Problems with Aerzen blowers
asked 3 April 2017 asked by alexgabin (480 points)
Check to see if the drive belt isn't broken.
I've checked both the belts and the air filters and everything looks good
Hi, Did it work ok in the past? -Rotation direction? -Is it blowing? -Is the outlet valve open? If so, might there be a broken or dislocated pipe?
Hi, Indeed, I would investigate your valves (start up and pressure relief). On an Aerzen enclosed model, the startup valve can be cleaned. It should be located on the air vent on the outside of the casing. The pressure relief valve should discharge under the blower (the presence or absence of dust below is an indicator). Also check to see if there isn’t a blockage at intake.
There are two valves on an Aerzen blower. A round pressure relief valve can be found on the side of the discharge pipe. It opens on startup and usually closes 15 seconds later, once the blower is running. Another safety valve limits the output pressure. If one or the other is defective, the air escapes into the housing. These two valves should be inspected periodically.
Hi there, Check the outlet valve.
Sorry for my late response. Indeed I think that the outlet valve has a problem. I tried to take it apart, but I can't seem to find out what is wrong. I will try to post a picture of my blower tomorrow.
Hi, I had a similar situation to yours—also with Aerzen blowers. I checked the rubber outlet valves and found nothing. Then I investigated the variable speed drive, whose max speed had been mysteriously altered. It turned out one of the blowers had a very low flow. It must be said that at different speeds, you don't notice which one is turning faster or slower than the other.
If you don't hear any abnormal noise it means the blower is not producing air. Look for something other than the valves. Look at the discharge pressure.