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3 way dimmer problems

Discussion in 'Home Cinema Building DIY' started by serdar13, Jul 31, 2003.

  1. serdar13

    serdar13
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    I have just got an electrician to rewire my new home and install halogen low voltage lights in the dining and living rooms (4x 50w in each room).

    Also, 2 uplighters as side wall lights (100w each).

    My problems started when I tried to install a push on 3 way dimmer to control the living room 4 low voltage lights and the 2 side wall lights. The dimmers work but the range is not that good. Once I push them on the lights come on but once I try to dim the lights it decreases quickly so not using the full range of the dimmer leaving me turning it past half way with nothing happening.

    I have a single dimmer for the dining room controlling 4 identical lights and it works fine. All 4 sets have transformers installed and have swapped the 3 way dimmer just in case the dimmer was faulty.

    I am considering installing a 2 way dimmer and a 1 way dimmer to see if the problem goes away or makes no difference at all. The dimmer states that it has a range of 60 - 400w

    Can anyone help........PLEASE????
     
  2. JohnS

    JohnS
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    Could it be a volt drop problem...are the lights in the sitting room on similar cable lengths between the transformer and the light as the ones in your dining room?
     
  3. serdar13

    serdar13
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    yes they are the same lengths.
     
  4. JohnS

    JohnS
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    If you've swapped the dimmer switches over then the next thing to suspect would be a high resistence joint somewhere so check all the connections.

    If that doesn't work then I have no more ideas!
     
  5. themadhippy

    themadhippy
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    i assume you mean a 3 gang dimmer?
    Have you wired up the dimmers correctly?
    is the dimmer designed for an inductive load?
    have you tried the 1 gang dimmer from the dinning room on each of the 3 individual circuits?
     
  6. richgtfc

    richgtfc
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    Most dimmers are designed for use with normal bulbs. You need a special type for ones that dim halogen lights with a transformer (well that's what it said on the back of the packet of the dimmer I bought from B&Q). Maybe that's your problem??
     
  7. serdar13

    serdar13
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    I will be trying a single and double gang dimmer tomorrow to see if the problem is still there.

    Fingers crossed!
     
  8. mediamogul

    mediamogul
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    Most dimmers state 400w but look in the small print and it says if halogen used max load 200w. Well mine does anyway.
     

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