To replace the bulb, please make sure the power is off and the power cord is unplug from the outlet. Using a dry towel, clean off the excessive water from the unit.
1- you can pull and peel out the rubber cap at the end; using a twist and turn motions, this would help. The cap is not glue or attach to the unit or the cord, it designed to come off.
2- once you got the rubber cap peel off the glass quartz, you will see layers of rubber seal inside the glass quartz.
3- using protective gloves, you can slowly pull the power cord so part of the rubber seal will come out. Once its out, you can start pulling them out. You can use some small object to help with this process, however please be careful of breaking or damaging the glass or most important, hurting yourselves.
4 – once you got the rubber seals out, you can swap the bulb out, making sure to put the spacer back at the end of the bulb.
5 – push the rubber seals back into the glass quartz and slide the rubber cap back into the UV.
NOTE: THE UNIT MUST BE FULLY UNDERWATER, HOWEVER YOU CAN LEAVE ABOUT 1″ ABOVE THE WATER IF YOU WORRY THAT WATER MIGHT ENTER THE UNIT. HOWEVER LEAVING MORE THAN 1″ ABOVE THE WATER, YOU ARE RISKING THE UNIT WOULD OVER HEAT AND BURN OUT.
There are so many dc pumps out there and all the impellers are pretty much the same or similar to each other. The most important part of keeping it clean and running without any issue is making sure the bearing is not stuck to the ceramic shaft and the calcium build up right behind the propeller.
Once you remove the impeller from the pump motor, please inspect the bearing inside the motor housing, make sure its there and if possible remove it. Place it to the impeller shaft, spin it or move it in and out making sure its loose. If its fit tight or you have to put some pressure or force into the movement. You need to clean the shaft and bearing. They should be loose and move freely.
Over time, the calcium also build up in the ceramic area right behind the propeller and in front of the magnet. right between the hole of the black plate.
Please follow the pictures instruction to identify the area and how to clean it.
To change out the control board, please follow the below steps.
– 1 open the lid
– remove all 4 screws, at each corner of the feeder
– lay the unit on it side
– side the top portion out
– disconnect the 2 quick connections, please make note of which connector below to which one, this way no mistake when you plug them back.
– discounnect the connections at the control board
– remove 2 nuts from the controller board using plyer
– install the new board and connect everything back to where it belongs
– slide the top back and put the screws back
Please follow the below pictures
Please carefully remove the dosing head by pressing down on both tabs on the side of the dosing head.