
Airmax Aeration Systems are designed for low-maintenance and require
minimal scheduled maintenance. Cabinet inlets and outlets should be
kept free of debris and weed growth allowing normal ventilation.
• Always unplug system before performing any maintenance
or troubleshooting.
• Always unplug system and refer servicing to a qualified electrician
when cord is damaged or frayed or when compressor, power control,
compressor fan, or other electrical components are producing
unusual noises or odors.
• Always use parts that are supplied or approved by Airmax, Inc. Use
of other parts may result in poor performance and could create a
hazardous situation.
**Local environmental conditions may require more frequent
maintenance.
WARNING: Compressors are equipped with a thermal overload
switch. If temperature becomes high enough to trip the overload, the
compressor will shut down. It will then automatically start up when
temperature decreases as long as power is applied.
4. Maintenance**
EVERY 3-6 MONTHS – Air Filter: Clean/replace air filter.
Cooling Fan: Check to ensure cooling fan is operating. Hot air should be pulled from
the cabinet, not blowing in.
EVERY 6-12 MONTHS – Maintenance Kit: It is recommended to install a
maintenance kit every 6-12 months to ensure optimum performance.
EVERY 24-36 MONTHS – Membrane Sticks: We recommend inspecting and/
or cleaning the membrane diffuser sticks every 24-36 months, or anytime there is a
reduction in bubbles from the diffuser. To clean, use Airmax D-Scale™(#530298) and
a soft cloth.
5. Troubleshooting
IF COMPRESSOR IS NOT OPERATING:
ISSUE CHECK LIKELY CAUSE CORRECTION
Cabinet fan is not running.
Option 1: Check for power. Compressor and fan are not receiving power. Open cabinet and ensure the compressor and fan are
plugged into the power outlet.
Option 2: GFCI circuit tripped. Damage to electrical cord or low voltage from power
supply. Contact Airmax or local dealer for electrical
troubleshooting assistance.
Option 3: GFCI circuit not tripped. GFCI malfunction.
Cabinet fan is running. Check compressor for power.
Compressor is not receiving power.
Open cabinet and ensure the compressor is plugged into the
power outlet.
IF COMPRESSOR IS OPERATING:
ISSUE CHECK LIKELY CAUSE CORRECTION
No bubbles at any diffuser plates.
Option 1: No air leaks are audible in cabinet.
Compressor running louder and
possible excessive vibration.
Compressor air filter is dirty/clogged. Clean or replace air filter. NEVER re-install wet filter.
Option 2: Compressor operating normally or
making unusual noises. Exhibits
reduced pressure and/or air flow.
Compressor needs maintenance kit and possibly
new air filter.
Contact Airmax or local dealer with specifications for
maintenance kit. Clean or replace air filter. NEVER re-
install wet filter.
No bubbles at some diffuser plates.
Option 1: Check for leaks at all connections
in line and in cabinet. If none are
audible, carefully spray SMALL
amount of soapy water onto
connections and look for bubbles.
Vibration loosened connection or cracked fitting. Tighten loose connection or replace cracked fitting
as necessary.
Option 2: Are all flow control valves in
compressor wide open? Improper “balancing” of diffusers.
Adjust air flow valves on manifold in cabinet until all diffusers
operate properly. See Section 2. System Installation for
more information.
Option 3: Valves in cabinet are properly
“balanced” and no leaks
are evident.
Compressor beginning to lose compression and
needs maintenance kit.
Contact Airmax or local dealer with compressor
specifications for maintenance kit.
Large rolling bubbles instead of fine
bubbles at surface above one or more
diffuser plates.
Inspect each diffuser plate for malfunction. Diffuser membrane damaged, diffuser plate fitting
broken or diffuser plate is flipped over. Contact Airmax or local dealer for repair/replacement.
Compressor stops working for periods of
time, then restarts. Inspect cooling fan for proper function. Compressor over-heating due to bad cooling fan.
Contact Airmax or local dealer for fan replacement. If
possible, leave top of cabinet open for cooling. Otherwise,
unplug system until fan is replaced.
Compressor shakes erratically and is
making loud noises.
Option 1: Check for low voltage while
compressor is running.
Gauge of supply wires to circuit possibly undersized or
cabinet is plugged into extension cord.
If gauge of circuit wiring is incorrect, have electrician replace.
NEVER use extension cord to operate system
for continual use.
Option 2: Check for clogged air filter. Air filter in need of replacement. Clean or replace air filter. NEVER re-install wet filter.
ENGLISH
Watch the Maintenance Kit
How-To Video
9