How to Fix a Sign Light Fixture
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What can be wrong with a sign light fixture? How to Fix a Fluorescent Light in a Sign Fixture. © By: Dave Rongey |
Sign Light Fixture Problem
Electrical Question: What can be wrong with a sign light fixture?
Scott in Pennsylvania asks:
- I’m working on a sign that has five ballasts single bulbs per, and they are wired in parallel. Came to work one day and none of the bulbs were lit. I changed a bulb no good. I checked voltage on wires coming in the signage hot to ground reads 120v hot to neutral 192v neutral to ground 82v I’ve never in my years of reading voltage have I seen this any suggestions.
Thanks Scott.
Dave’s Reply:
Thanks for your electrical wiring question Scott.
Electrical Problem with a Fluorescent Light in a Sign Fixture
Application: Electrical Problem a Fluorescent Sign Light.
Skill Level: Advanced – Best performed by a Licensed Electrical Contractor, or Certified Electrician.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source to the Fluorescent Sign Light, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials for the Fluorescent Light should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in your specific area of Pennsylvania. A permit and inspections may also be required.
How to Fix a Fluorescent Light in a Sign Fixture
This electrical wiring project is about Electrical Problem a Fluorescent Light in the Room of a Home.
Fluorescent Sign Light Electrical Problem
- Scott, from the information you have provided, the power to the sign should be turned off and the wiring components carefully inspected by a qualified electrician.
- Identify the line side voltage of the ballast which is indicated on the ballast label.
- An electrician should check the power source at the circuit breaker with special attention given to all the wires of the sign light fixture circuit.
- Make sure the voltage is being measured correctly.
- Be aware that some sign fixtures are HO (high output) or VHO (very high output), which require specific lamps, ballasts, and sockets.
- If the ballast is faulty then a new ballast and new lamps should be installed.
- The lamp sockets should be checked as well for burn marks, and if faulty the sockets should be replaced as well.
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