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The UV System tries to start, flashes and then shuts down. What do I look for?

Flashes look shuts system tries UV
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The UV System tries to start, flashes and then shuts down. What do I look for?

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Check cables, caps, contactor (Lamp Contactor C2/C3), ballast and ignitor. Cables should be secure, capacitors should be within 8% of nominal, contactor should hold in when energized (and have the correct voltage coming out as was going in), and the ballast should output close to the same voltage that was input. There are easy steps to follow for checking capacitors and ballasts (if in doubt, call for more info), but the best way to check an ignitor is just to replace it with a new one.

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