Issaquah Wolf Hood Will Not Switch Off

Hood Will Not Switch Off

Short answer

A Wolf hood that keeps running after you turn it off is often doing its job: on pro hoods the heat sentry takes over the blower once the exhaust passes about 200°F and hands it back below about 186°F. If it runs on over a cold cooktop, or starts in an empty kitchen, the sensor or control needs testing. Summit Cooking Appliance Service, (425) 272-6613, does that on one visit.

Install Check

Thresholds read on the visit by Summit Cooking Appliance Service, (425) 272-6613
What to measure	Where	Spec source	What it changes in the repair
Heat sentry thresholds	Exhaust temperature at the hood's sensor	Wolf Pro Ventilation Hood Use and Care Guide	On above 200°F, back to the previous setting below 186°F. A blower still being driven with the exhaust well under that points at the sensor or control, not the cooking.
Which hoods carry a heat sensor	Pro hoods and liners, and Wolf cooktop hoods	Wolf answer: ventilation hood turns itself on or off	Downdrafts have none, only a delay feature. A downdraft that runs on past its delay has a control fault, which narrows the search straight away.
Downdraft delay-off timing	The downdraft's DELAY button	Use and care guide for your Wolf downdraft model	DELAY runs the blower on for a set time and then stops it; the guide for your model gives that time. A downdraft still running well past it points at the control, not at the delay.

When running on is normal

Wolf fits a heat sentry to its pro hoods, hood liners and cooktop hoods. It reads the exhaust temperature and will start or speed up the blower whatever the knob says, then return it to your setting as things cool. After a long sear or a stockpot on a back burner, a few minutes of running on is the sensor at work. Downdrafts carry no sensor; their DELAY button runs the blower on for a set time after the cooking stops.

When it becomes a fault

It stops being normal when the blower runs over a cold cooktop, ignores the knob’s off position, or starts in an empty kitchen. For a sensor that never switches the blower on or off, Wolf’s own advice is service. What we usually find is the sensor, the blower control, or moisture in the controls after a heavy clean; Wolf says not to spray cleaner directly on the knobs.

What the visit covers

In an Issaquah kitchen with a pro hood or a downdraft, we read the exhaust temperature against Wolf’s thresholds, then test the sensor, the blower control and the knob’s off stop.

Before you book

Turn every burner and element off and leave the hood alone for a while. If the blower drops back once the cooking area cools, that was the heat sentry working as Wolf designed it.

Turn the blower knob fully counterclockwise, right to its stop; that is the off position in Wolf's guide. A knob resting just short of the stop may still be on its lowest speed.

On a downdraft, the DELAY button runs the blower on for a set time after you switch off; the use and care guide for your model gives that time. Longer than that, with the kitchen cold, is worth booking.

Stop there. Whatever sits behind the appliance's own panels, on its gas valves or live inside it is ours to test: call Summit Cooking Appliance Service on (425) 272-6613 and say what you found in the steps above.

Questions

The hood came on by itself while we were out. Should we worry?

If anything under the hood was still hot, the heat sentry may have started it, and that is normal. If nothing had been used for hours, the control is misbehaving, so switch the hood off at its breaker. Summit Cooking Appliance Service, (425) 272-6613, will test the sensor and the control before either one is replaced.