Charles Austen Enviro ET150 Operating instructions

To start, unplug the pump from the mains.
Unscrew and remove the cover from the air
pump.
Unscrew the chamber cover at one end of the
pump. Separate the chamber cover at the seam
to expose the screw holding the white round
plastic diaphragm depressor in place.
Unclip the diaphragm face to expose the
diaphragm and chamber block.
Unscrew the chamber block and pull it apart. Remove the valves from the chamber block,
take note of the valve formation.
Pull the new valves through, you should hear a
‘snap’ sound once secured in place.
Cut the excess rubber off from the valves and
discard.
Screw the chamber block back together
ensuring the rubber seal between them lined up
properly. Repeat this process on the opposite
side of the pump.
Undo the bolt from the diaphragm.
*ET150 - ET200 (Same procedure for alarm equivalent models)
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STEP 1 STEP 2 STEP 3
STEP 6STEP 5STEP 4
STEP 7 STEP 8 STEP 9
SERVICE INSTRUCTIONS

Remove the diaphragm frame and peel off the
worn diaphragm.
Replace the worn diaphragm with the new one
provided in your service kit. Make sure the
diaphragm has been pushed into the grooves
of the diaphragm frame. Repeat this process on
the opposite side of the pump.
Remove the worn magnet and replace with the
new one provided.
Connect the chamber block and diaphragm
together and screw back into place. Repeat on
the opposite side of the pump.
To change the filter unscrew the pump lid. Remove the dirty filter and clean away any dust
or dirt that has been collected.
Replace the dirty filter with the new one
provided in our service kit.
Note: Before screwing the pump back together
ensure the safety switch button is pushed down.
If this step is not completed then the pump will
not run.
Finally, put housing back together ensuring the
screws are secured down properly.
*ET150 - ET200 (Same procedure for alarm equivalent models)
[phone]CONTACT US: [email protected] WWW.CHARLESAUSTEN.COM
STEP 10 STEP 11 STEP 12
STEP 15STEP 14STEP 13
STEP 16 STEP 17 STEP 18
SERVICE INSTRUCTIONS

WARRANTY & TROUBLE SHOOTING
TROUBLE SHOOTING
If you are experiencing frequent diaphragm failures, please check for excessive back pressure against the pump. Adding
more diffusers, ports, or putting a tee in the line with a ball valve on the third side of the tee should resolve this.
Ensure you open the ball valve fully before slowly closing until you find the spot where maximum air flow with minimum
back pressure is achieved.
In the unlikely event that you are experiencing problems with your Enviro® pump, please consider the following:
Possible Cause Solution
Overheating causing the
thermal cutout to activate
•Check for a clog or blockage in the airline to stop excessive back pressure overheating the
pump this can also cause premature diaphragm failure.
• Ensure the pump is the correct size for the application. If under sized not enough air will be
produced, if over sized excessive back pressure is caused, overheating the pump.
• If oversized, drill a small hole in the rubber elbow on the pump to allow a small amount of
pressure to escape. Leave to cool and then try pump again.
Pump gets hot and shuts off
Torn diaphragm • Replace diaphragm by following our service instructions.
• If you are experiencing frequent diaphragm failures, please check for excessive back pressure
in the system, as above.
Pump not pushing out air
Rust inside pump •If the pump is getting wet inside, rust will appear causing increased friction and premature
failure.
• If the pump is wet inside, the warranty is no longer valid. Use a wire brush to remove rust from
the coils, once clean and dry, reassemble and try the pump again.
If the guidelines above have been followed, the pump is defective and may be in need of replacement. Please contact
Charles Austen Pumps Ltd on [phone].
We will need to have the air pump returned to us or a photo provided of the inside of the pump and diaphragms. This
ensures that the pump is not failing due to damaged diaphragms or rust.
Problem
Check for water, pump
may have flooded
• Remove pump from the system and allow to dry.
• Retest pump only when completely dry.
• Water damage can damage the pump beyond repair.
Pump trips electric
Our two year warranty cover does not cover diaphragm failures or magnet bars due to being wear and tear parts.
All Enviro® pumps are covered by a two year warranty on the pump motor. To validate this warranty, the aerator must be
serviced on a yearly basis. We recommend that the consumables including the diaphragms and filter are changed at this
point.
The wear and tear parts are outside the two year warranty but are covered by a year’s warranty
providing they have been used correctly and not subjected to back pressure or water damage.
Please contact Charles Austen Pumps on [phone] to purchase a service kit or
for further help with servicing your pump.
This warranty is only valid for pumps that are used as recommended.
[phone]CONTACT US: [email protected] WWW.CHARLESAUSTEN.COM