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Troubleshooting
DANGER: Turn off the power circuit breaker or the power switch on the junction box before performing maintenance. Touching circuitry inside
the range hood while it is energized will result in death or serious injury .
Problem
The range hood will not operate .
The range hood vibrates when the fan is operating .
The fans seem weak .
The lights work, but the fan is not spinning, is stuck,
or is rattling .
The range hood is not venting properly .
The light does not work .
Solution
- Check that the power supply cable and all electrical wiring are properly
connected .
- Check that the power is turned on at the junction box or circuit breaker.
- Check that the wiring between the switch control and the control board are
connected properly .
- Check that the range hood has been secured properly to the wall . Tighten into
position, if necessary .
- Check that the motor is secured in place . If not, then tighten the motor in place .
- Check that the fan is not damaged . If so, replace the fan .
- Check that the duct size used is at least 6 in . (152 mm) round . The range hood
will not function efficiently with insufficient duct size.
- Check that the duct is not clogged with debris and the tight mesh on the wall
cap, if applicable, isn't restricting air flow.
- Check that the damper unit is opening properly .
- Check that no birds or animals have nested in the duct .
- The thermal protection system detects if the motor is too hot to operate and
shuts the motor down . In this case, the motor will function properly after the
thermal protection system cools down (after approximately 10 min.).
- Check that the fan isn't jammed .
- If nothing else works, the motor may be defective or seized . If so, replace the
motor .
- Check that no birds or animals have nested in the duct .
- Check that the distance between the cooktop and the bottom of the range hood
is within the previously recommended distance .
- Check that duct work follows all requirements . Use round metal duct work with
a uniform diameter of 6 in . (152 mm) . The length of duct work must not exceed
35 ft (10 .7 m) . Reduce the length of duct work and the number of elbows if
necessary . Ensure that all joints are properly connected, sealed, and taped .
- Check that the duct does not open against the wind .
- Ensure that the power is on high speed for heavy cooking .
- Wind from opened windows or doors may affect the performance of the range
hood. Close all windows and doors to eliminate outside air flow.
- To enhance the performance of the range hood, open slightly a window on the
opposite side of the house where the range hood vents outdoors .
- Check to see if light bulb is burnt . If so, replace .
- Check to ensure the light bulb is connected properly .
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Please contact cs@conglomkb.com or 1-877-333-0098 for further assistance .
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