Aquarium Air Pump FAQAir Pump Repair Q - My 7 month old Rena Air 100 runs fine for a few minutes then begins to emit vibration noise. When I put my hand on the unit it get quieter. How do I fix this? A - In order to figure out what is causing this extra noise I recommend you do the following. First, remove the bottom of the pump as if you were going to repair the pump. Inspect the diaphragm, valve block and magnetic arm. These three parts are the only moving parts that can cause noise. On the valve block check to see if it is seated in the slot properly ie. pushed down all the way into the slot. Make sure the diaphragm is attached evenly all the way around the valve block. Insure the magnetic arm is not hitting the sides of the case as it swings back and forth in the case. You can check this by turning the pump over with bottom off and plugging it in. Let it run that for awhile and see if the noise starts up or the vibration gets louder. If after doing all of this you don't see anything obvious, my next suggestion is reattach the bottom. The critical point here is that you make sure and press down hard on the bottom while you are putting in the screws. The noise suppression on Rena pumps rely on the base being firmly attached to the bottom of unit. We recommend using something to stabilize the top of the pump as you putting in the base screws. You can use a towell, etc. Now, if you still have a problem I would suggest sending it back to Aquarium Pharmaceuticals, Inc for replacement under the warranty.
Q - My air pump is two years old and is not as powerful as before. What can I do to fix this? A - It is time to replace the valve block and diaphragm. These parts come in a repair kit and the job can usually be accomplished in about 15 minutes.
Q - I need to order your rebuild kit for the rena 300. I was informed that the parts I need are part 702D1. A - You can order on line or call our office at 800-968-7362 to place your order using your MC,Visa,Amex or Discover card. We are here 9-5 Eastern time M-F.
Q - I need a magnetic arm for a Rena Air Pump model 300 . The part is not listed in your catalog. The pump is two years old. Thank you very much. A - Order on line or call our office at 800-968-7362 to place your order. You can pay by major credit card or send a check in advance.
Q - I have 4- Rena 400 air pumps,they appear to have taken on water. The check valves seem to have failed. The pumps are not putting out enough air. Are the pumps ruined? Can they be repaired? They are a year and a half old,so I would imagine out of warranty. Tell me what parts to order and how much and I will fix. A - As long as the coil has not been ruined by shorting out due to the water damage, you should be able to repair. You need to remove the bottom of the pump and inspect the magnetic arms, diaphragms and valve blocks. These are the only parts worth replacing. You may be able to see the damage. If the magnetic arms look OK then just replace the valve blocks and diaphragms. Cost per pump is about $30.00 for these pumps. Make sure when fastening the base back on the top part of the pump you push down hard to make sure the base fits tight. If not, you'll have air leaks and loose pressure. (Part numbers AP6841 and AP6842). Cost per pump is about $30.00 for these pumps. Make sure when fastening the base back on the top part of the pump you push down hard to make sure the base fits tight. If not, you'll have air leaks and loose pressure. You can buy on-line under our Parts Department. buy on-line under our Parts Department.
A - First, I’m not
sure if you have a Rena Air pump or not. We don’t make a model 600. Regardless, you need a tune-up kit. These consist
of a valve
block and diaphragm. Either one or both may need replacing after
so long a time. Also, check to make sure your air filter is not clogged or dirty this can also be replaced. Less
likely are bad magnetic arms. but these can also be replaced if need be. All of these items are available through
our on-line catalog in the Parts Department.
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