Problem
No power at plug
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Cause
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Solution
- Reset circuit breaker in main panel or the GFCI usually located in a bathroom, garage, or kitchen.
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Problem
GFCI keeps tripping
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Cause
- Ground problem or defective GFCI
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Solution
- Use a high-grade model such as the Hubbell #GF5252I.
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Problem
One cable run not working
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Cause
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Solution
- Test cable for voltage. If none, it is cut. If there is very low voltage and the cable is hot, there is a short. Check all fixtures and splices for defects.
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Problem
Lamps are burning out prematurely
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Cause
- Excessive voltage at lamp
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Solution
- Drop the affected cable run down to the next lower voltage tap or increase wattage load on that cable to drop voltage. Also, some lamps are rated for a very short life such as the 4414 (300 hours). Use halogen lamps.
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Problem
The closest lamp to the transformer is burning out prematurely
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Cause
- Excessive voltage at lamp
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Solution
- The closest lamp will always have a higher voltage reading than the last lamp. Cable fixtures so that there is about 40' from first to last within a lighting zone. See system layout for details.
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Problem
Lamps have a yellow or golden tone
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Cause
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Solution
- Move affected cable to the next higher voltage tap or reduce load on cable. If possible, run additional cable to first fixture to reduce voltage loss.
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Problem
Lamp goes on and off when fixture is moved
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Cause
- Too much tension on socket leads
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Solution
- With spring type sockets, it is important to leave some slack so the socket contacts make a good connection to the lamp base.
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Problem
System is getting dimmer with age
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Cause
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Solution
- As non-waterproof splices corrode, they create electrical resistance, which reduces voltage.
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Problem
Photocell transformer is coming on too soon
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Cause
- Transformer is in dark location
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Solution
- In order to operate properly, the photocell must have a good look at daylight. Move to a brighter location.
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Problem
Fixtures have a white mineral deposit on them
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Cause
- Irrigation water is hitting them
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Solution
- Schedule the irrigation to come on after the lights have gone off. This is especially true with the 50 W spots — very hot.
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