Is the "vacuuming service" really a big deal?

Not sure where it was discussed, but it’s hugely unlikely to be the actual failure mode.

Nearly all HA mics were designed to withstand explosive decompression, so a few minutes of cannula suctioning isn’t going to cause an issue.

If there’s goretex screens in play, then the material ahead of the mic, might cause a problem. Usually it’s misted sticky or charged particles that cause the greatest problem, either by blocking the fine mesh of the internal mic screen or by stripping the diaphragm/electret of charge.

The failure mode on the Quattro’s that I’ve had problems with is very odd. Walking, talking, chewing, loud noise all seem to reactivate external mic input but the mic input dies away if I’m just sitting around. All the failed Quattro’s I’ve had, too, worked fine just after booting but die away just sitting around. Jostling the HA body or the receiver wire reactivates the mic, too. Streaming is always stellar, even on a failed device.

One thing that I’ve noticed is that all Quattro’s but my latest left replacement have somehow accumulated gunk internally. When one looks at the bottom of the HA body at the clear plastic window over the internal serial number, on all previous Quattro’s, the inside of the window has accumulated debris like very fine dandruff, dust, dirt, obscuring the serial number. So I’ve also been wondering if as originally manufactured, the Quattro’s don’t have high enough dirt resistance (the IP rating is 58) whereas the Ones have an IP 68 rating as do the Marvels and the Paradises as well. So if dust and dirt had anything to do with the problems I’ve experienced, I’m not sure why walking, talking chewing, and other movements reactivate the sound. Sweat-induced corrosion has been mentioned as a possibility in the past but in the last two years, especially with the pandemic, I haven’t been doing any real sweating and don’t wear the devices outdoors when it’s hot out in Texas.

@Um_bongo said:

Nearly all HA mics were designed to withstand explosive decompression, so a few minutes of cannula suctioning isn’t going to cause an issue.

It’s not the air pressure reduction that’s my concern with a Jodi-Vac. It’s the vibration of the pump transmitted down the tubing to the cannula tip that I think might be a problem. If one puts the canula tip against the back of one’s fingernail, one can feel a decided vibration transmitted from the suction tip to the fingernail. My worry is that I’ve literally been vibrating my HA’s apart with the suction tip. I’m still using the Jodi-Vac but rather than firmly pressing it against the top of the microphone openings, I’m lightly skimming over the openings in hopes of transmitting minimal vibration to the HA body at the point of contact. The thing that’s different about my use vs. a HCP’s use is that I’m vacuuming everyday and in the past, I was pressing the tip very firmly against the outer part of each microphone opening.

Given microcircuitry with dimensions in nanometers, I’m always amazed that smartwatches and smartphones can use serious vibration as a means of alerting the user to alarms and notifications without eventually self-destructing. Don’t know if it requires a special type of microchip construction but I would hope that HA’s are made to the same vibration-resistant standards as smartphones and smartwatches, etc. I’m suspicious that ReSound HA’s are not.

The only thing you’d expose with that sort of vibration is a dry solder joint that would have failed anyway. Bear in mind that full BTE hearing aids (and therefore the standard for all amplifier circuits) are designed to deal with vibration from the receiver at anywhere between 50hz and 10Khz.

A Jody-vac isn’t going to shake anything important; it’s massively unlikely to cause issues. Microphones and Receivers are drop tested from a few metres to evaluate reliability. There’s barely anything to break off a microphone anyway; the bits are physically welded and pressed together.

I’d say you have loads more risk from perspiration blocking the mic screen, getting rid of that with a Jody-Vac makes good sense.

The most common failure we have with Quattros (and we’ve sold a few pairs) is due to the battery and charging system being a bit temperamental. Though some seem to die from sweat ingress too. If you can push for a five year Resound warranty, it might help.

Quite some time ago, I bought on Amazon the Serene Innovations HC-200 Hearing Aid Vacuum Cleaner ( about $79.00). It is a little bit heavy but after figuring out how to use it, I found it to be vey useful. For instance, at least once a week I clean the vents in the molds and remove any traces of wax buildup in the wax plugs without having to make an appointment with my audi - without having to wait sometimes 2 weeks for one and drive 15 miles for it. And it saves a little bit by not having to buy the wax plugs for my Oticon Opn S 1 more often.

My first two hearing aids were paid for by ME… everything was included, including office visits, cleaning, domes, etc. Now, with my new aids, which were paid for by my insurance policy, I still get initial domes and guards, but any office visits after the first 90 days, I have to pay for, excluding warranty work. Still well worth it since I save $5000 on the purchase, AND I get new aids every two years. So any services may be limited by insurance or package offered.

I took my first hearing aid to Listen Up Canada for a cleaning.

I paid.

The tech brought it back; said he had cleaned the hearing aid. He said the microphone didn’t work and I needed new hearing aids.

I wasn’t happy…

(wikipedia search shows that listen up canada was owned by a real “character”…he had quite the history.

My wonderful audiologist who provided my first Phonak hearing aids through workman’s comp sold her business. Turned out it was owned by Listen Up Canada. That had not been disclosed to her during the sale. Though I trust her completely, she was mislead by Listen Up Canada. I went there once after she left, and never returned. They did not support Phonak hearing aids.

My awful audiologist followed a similar path. I went there for about 8 years. They sold me my Phonak B70 Hearing Aids. After numerous complaints saying that the B70’s didn’t work, Peel Adiologist was bought out by Connect Hearing. I’ve left them because my Phonak B70 hearing aids didn’t work the way they were set up There is some good news…but it didn’t help me get service there. Connect Hearing is owned by Sonova. Sonova bought Phonak. Internet comments by Connect Hearing employees are not favourable.
Key: as I said here and confirmed by other posters who have much more knowledge than I do–you have to choose your hearing aid care provider well.

That’s a real challenge! And it’s a reason why forums like this one are so important.

DaveL

Yes, that’s my plan after this appointment.