Vulcan-Hart FB series Instructions d'exploitation télécharger pdf (Page 12)

TROUBLE SHOOTING (Continued)

PROBLEM CORRECTIVE ACTION

A top round element is not working. Measure voltage between HI & H2 terminals of the infinite switch. (With switch in HI

position)

If 208 volt, check for defective element or their connecting leads.

If no volt, check the voltage between L1 & L2 terminals of the same switch.

If 208 volt, the switch is defective.

If no volt, check for bad supply connection to the L1 & L2 terminal.

A griddle element is not working. Check voltage between leads #37 & 44 (or 38 & 45) on the griddle element terminals.

If 208 volt, the griddle element is defective.

If no volt, measu re between #37 & 44 (or 38 & 45).

If 208 volt, the thermostat is defective.

If no volt, check for bad connections in the leads or thermostat terminals.

The circuit breaker trips as soon as the

power is turned on.

The immediate tripping of the circuit breaker is an indication of a short circuit (either to

ground or between the two phases.)

With the power OFF, check the resistance between each phase & the chassis and

between the phases with an ohmmeter (or continuity tester).

The circuit breaker trips after the range is

operating for at least a few minutes

The slow tripping of the circuit breaker is an indication of overload in the particular

circuit. The cause of overload can be due to:

a. Wrong use of element e.g. using a 208 volt element in a 240 volt circuit would

increase the current by 1.15 times. Check the voltage rating stamped on the

element.

b. Partially defective element; measure the amp in the suspicious element and

compare with the expected value which can be easily calculated by dividing the

watt rating of the element (see the wiring diagram) over the supply voltage e.g., for

a 208 volt french plate the amp.

reading would be 2000 watt = 9.6amps

208 volt

c. Partially defective breaker; measure the current (amps) going through the

suspicious breaker with all elements turned fully on. If the reading does not

exceed 50 amps and the breaker trips, replace the breaker.

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Vulcan-Hart FB series Instructions d'exploitation Page 12