Ranges And Wall Ovens
Reset Button
Elecronic Diagnostics Page 7
1. Check the incoming voltage to the unit. There should be 240 volts with a neutral.
2. Check power at the Dbl (double line relay) from (Com) to neutral. There should be 120
volts incoming to the Dbl. Refer to picture for testpoints. If voltage is ok, move to step 3.
3. Program the unit into a broil cycle. Check voltage across the DBL (double line relay) N.O.
output side and BR relay (Broil relay) For 240 Volts. Refer to picture for test points.
If you have voltage present go to step 4.
If you do not have voltage replace relay board.
4. Check the HTC (high temp cutout) for open circuit. HTC is a NC switch. The HTC is
located next to the latch assembly and has a re-settable switch. (see picture)
NO BROIL
All Electric/Dual-Fuel Ranges And Wall Ovens
Re-set Button
There is also a user programmable option to set the cooling fan off temperature to
200, 300, 400 or 450 degrees.
To change the temperature:
1. Touch Broil pad - enter temp as 500 degrees or higher.
2. Push and hold Broil pad for 5 seconds - COOL will show in the ERC display
3. Adjust fan shut off temp with the +/- pad. (000 = 300 degrees, all other settings will
display temp).
4. To exit the mode - press cancel.
Recommended factory setting is 300 degrees
This will only work on EC, MC and PC ovens
Elecronic Diagnostics Page 8
1. Check the incoming voltage to the unit. There should be 240 volts with a neutral.
2. Program the unit into pure convection. Check power at the Dbl (double line relay) from
(Com) to neutral. There should be 120 volts incoming to the Dbl. Refer to picture for
test points. If voltage is ok, move to step 3.
3. Check voltage across the DBL (double line relay) NO output side and the CVL (convection
element relay)
for 240 volts. Refer to picture for test points. )
If you have voltage present move to step 4
If you do not have voltage replace relay board.
4. Check the HTC (high temp cutout) for open circuit. HTC is a NC switch. HTC is located by
the latch assembly and has a re-settable switch. (see picture)
Double line relay
Convection Element
Relay
PURE CONVECTION - NO HEAT
Wallovens, Dual Fuel and Electric Ranges
Re-set Button
Elecronic Diagnostics Page 9
1. Check input voltage to the light transformer at the primary side across terminal 1 and 5.
Should read 240 volts. (see picture) If you do not have 240 volts across 1 and 5, check
wiring back to the terminal block. If there is 240 volts present at 1 and 5 go to step 2.
(see picture)
HALOGEN OVEN LIGHTS
Electric and Dual Fuel Ranges, Wall Ovens
Step 1
2. Check voltage at the light transformer on the secondary side across terminal 6 and 8.
Should read 12 volts. If you do not have 12 volts present at terminal 6 and 8 replace light
transformer.
If you do have voltage present go to step 3.
Step 2
Step 3
4. Check voltage at OL1 on main relay board. Should have 12 volts present after OL1
relay closes. If you do not have voltage present recheck steps 1-3 or replace relay
board. If you do have voltage present Check wiring to light socket and light bulb.
OL1
15
10
6
1= 0V 5=240V
6 to 8 = 12 VAC
8 to 10 = 12 VAC
6 to 10 = 24 VAC
8
3. Check voltage from the main relay board at terminal N which is to the left of OL1 relay.
Should have 12 volts present at N all the time. If you do not have 12volts present re-check
steps 1 and 2 or replace light transformer. If you do not have 12 volts present go to step 4.
(see picture)
N
Elecronic Diagnostics Page 10
DOOR LATCH NOT RUNNING
All Models
1. Check voltage at L2 just to the left of the DRLK relay. (door lock relay) you should have
120V present. See picture for test points.
If there is no voltage present, check wiring from L2 back to terminal block. If you have
voltage at L2 go to step 3
2. Program oven into self-clean cycle.
3. Check voltage from the DRLK (door lock relay) to neutral. See picture for
test points. Should have 120 Volts. If no voltage is present replace relay
board. If voltage is present check wiring to door latch assembly. If ok replace
door latch assy.
4. If you do not have 120VAC, check for (+ or -) 24V DC at molex connector on the
relay board. Pins 1 and 9 on relay board should read 24V DC (+or-); if not then replace
the relay board.
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