Topics:

• Why did the hood turn on and off on its own?
• Why did the blower speed increase then decrease on its own?
• PW, PWC, PL, PI, IH, CTWH, and CTEWH heat sentry.
• At what temperature does the ventilation hood heat sentry turn on or turn off?
• What temperature activates or deactiviates the heat sentry feature?
• Why is the blower speed LED flashing?

Answer:

CT Wall, CT Island, CTE Low Profile, and all Pro Series Ventilation Hoods are equipped with a heat sentry feature, which automatically turns the ventilation hood on, or adjusts the blower speed to the next highest setting when excessive heat is sensed.

• The heat sentry feature activates when the exhaust temperature reaches 200°F (93°C) and deactivates when the exhaust temperature decreases to 185°F (85°C).
• If the ventilation hood is turned off and the heat sentry senses 200°F exhaust, the blower automatically turns on.
  • Once the exhaust temperature decreases to 185°F, the blower turns off.
• If the ventilation hood is turned on to low speed and the heat sentry senses 200°F exhaust, the blower increases to high speed.
  • Once the exhaust temperature decreases to 185°F, the blower decreases back to low speed.

For CT Wall, CT Island, and CTE Low Profile Hoods:

• The corresponding blower speed LED on the control will blink to indicate the heat sentry feature is activated.
• Once heat sentry feature is activated, the ventilation hood will continue to monitor exhaust temperatures every 3 minutes.
• When the blower speed returns to the original setting prior to heat sentry feature activation, the corresponding LED will stop blinking and remain constant.
• When the heat sentry feature is active, the customer will not have any control of the blower speed until the exhaust temperature decrease to 185°F.

Refer to the product Use and Care Guide for further information.

See also:

• Ventilation Hood Turns Itself On or Off
• Wolf Electric Oven Cooling Fan Operation
• Wolf Gas Range Fan Operation