Viking VUAR140 Troubleshooting Guide download pdf (Page 41)

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 volts 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 module.

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 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.

Double Lock Relay –K4

Double line break relay okay. Drive voltage at

J1 connection pins 1 and 7.

1. Turn off power to oven.

2. Attach voltmeter lead to E3 (neutral)

connection 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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Viking VUAR140 Troubleshooting Guide Page 41

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