Oven Light Relay K10; Door Lock Relay K3; Display (Filament) Voltage; Relay Board 2 - Viking VEDO 273 Service Notebook

TESTING PROCECURES
Oven Light Relay -- K10
Drive voltage at J1 connector Pins 1 and 4.
1. Turn off power to oven.
2. Attach voltmeter lead to E3 (neutral) connector on
relay module.
3. Attach voltmeter lead to E17 connector on relay
module.
4. Turn on power and touch oven light pad.
5. If 120 VAC is indicated, oven light relay is
operating.
Door Lock Relay --K3
Double line break relay okay. Drive voltage at J1
connector Pins 1 and 9.
1. Turn off power to oven.
2. Attach voltmeter lead to E3 (neutral) connector on
relay module.
3. Attach voltmeter lead to E8 connector on relay
module.
4. Turn on power and program cleaning cycle
operation.
5. Two indications will be present during this test.
a. 120 VAC will be present when the lock
assembly is being engaged.
b. 0 VAC is indicated when the door is locked and
cleaning cycle is operational.

Display (Filament) Voltage

1. Turn on power, turn meter to VAC scale.
2. Touch meter lead to J1-1 terminal.
3. Touch meter lead to J1-14 terminal.
4. Meter should indicate 3.2VAC.

Relay Board 2

The relays for oven light, bake, broil, convection
element, convection fan and double line break are
controlled be approximately 24VDC signal from the
ERC. Input voltage is 102 - 132 VAC.
NOTE: If bake, broil, or convection do not work, the
first test would be the relay for double line
break.
Double Line Break -- K1
Drive voltage (24VDC±) indicated at J1 connector Pins
5 and 7.
1. Turn off power to oven.
2. Attach voltmeter lead to E1 connector on relay
board.
3. Attach voltmeter lead to E18 connector on relay
board.
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 relay board.
Bake Relay --K2
Double line break relay okay. Drive voltage at J1
connector Pins 4 and 5.
1. Turn off power to oven.
2. Attach voltmeter lead to gray wire connection on
double line break relay.
3. Attach voltmeter lead to E3 (BA) 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 -- K3
Double line break relay okay. Drive voltage at J1
connector Pins 3 and 5.
1. Turn off power to oven.
2. Attach voltmeter lead to gray wire connection on
double line break relay.
3. Attach voltmeter lead to E6 (BR) connector on relay
module.
4. Turn on power and touch broil pad.
5. If 240 VAC is indicated broil relay is operating.
Door Lock Relay -- K4
Double line break relay okay. Drive voltage at J1
connector Pins 1 and 7.
1. Turn off power to oven.
2. Attach voltmeter lead to E3 (neutral) connector on
transformer/relay board 1.
3. Attach voltmeter lead to E2 connector on relay
module.
4. Turn on power and program cleaning cycle
operation.
5. Two indications will be present during this test.
a. 120 VAC will be present when the lock
assembly is being engaged.
b. 0 VAC is indicated when the door is locked
and cleaning cycle is operational.
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