JennAir hood display shows C: charcoal filter service
A JennAir hood installed to recirculate uses a charcoal filter to strip odors before the air returns to the kitchen.
Mon–Sat, 8am–8pm
- Filter reminders
- Range hood filter and baffle service
- Source: JennAir
Book a visit
Three short steps, about a minute.
or call (844) 398-3217
Loading appointment form…
The appointment form couldn’t load. Please try again.
What C
actually means.
A JennAir hood installed to recirculate uses a charcoal filter to strip odors before the air returns to the kitchen. The control tracks fan hours and, at 120, shows C whenever the fan runs. On these hoods the charcoal filter is washed and dried hot to reactivate it, and replaced after about three years.
JennAir range hood display
What to do when C shows on the range hoodKind of codeFilter reminders
The hood has counted enough hours of fan time to ask for its filters: the mesh or baffle grease filters want a wash, or on a recirculating hood the charcoal filters want replacing. Most hoods count hours rather than measure grease, so the light comes on whether the filters are clean or not, and it stays on until it is reset with the key the manual names. A reminder that returns straight after a reset, or a hood that still pulls weakly with fresh filters, is worth a visit.
Usually leads toRange hood filter and baffle service
Cleaning or replacing what catches grease and odor: mesh and baffle filters, charcoal pads on recirculating hoods, and the grease channel.
Shows up asReading a Range Hood Error Code or Blinking Light
A range hood error code may appear as letters and numbers on a display, a light that blinks in a pattern, a filter reminder that will not clear, or a beep with the fan refusing to start.
MakeJennAir
JennAir hoods and downdraft vents are diagnosed at home, with the lift, the blower and the touch controls each tested on the call.
SourceJennAir Product Help: C - Displayed (vent hoods)
JennAir's help site lists C for its display vent hoods without naming the models; the charcoal filter on these hoods is expected to last about three years.
Before you book,
in this order.
Each step comes from JennAir's own guidance for C on its range hoods. Follow it to the end: the last card says whether this is a visit.
Remove the charcoal filter and run it through the dishwasher on the highest temperature with ordinary detergent.
Dry it in an oven for 10 minutes at 210°F or less to reactivate it, then reinstall it.
Hold FAN for 3 seconds to clear the C.
If the hood is ducted outdoors with no charcoal filter, hold + and - together for 3 seconds to disable the alarm; F flashes for 3 seconds to confirm.
Still there?
It usually turns into range hood filter and baffle service. Book with the code and the model number.
What not to do
C is a timer alarm about odor filtering and does not mean the blower is weak or the duct is blocked. It also does not appear on JennAir downdraft vents, which have no display.
What you may
notice with it.
The range hood problems C tends to arrive with. Answer these at the range hood before anyone is booked.
All problems
Where C usually leads
Range hood filter and baffle service.
JennAir
range hoods.
JennAir hoods and downdraft vents are diagnosed at home, with the lift, the blower and the touch controls each tested on the call.
JennAir range hood repairMore JennAir codes
Filter reminders on other makes
Wall-mount range hood
The chimney hood fixed to a bare stretch of wall above the burners, its canopy catching the rising smoke while a telescoping cover hides the duct that climbs to the ceiling.
Under-cabinet range hood
The slim hood screwed to the bottom of the wall cabinet over the burners, venting up through that cabinet or back through the wall, or cleaning the air and returning it to the room.
Island range hood
The hood that hangs from the ceiling over burners set into a kitchen island, open on all four sides, with its duct and wiring hidden inside a chimney that drops from above.
In JennAir's own words
After 120 hours of fan operation, the display will show “C” when the fan is active.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. JennAir's help site lists C for its display vent hoods without naming the models; the charcoal filter on these hoods is expected to last about three years.
JennAir C range hood repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about C.
Can I clear C myself?
Does C on my JennAir hood mean I must buy a new charcoal filter?
How do I switch off the C alarm on a ducted JennAir hood?
My JennAir hood shows both F and C. Which comes first?
Back to your everyday
Still showing C?
Three things make the booking useful: the letters or blink pattern exactly as they showed, the full model number from the label behind the filters, and whether the fan still moves air on every speed. With those, the technician arrives with half the answer already worked out.