Relay Board 2; Bake Relay K2; Broil Relay K3; Door Lock Relay K4 - Viking VGDO271 Service Notebook

TESTING PROCEDURES

Relay Board 2

The relays for oven light, bake, broil, convection
element, convection fan and double line break are
controlled by approximately 24 VAC signal from ERC.
Input voltage is 102 -- 132 VAC.
Testing of the relays is with voltage applied to oven
after attaching voltmeter leads to appropriate terminals
NOTE: If bake, broil, or convection do not work, the
first test would be the relay for double line break.
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.
4. Turn on power and touch the bake pad.
5. If 24 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 24 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.
• 120 VAC will be present during the lock
assembly is being engaged.
• 0 VAC is indicated when the door is locked and
cleaning cycle is operational.
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