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Hunt dimming fd

Fluorescent light goes out when dimmed to lowest setting

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Ok - a couple of things, first - when a dimmer is set to minimum; zero to a barely perceptible level of light output is expected. Second, fluorescent lamps have a much shorter range of dimming that the standard incandescent lamps have. It is not unusual for a fluorescent lamp to remain off until the dimmer is at or above the half way point in the dimmer's range. Third, you can not dim a fluorescent lamp or fixture unless the lamp or fixture is specifically labeled as being "dimmable". Use of a dimmer to control brightness of fluorescent lamps and fixtures that do not clearly indicate they are designed for dimming or to control the speed of motors like those in "paddle fan & light fixtures" creates a dangerous fire hazard condition. Most CFL (compact fluorescent lamps) that readily replace the screw-in incandescent type lamps and are clearly labeled as dimmable, can be used with a standard dimmer. The traditional (non-CFL) fluorescent fixtures that have a internally mounted and hard wired internal ballast need a special dimmable ballast to operate.

Good luck!

Posted on Feb 04, 2012

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Posted on Jan 02, 2017

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SOURCE: Dimmer switch is not dimming

florecent bulbs wont dim unless they are dimmable.

Posted on Dec 25, 2008

  • 66 Answers

SOURCE: Dimmer doesn't turn off!

There is one more thing that you can try, turn the power off from the breaker and wait about 20 seconds, then turn back on. If that doesn't fix it you are probably right about the dimmer being bum. It is very rare that Lutron devices are defective. You can contact them directly and see if you can get it replaced since you no longer have the receipt. You may have to send it to them before they will send you a replacement but it beats spending another $50
http://lutron.com/CMS400/page.aspx?id=24679

Posted on Oct 19, 2009

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2005 cavalier dash lights not working. all fuses are goood. replaced cluster, dimmer switch, multifunction switch


Back lighting or warning lights ? check engine , ABS , air bags , seat belt , oil light etc... ?
Interior Lamps Dimming
The second group includes lamps which may be dimmed. This group may use a combination of vacuum fluorescent (VF) illumination and incandescent lamps.
• Power window switches
• HVAC control head assembly
• Radio
• The instrument panel cluster (IPC)
When the ignition switch is turned to the ON position, the vacuum fluorescent (VF) display (radio) turns on at maximum brightness. When the park lamps are ON all incandescent back lighting turn ON at the dimming level indicated by the IP dimmer switch. At the same time all vacuum fluorescent (VF) displays dim to match the indicated dimming level. When the headlamp switch is placed in the PARK position, the park lamp supply voltage circuit provides an input to the body control module (BCM). The BCM then supplies voltage to the instrument panel dimmer switch through the instrument panel dimming lamps control circuit. The setting of the instrument panel dimmer switch determines the amount of voltage that the instrument panel dimmer switch supplies to the BCM through the instrument panel dimming lamps low reference circuit. The BCM then sends a pulse width modulated (PWM) voltage to all the interior lamps. All the vacuum florescent (VF) and incandescent back lighting lamps are provided a specific voltage and are then grounded. When the headlight switch is turned to the PARK or HEADLAMP position, all incandescent back lighting turn on at the dimming level indicated by the IP dimmer switch. When the IP dimmer switch is moved from MIN to MAX, all vacuum fluorescent (VF) displays, as well as all incandescent back lighting respond from Minimum intensity to maximum brightness in response to the IP dimmer switch.

I would have it checked for DTC'S - diagnostic trouble codes stored in the BCM !
DTC B2624 Display Dimming Input Range/Performance
The body control module (BCM) supplies voltage to the instrument panel dimmer switch through the instrument panel dimmer switch signal circuit. The dimmer switch varies the voltage and returns the new voltage to the BCM through the dimmer switch signal return circuit. The BCM uses this voltage to determine the illumination level of the instrument panel lamps.

DTC B2625 Display Dimming Pulse Width Modulation (PWM) Output Circuit Range/Performance
The body control module (BCM) receives a variable voltage from the instrument panel (I/P) lamp dimmer switch. The BCM uses this signal in order to vary the illumination level of the I/P lamps. The I/P dimming lamps output from the BCM is a pulse width modulated voltage supply used to light the I/P lamps. If a malfunction occurs in the I/P dimming lamps output circuit, this DTC is set.

DTC B2662 Park Lamp Switch Circuit Malfunction
The park lamps are controlled by the turn/headlamp switch. Positive battery voltage is supplied to the switch through the EXT LP fuse. When the turn/headlamp switch is placed in the park or head position, battery voltage is supplied to the park lamps. The body control module (BCM) is also connected to the park lamp circuit to sense whether or not the park lamps turn ON when the low beam or high beam headlamps are turned ON. The BCM also uses the parklamp battery positive voltage to power the instrument panel (I/P) dimmer output circuit. If the BCM senses that the low beam or high beam headlamps are ON and the park lamp input is not active, DTC B2662 sets.
Do the park lamps work ?

Jun 11, 2017 | Cars & Trucks

1 Answer

I have a 2002 Buick Rendezvous and the radio and heater control backlights have shut off simultaneously and now only the vent control and trunk release lights work.


I would take a look see at the ground circuits for the none working lights . The incandescent back lighting lamps are then grounded at G200, G301 and G302. You would need factory service info for the location of the grounds .Like this from buick
G200
Right side of the I/P, secured on the underside of the cross car beam, behind the I/P compartment . The I/P compartment is the glove box ,don't know why they just don't say that . You could also check out the power and ground from the componet that's not working ! You can find factory like service info. from alldata
http://www.alldata.com/ . Check out some videos on youtube

https://www.youtube.com/watch?v=efKoWifdcag&t=224s

Interior Lamps Dimming
The second group includes lamps which may be dimmed. This group may use a combination of vacuum fluorescent (VF) illumination and of incandescent lamps.
• The door switches and the window switches
• The HVAC control head assembly
• The radio
• The instrument panel cluster (IPC)
• The steering wheel controls
• The heated seat switch
• The HUD switch
• The lift glass window release switch and traction control switch
When the ignition switch is turned to the ON position, the vacuum fluorescent (VF) displays (radio and HVAC control assembly), incandescent lamps, turn on at maximum brightness. When the park lamps are on and the ambient light sensor indicates low light conditions, all incandescent back lighting turn on at the dimming level indicated by the IP dimmer switch. At the same time all vacuum fluorescent (VF) displays dim to match the indicated dimming level. The BCM L fuse in the console fuse block, supplies battery positive voltage to the BCM. The I/P courtesy lamps supply voltage circuit of the BCM, supplies battery positive voltage to all the dimmable lamps. When the headlamp switch is placed in the PARK position, the BCM will then dim the interior lamps to the dimming level indicated by the IP dimmer switch. When the driver selects a dimming setting by moving, the IP dimming switch potentiometer, all incandescent back lighting lamps are provided with a specific voltage. The incandescent back lighting lamps are then grounded at G200, G301 and G302. When the IP dimmer switch is moved from MIN to MAX, all vacuum fluorescent (VF) displays, as well as all incandescent back lighting respond from Minimum intensity to maximum brightness in response to the IP dimmer switch.
The driver may select parade mode by manually turning on the park lamps during daylight conditions. The front park lamp circuit supplies voltage to the instrument panel cluster, radio and HVAC assembly for a park lamp on input, and the displays will become full bright.

Dec 03, 2016 | 2002 Buick Rendezvous

1 Answer

Which fuse is for the instrument panel back lighting?


Does the radio play ? Are any other back lighting components not lighting ? Does the HVAC control panel light up ? You probably need new radio !
The second interior lighting group includes lamps which may be dimmed. This group may use a combination of vacuum fluorescent (VF) illumination, LED illumination and incandescent lamps.
When the ignition switch is turned to the RUN position, the radio VF display turns ON at maximum brightness. When the park lamps are ON, all incandescent and LED back lighting turn ON at the dimming level indicated by the instrument panel (I/P) dimmer switch. At the same time all VF displays dim to match the indicated dimming level. The panel dimmer switch potentiometer is an input to the body control module (BCM). When the driver selects a dimming setting by moving the I/P dimming switch potentiometer, all incandescent back lighting lamps are provided with a specific voltage. When the I/P dimmer switch is moved from MIN to MAX, all VF displays, as well as all incandescent back lighting respond from minimum intensity to maximum brightness in response to the I/P dimmer switch.

Dose

Jul 14, 2015 | 2008 GMC Sierra 1500

1 Answer

I have a coleman 5317 RC series lantern that wont go into the dim mode what can I do


Hello. I've just looked at several Coleman lamps, some have krypton bulbs (mainly battery powered), some spiral fluorescent bulbs (mainly mains powered/charged). If this one is yours http://www.coleman.com/Parts/100/parts-lanterns/5317-702/remote-control-pack-away-family-size-lantern# then it appears yours has a spiral fluorescent bulb. Gas discharge bulbs commonly are fired up by an initial high voltage pulse then followed by a continuous ac medium voltage (say 80 volts or so) to give a FIXED LIGHT OUTPUT.
THIS DOES NOT ALLOW CONTROLLED DIMMING. Dimming can usually only be done on an INCANDESCENT TYPE bulb eg an older type tungsten filament bulb. These are however much less efficient.
So in summary, if you do have a fluorescent bulb, I don't know why your remote indicates you can dim it. You could try switching the bulb for an incandescent type, but this should only be attempted by qualified persons. Check over the user manual again. Good Luck.

Jun 17, 2014 | Coleman 5317-700 lantern - 8d square...

1 Answer

Instrument Panel Lights


Daytime headlight issue ? No , no sensor behind the front bumper . No Daytime time head lamp issue , doesn't turn on the instrument panel light's . This is more then likely a remote dimmer module problem .
Interior Lights Dimming Circuit Description (Pontiac)
When the park lights are on, battery positive voltage (B+) is applied via CKT 32 (YEL) to the remote dimmer module. The interior dimming switch in the lamp dimmer switch is a variable resistor which applies the dimming input via CKT 44 (DK GRN) to the remote dimmer module. The potentiometer in the lamp dimmer switch cannot provide enough current in order to operate the incandescent lights. The remote dimmer module amplifies the current, applying a variable voltage to the incandescent lights. As the amount of current increases, the lamps become brighter. As the amount of current decreases, the lamps become dimmer.
The radio, heater and A/C control assembly, instrument cluster, and passenger climate control each has a vacuum fluorescent (VF) display. When each module receives an input that the ignition switch is turned to the RUN position, each module activates the VF display at the full intensity. When the park lights are on, the radio receives the dimming level from an input on CKT 8 (GRY). The radio then relays this information to any other modules with VF displays. All modules with VF displays then adjust the dimming level of their VF display in order to match the level of the incandescent lamps.

May 16, 2017 | 1998 Pontiac Bonneville

1 Answer

WHEN DIMMING IN MINIMUM POSITION THE LIGHTS START BLINKING


Which dimmer do you have. So I can look up the manual.
Are you using a fan dimmer, or light dimmer?
Does the dimmer feel warm to touch? or hot?
What does the dimmer control? Incandescent? Fluorescent?
How many total watts are being dimmed?
Is this a new dimmer or old dimmer that started having a problem?
Add a comment with as much detail as possible for best available answer.

Sep 08, 2012 | Lutron DVF-103P-277 Diva Fluorescent...

1 Answer

My sony kd36fs130 wont turn on .the green power light clicks then the light dims ans I can hear a tv coming on sound but stops when the light dims


From your description the flyback transformer has failed causing the high voltage to load down, if the TV is 10 years old or more, consideration should be given investing in a new set.

Jun 22, 2011 | Sony FD Trinitron WEGA KD-36FS130 36" TV

1 Answer

I HAVE A WESTINGHOUSE FLAT SCREEN AND THE PIC COMES ON FOR A SEC THAN GOES OFF? WHATS UP DOES ANYONE KNOW?


I assume this is an LCD set. One possibility is the backlight inverter is shutting down because one or more of the fluorescent light tubes is bad. If part of the screen is pinkish or dim, that is almost certainly the problem. If you still hear sound, then you can verify that it is a backlight issue by shining a flashlight on the screen at an angle and looking for a picture in the illuminated area (it will be dim and low-contrast). Seeing a picture in this way is proof that the backlight is not working; not seeing one doesn't prove anything because some sets shut down completely if the inverter stops running.

These sets use Cold Cathode Fluorescent Lamps (CCFL). They are very thin tubes, and have a single wire on each end that must be soldered. The tubes are very delicate and the soldering requires an expert since heat cannot be applied for more than three seconds. Just so you know you won't find them in the light bulb section at Walmart...

If the set shuts down completely (sound goes off also), you may have a failed capacitor in the power supply. It's just barely good enough to get the set going, but is inadequate when it starts to get warm.

Oct 23, 2010 | Westinghouse Televison & Video

3 Answers

How many dimmers types?


Certain dimmers can control standard incandescent lamps that use 120 volts while other dimmers can control low voltage xenon or halogen light sources that use 12 or 24 volts.

Aug 27, 2008 | Lutron Electronic Low-Voltage...

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