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If you can unplug the central vac and plug it into a different outlet that you know is on a different breaker and test it out to see if it trips the breaker,or temporarily rewire the central vac to a different power supply.Make sure the breaker is the correct amperage for the central vac,last read the instructions to see if you need a dedicated circuit breaker,you might have to many accessories plugged into that outlet.
Keep it on. The purpose is to give you something to clean, a time or two, rather than have to replace the more expensive filter. I know it seems redundant, but all of the pieces filter better than just a bag. Also, if the bag gets any damp or wet material, it breaks and your next filters are the foam and paper filter.
Always use the foam filter when using the Shop Vac, keep your filters clean and it will operate more smoothly. When sucking water I usually take the foam filter off as well as the cylinder filter
H702 appears to be a Honeywell heavier duty for mid to large floor areas.I have not seen them but internally most Central vacs are VERY similar. Most central vacs have an exposed filter which should be inspected periodically for damage or cleaning and replacement. A hanging cloth filter is normally fine for 7- 10 years with periodic inspection by the homeowner. Look for tears, never pick up wet stuff. very simple. You can clean a cloth filter prior to inspecting with the round brush from another vac or a soft paint brush.
I found internet reference to an H702 bag but it may be an option for your vac. Some cv's have an additional or optional paper bag for allergy sufferers or removable cartridge filter which would be visible when removing the dust pail. regardless, the filter protects the motor from damage, periodically inspect when emptying. If dust gets through a damged filter it can leak into and blow a motor. As an cv ages a small degree of fine dust gets in no matter the brand, but most are fine for 10-12 years with no service.
If you see dust in the air exhausting or puffing from the vac, have the unit checked as this indicates dust which has run completely through the motor. If you see a small amount of black dust exhausting along your wall, it is normal from internal brush wear. Turn the vac on and off and listen to the motor as it winds down. If it growls or sounds scratchy or is squealing, that is an indication it needs to be serviced. Clean and inspect you pwer head every 4-6 months and change a smooth drive belt twice a year, broken or not as it will be stretched. o If this helps please post a response
You would not normally need to replace the filter unless it is damaged. Access is from inside the tank itself. Remove the bucket and locate the finger loop on the existing filter. Pull toward the inside of the bucket. Replace the filer by setting in it's track and snapping tight to the wall of the vac. Unless damaged you can save and clean the old filter for reuse.
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