Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-25-2016, 10:46 PM   #1
2 Rivet Member
 
waldosgone's Avatar
 
2015 20' Flying Cloud
Eagle River , Alaska
Join Date: Mar 2016
Posts: 49
Progressive Dynamics 4655 (PD4655) noise

I upgraded the Parallax converter to PD4655 and it's been working well but there now seems to be a sound coming from it that wasn't there before.

It sounds like a computer hard drive needle moving across the platter and I initially thought it was a fan but I watched both fans and can't tie the sound to a fan activation. I also checked the fridge fan and it wasn't moving when the sound was being produced.

Has anyone else had this issue and diagnosed/fixed it?
__________________

__________________
waldosgone is offline   Reply With Quote
Old 05-31-2016, 09:57 AM   #2
2 Rivet Member
 
StagrLee's Avatar
 
2012 25' FB Eddie Bauer
Austin , Texas
Join Date: Aug 2012
Posts: 98
I have the same noise. Sounds exactly like an old hard drive!
__________________

__________________
"Stagr" Lee
2012-1/2 25' Eddie Bauer
StagrLee is offline   Reply With Quote
Old 05-31-2016, 10:20 AM   #3
Rivets?
 
nvestysly's Avatar

 
1992 29' Excella
Van By The River , Georgia
Join Date: Feb 2002
Posts: 1,399
Be sure to double-check the fans. It may appear the noise is not coming from the fans but that's the most likely case in my opinion.

In my career as a mechanical engineer in the electronics industry I specified fans for electronic equipment and diagnosed many fan/noise problems. It may appear the fan is running fine but more diagnosis is needed.

You can easily stop the fan by gently but firmly pressing your thumb on the center rotor of the fan hub. Keep your fingers away from the blades - just push on the center hub to create sufficient friction to stop the fan. Even if you can't stop the fan you'll be able to slow the rotation sufficiently to determine if the noise is coming from the fan.

In addition, a friend of ours had exactly the same noise problem. Looking at the fans rotate provided no indication of problem. Slowing and stopping the fan provided instant identification of the noise source.

Be aware these fans start and stop on their own depending on load factors in the PD unit. During startup is when the noise sometimes comes from the fan. Once the fan is running the fan may not make noise.

Another source of noise is the fan control circuit that turns the fan on and off. Many of these circuits use a device or series of devices to increase and decrease voltage to the fan. These circuits can sometimes hum.

If it's the fan it's a simple fix and may be covered under warranty. Call PD to check. Even if it's the circuit board it can be replaced.

By the way, the friend who experienced this problem had an out-of-box failure. That is, the noise was present from day one. PD may be aware of the issue and willing to fix/replace your unit.
__________________
Lucius and Danielle
1992 29' Excella Classic
1996 GMC Suburban C2500 7.4L
2005 Chevrolet Suburban K2500 8.1L
Got a cooped-up feeling, gotta get out of town, got those Airstream campin' blues...
nvestysly is offline   Reply With Quote
Old 05-31-2016, 11:04 AM   #4
Rivet Master
 
1989 34.5' Airstream 345
Hanalei, /Chino Valley , Hawaii / Arizona
Join Date: Jul 2013
Posts: 789
Yes progressive Dynamics has had a bad batch of those units. I went thru two units that made too much noise right out of the box. Before finally getting one that ran quietly.
They were very responsive to the issue. And finally did a bench on the one that did work correctly, before they sent it out.

Sure was a struggle, but now I can change it out in record time after all the practice.

Cheers Richard
__________________
tevake is offline   Reply With Quote
Old 05-31-2016, 08:47 PM   #5
Rivet Master
 
TG Twinkie's Avatar
 
1974 Argosy 26
Morrill , Nebraska
Join Date: Nov 2009
Posts: 4,738
Images: 2
Blog Entries: 5
I did not know hard drives had needles. Learn something new every day.
__________________
Knowledge: "A gift to be shared. A treasure to receive."
TG Twinkie is offline   Reply With Quote
Old 06-04-2016, 12:21 AM   #6
Rivet Master

 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 3,272
Wondering if you guys have an update on this, in terms of tevake's comment about the mfg. having a batch of bad units? We are thinking of making the same upgrade.

Thanks,

Peter


Quote:
Originally Posted by waldosgone View Post
I upgraded the Parallax converter to PD4655 and it's been working well but there now seems to be a sound coming from it that wasn't there before.

It sounds like a computer hard drive needle moving across the platter and I initially thought it was a fan but I watched both fans and can't tie the sound to a fan activation. I also checked the fridge fan and it wasn't moving when the sound was being produced.

Has anyone else had this issue and diagnosed/fixed it?
Quote:
Originally Posted by StagrLee View Post
I have the same noise. Sounds exactly like an old hard drive!
__________________
OTRA15 is offline   Reply With Quote
Old 06-04-2016, 02:16 AM   #7
2 Rivet Member
 
waldosgone's Avatar
 
2015 20' Flying Cloud
Eagle River , Alaska
Join Date: Mar 2016
Posts: 49
All,

Some follow up for all those who are interested:

1. I contacted Progressive Dynamics and they are forwarding a new unit to me so I can swap out the old one. They were very accomodating and their service department seems to think it's a bad transformer.

2. When I talked to their service department based on the light on the circuit board my charge wizard may not have been coming out of bulk charge. This contributed, IMO, to both of my batteries boiling over. I came home to the rotten egg smell and once I got near the battery box I knew what had happened. This accelerated my timeline to get 2x 6v batteries installed. I'm having the battery box modified and won't hook the new batteries up until I swap the charge controller.

I'll let you know as I find out more.
__________________
waldosgone is offline   Reply With Quote
Old 06-04-2016, 04:56 AM   #8
Rivet Master

 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 3,272
Thanks waldosgone for the update.

Peter
__________________
OTRA15 is offline   Reply With Quote
Old 06-04-2016, 05:06 AM   #9
Rivet Master

 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 3,272
Quote:
Originally Posted by lewster View Post
. . .
If you have the combo power center, then you need the PD-4655, which is a direct replacement.
. . .
Wondering if you could chime in here about the apparent bad batch of Progressive 4655 units? Do you feel that this possible manufacturing problem is safely behind us?

Thanks,

Peter
__________________
OTRA15 is offline   Reply With Quote
Old 06-04-2016, 05:45 AM   #10
Rivet Master
 
Dingo Girl's Avatar

 
1967 17' Caravel
Cadillac , Michigan
Join Date: Jul 2009
Posts: 551
Images: 3
Thanks I'll be watching this thread for updates.
__________________
Dingo Girl is offline   Reply With Quote
Old 06-04-2016, 05:49 AM   #11
Rivet Master
 
Wayne&Sam's Avatar
 
2014 25' Flying Cloud
Cuddebackville , New York
Join Date: May 2007
Posts: 2,735
Images: 21
Quote:
Originally Posted by TG Twinkie View Post
I did not know hard drives had needles. Learn something new every day.
Only the older vinyl ones And you had to turn them over to get the data on the B side.
__________________
2014 25' Flying Cloud Rear Twin
2012 Dodge Durango Hemi/AWD
Wayne&Sam is offline   Reply With Quote
Old 06-05-2016, 10:03 AM   #12
TahoeStream'n
 
subfan1's Avatar
 
2012 20' Flying Cloud
La Habra , California
Join Date: Jul 2007
Posts: 770
Images: 3
I ordered and replaced our unit last July 2015 and is working fine. I hope it is compatible with our Lifeline batteries I am now using. I think I remember asking that question before I bought it.
I wonder what the timeline is on the units that are suspected to be bad?
__________________
subfan1 is offline   Reply With Quote
Old 06-08-2016, 12:46 AM   #13
2 Rivet Member
 
waldosgone's Avatar
 
2015 20' Flying Cloud
Eagle River , Alaska
Join Date: Mar 2016
Posts: 49
I dropped in the replacement as provided by PD and the sound is still present; I only changed the power center but didn't replace the fuse board. The fuse board seems to be functioning as advertised (lights/voltage change based on the status of the battery.)

I'm wondering if PD is still running through their bad batch of power centers. With this neither fan is running (confirmed via visual inspection and using the "push" technique described above).

"Coincidence is not causality" Our stock group 24s boiled over the other day and after a conversation with the PD service department there is no way to tell if the bad transformer (what they assessed the problem was) was the cause of the issue. So I upgraded to the 6v in series for more power and new Costco (Interstate branded) batteries.

I wonder if I'm just being unreasonable as to how quiet I feel this should be? I know what a computer fan should sound like but this exceeds that.

We're going to press North to Alaska and I'll reengage with the PD folks when we get there.
__________________
waldosgone is offline   Reply With Quote
Old 06-08-2016, 01:19 AM   #14
2 Rivet Member
 
waldosgone's Avatar
 
2015 20' Flying Cloud
Eagle River , Alaska
Join Date: Mar 2016
Posts: 49
Quote:
Originally Posted by tevake View Post
Yes progressive Dynamics has had a bad batch of those units. I went thru two units that made too much noise right out of the box. Before finally getting one that ran quietly.
They were very responsive to the issue. And finally did a bench on the one that did work correctly, before they sent it out.

Sure was a struggle, but now I can change it out in record time after all the practice.

Cheers Richard
Is yours silent or does it make some noise?
__________________

__________________
waldosgone is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Progressive Dynamics PD4655 Converter/Charger thinairflyer Airstream Classifieds 0 04-23-2016 06:42 PM
Progressive Dynamics 4045 Converter soldiermedic Batteries, Univolts, Converters & Inverters 18 07-15-2011 07:10 AM
Progressive Dynamics Inteli-Power 4060 Power Center 68 Overlander Commercial Listings 0 01-22-2011 12:24 AM
Bad PROGRESSIVE DYNAMICS INTELI POWER 45A mountainman1 Batteries, Univolts, Converters & Inverters 5 09-08-2010 06:54 AM
New Progressive Dynamics convertor, AGM battery, and Pendant questions wacnstac Batteries, Univolts, Converters & Inverters 16 05-09-2007 10:12 PM


Virginia Campgrounds

Reviews provided by



Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:34 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.