Wells WV-4HFRW, WV-4HS Ventilator Operation, Hot Surface, Ventilator Indicator and Warning Lights

504 p/n 303903 opM WV-4H Ventless Hotplate Cooktop

VENTILATOR OPERATION

1.Press the VENTILATOR POWER switch to ON. The green VENTILATOR POWER light will glow and the blower fan will start. After a short time, if all filters are sensed as being in position and not clogged, the cooktop will be energized. The roll warmer is energized at all times.

During normal operation, the VENTILATOR POWER light will be the only light glowing on the upper control panel.

2.If the amber CHECK FILTER light glows, one or more filter elements is out of position. Check the GREASE BAFFLE, PRE-FILTER and FILTER PACK for proper installation in their respective positions. Grease baffle and filter pack position are sensed by mechanical switches. Pre-filter position is sensed by a vacuum switch.

3.When the amber REPLACE PRE-FILTERlight glows, the pre-filter is nearing the end of its service life. Replace the disposable

PRE-FILTER ELEMENT.

4.When the amber REPLACE FILTER PACK light illuminates, the HEPA / Charcoal filter pack is nearing the end of its service life. Replace the FILTER PACK.

Note: The REPLACE PRE-FILTER and REPLACE FILTER PACK lights are a warning that the indicated filter is near the end of its service life. The appliance will continue to operate for a period of time after the light glows to allow continued operation through a peak period. However, the indicated filters must be replaced within a reasonably short time period or they will clog and shut down electrical power to the cooktop. The ventilator blower will continue to run.

5.When the red SERVICE REQUIRED light glows, either the pre-filter or filter pack (or both) is clogged and can no longer pass sufficient air to allow further operation. The ventilator fan continues to run, but the cooktop is shut down until the underlying clogged filter situation has been corrected. This can occur when neither CHANGE...FILTER indicator light is lit, if both pre-filter and filter pack are marginal. Replacing both the pre-filter and the filter pack will remedy the situation.

Note: replacing the pre-filter, even though not very dirty, will often extend the service life of the more expensive filter pack.

Reset the unit by turning the VENTILATOR POWER switch to OFF, then back ON.

6.A failure of incoming electrical power will cause a shut down of the unit. After power is restored, reset the unit by turning the VENTILATOR POWER switch to OFF, then back ON.

OPERATION

CAUTION:

HOT SURFACE

Exposed surfaces can be hot to the touch and may cause burns.

Fig. 9 Ventilator Indicator and Warning Lights

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