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Beforecallingservice,checkthepossibleexplanationsbelow.If thesesolutionsfail,callBoschserviceat800=944=2904.
Pleasehaveyourserialnumberandmodelnumberready.Theyarelocatedontheundersideofthehoodontheleftside.
Probmem
Noise during operation.
Noise when not operating.
Fan motor does not work.
:ilter light does not turn off (DAH95 models only).
Filter light does not turn on (DAH95 models only).
Filter light comes on. (DAH95 models only).
Lights under hood hum.
3peration of hood trips breaker.
One light above Speed button blinks (DAH95 models only).
_11three lights above Speed button blink (DAH95 models only).
Possible Explanations
Some noise is normal due to vibration and air movement.
Excessive noise indicates one of the following:
, Ductwork is too small/undersized.
, Ductwork is too big/oversized.
, Ductwork is loose.
, Transtition is too small! too loose.
, Togglebolts are not tightened.
, Loose screws in trim parts, ect.
Backfiow flap on outside of duct wall cap moves with the
wind.
Power supply to hood is not sufficient.
Wires are not completely connected.
Light must be reset: hold filter button down for 3 seconds
(Always clean filters before resetting filter light).
Filter light will not come on until after 40 hours of operation.
Indicates that filters should be cleaned. Hold button down
for 3 seconds to reset.
A slight hum is normal.
o Wiring is not correct.
, Circuit is not correct.
Conditions exceed allowable temperatures. Turn on next
speed level.
Heat sensor is not working. Call service.
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