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SYSTEM MAINTENANCE
To get the optimum performance from your SA41 power inverter, particularly under heavy appliance
loads, it is essential that the battery bank and the DC wiring are all in good condition. The small amount
of time spent on the suggested maintenance tasks that follow will maximise the reliability of your
system.
SA41 MAINTENANCE
Periodic maintenance of the SA41 inverter involves little more than checking for unobstructed
operation of the cooling fan, which is located at the rear of the inverter. Note that cooling air is drawn in
through vents underneath the inverter.
Suggested inverter maintenance should include:
1. Check for unobstructed fan operation. Clear away any dust or foreign matter from the fan grill
using a soft bristled brush. (Do not direct high pressure compressed air at the fan blades)
Note that the fan is designed to come on during heavy power demand.
2. Check between fins of the heatsinks and clean out any accumulated foreign objects, for example,
insect nests.
3. Verify that the air flow beneath the chassis is not restricted.
4. Clean external surfaces of the SA41 using a soft, lint free cloth, with polish and wax. e.g. Mr.
Sheen.
BATTERY MAINTENANCE
1. Every week, carry out a thorough visual inspection of all battery wiring, taking particular note of the
condition of inter-connections between cells.
IMPORTANT:
When working on batteries of such high capacity, it is essential that you wear protective clothing,
some form of eye protection and rubber-soled work boots. Please regard your batteries with a
great deal of caution, and if in any doubt, entrust this work to your installer.
2. Check that the stainless steel inter-connecting bolts are tight and have minimal corrosion. If
corrosion is evident, carefully follow the following procedure.
(a) Disconnect the system battery fuse before working on the battery bank.
(b) Unbolt the stainless steel bolts and nuts of any corroded connections and thoroughly clean the
join with a wire brush or file, taking extreme care not to short circuit any battery cells with any
tools.
(c) Re-assemble and smear a small amount of Vaseline or similar grease over the surface of the
joint to slow down any future corrosion.
3. Every month: measure the specific gravity (SG) of each cell using your hydrometer, to ensure that all
cells are performing correctly. Any serious imbalance should be reported to your system designer in
case remedial action needs to be taken.