Deltec 39 watts UV Sterilizer installation - problem

[rudrasreef]

Dear Forum members,
Solicit your help & advice to address a problem I am facing.
Yesterday i installed a brand new Deltec 39 watts UV Sterilizer and post installation upon powering up it has been flashing a red led with a buzzing sound.
According to my knowledge I have set up properly (mounted vertically on the wall with water moving up) and is mated with a 1000lph eheim pump.
On the adapter it's written that if the red light flashes accompanied with a buzzing sound there is a problem with the lamp fitting.
However, I did check the fitting but found no issues. the lamp filament looks ok to me.
No moisture inside the quartz tube as well.
https://reef-aquarium-store.com/deltec-uv-device-type-391-39-watt

Can anyone throw light on possible causes.

Thanks in advance,
Rudra

 

[KrisReef]

well.
https://reef-aquarium-store.com/deltec-uv-device-type-391-39-watt

Can anyone throw light on possible causes.

Either a faulty lamp holder or a faulty warning light. Contact the manufacturer for their recommendations on this issue.

 

[mattb2989]

Just fyi deltec have release a 48w version thats nearly half the size of the 39w unit. Also a 1000lph pump maybe too small for your uv. After head loss and restrictions from elbows youll be considerably less. Im running a 2500lph on mine at 50% im still only getting around 900lph