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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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light out indicator wont turn offViews : 983 Replies : 4Users Viewing This Thread : |
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Oct 1st, 2016, 21:54 | #1 |
New Member
Last Online: Mar 25th, 2021 17:56
Join Date: Oct 2016
Location: stevenage
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light out indicator wont turn off
I have a light in the dashboard that indicates a bulb is out, checked all lights and yes the parking light passenger side was out, so I changed it and the light is still on. tried a different bulb and it went white.
the bulb I took out was silver in colour not burned out, the only bulbs in Halfords are clear. need some advice and help |
Oct 1st, 2016, 23:53 | #2 | |
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Last Online: Jun 20th, 2024 16:07
Join Date: May 2016
Location: Cornwall
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Oct 2nd, 2016, 15:30 | #3 |
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Last Online: Jul 1st, 2024 18:30
Join Date: Jun 2011
Location: Milton Keynes
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In my experience-
The 'silvered' bulb is just a bulb on its way out, unless it looks positively deliberately chrome plated, so a clear one would be the right replacement. Bulbs going white are often due to water getting in the light fitting and on the bulb while it is turned on.
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David V70 2.5 10v Torslanda Manual 98 Sreg |
Oct 3rd, 2016, 09:12 | #4 |
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Last Online: Yesterday 16:33
Join Date: Feb 2006
Location: Amersfoort (NL)
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Balance
The light out indicator works like a pair of scales; if the NS and OS light system it is out of balance the indicator will light up. It is intended to light up if the balance is disturbed by a defective light bulb, but a different wattage will have the same effect. Or bad earthing of the fitting. I don't know how sensitive it is, but I can imagine that even cheap Chinese replacement bulbs with a large tolerance on the indicated wattage might trigger the indicator.
For the same reason you cannot just take power from one of the rear light units for a trailer or third braking light. Also two broken lights NS/OS will not trigger the indicator... |
Oct 3rd, 2016, 12:33 | #5 |
Premier Member
Last Online: Jul 25th, 2024 12:16
Join Date: Sep 2014
Location: Bristol
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What Rversteeg says ^^
I try to buy 'premium' bulbs when changing them, and change them in pairs. The last time mine came on, changing the bulb failure relay solved the problem. |
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bulb, parking light, parking lights, warning light |
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