Go Back   InterNACHI Inspection Forum > Specific Inspection Topics > Ancillary Inspection Services & Additional Topics

Notices

Ancillary Inspection Services & Additional Topics Contains discussions about Radon, Wood Infestation, Water Quality, Well, Septic, Lead, Asbestos, Pool, and Mold inspections.

Reply
 
LinkBack Thread Tools
  #1  
Old 5/2/10, 9:58 PM
Kenneth Blair Kenneth Blair is offline
InterNACHI Member
 
Join Date: Mar 2006
Location: Jacksons Gap, AL
Posts: 80
Default Bad Odor

From an inspection I did approx 2 years ago the client is getting what he describes as a dead fish odor coming from the master bathroom and bedroom when the air handler is running. The contractor was concerned about chinese drywall and we tested a sample but negative and no corrosion was noted either. The odor has been getting worse with the temperature rising and the client's son has asthma which is getting worse. I have not detected the odor but the contractor describes it as wet insulation odor but we can't find any moisture or wet insulation. Any ideas.
Reply With Quote
Need a home inspection in Mississippi? Check out InterNACHI's listing of Mississippi certified home inspectors. Or, find a home inspector anywhere in the world with our inspection search engine.
  #2  
Old 5/2/10, 10:06 PM
James H. Bushart's Avatar
James H. Bushart James H. Bushart is offline
InterNACHI Member
 
Join Date: Dec 2004
Location: Missouri
Posts: 24,975
Default Re: Bad Odor

3,435 jokes have just run through my mind....the least crude of which being a blind man walking past an open Fish Market, tipping his hat and saying "Good morning, ladies".....
Reply With Quote
  #3  
Old 5/2/10, 10:09 PM
Scott Gilligan,  CMI's Avatar
Scott Gilligan, CMI Scott Gilligan,  CMI is offline
InterNACHI Member
 
Join Date: May 2007
Location: Philadelphia, PA
Posts: 1,826
Send a message via AIM to sgilligan1 Send a message via MSN to sgilligan1 Send a message via Yahoo to sgilligan1
Default Re: Bad Odor

Contact an environmental specialist or industrial hygienist. Running a TO-15 test for VOC's will likely pinpoint the odor it's source.
Reply With Quote
  #4  
Old 5/3/10, 1:27 PM
Bob Turner's Avatar
Bob Turner Bob Turner is offline
New User
 
Join Date: Sep 2004
Location: Talbott, TN
Posts: 12
Please Note: rturner is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: Bad Odor

Quote:
Originally Posted by kblair1 View Post
From an inspection I did approx 2 years ago the client is getting what he describes as a dead fish odor coming from the master bathroom and bedroom when the air handler is running. The contractor was concerned about chinese drywall and we tested a sample but negative and no corrosion was noted either. The odor has been getting worse with the temperature rising and the client's son has asthma which is getting worse. I have not detected the odor but the contractor describes it as wet insulation odor but we can't find any moisture or wet insulation. Any ideas.

Kenneth,

Are there any plumbing vents improperly terminating in the attic above these areas or near the air handler?

Are there any air admittance valves located inside the bathroom?

Does the A/C unit's condensate line improperly connect to a plumbing vent?

Maybe a mouse or squirrel got into the air handler, any signs of pest intrusion?

Robert
Reply With Quote
  #5  
Old 5/3/10, 2:43 PM
Wayne B. Wilson's Avatar
Wayne B. Wilson Wayne B. Wilson is online now
InterNACHI Member
 
Join Date: Aug 2008
Location: Powell, Tn
Posts: 12,319
Default Re: Bad Odor

Check for build up in the drain pan of the evaportor Inside the air handler, or if there is a humidifer .



Wayne Wilson
East TN Home Inspections LLC
Knoxville, Oak Ridge, Maryville, Clinton, Farragut, Lenoir City, Pigeon Forge, Sevierville and all the surrounding areas.
865-256-1490

http://site.myhomeinspection.net

Reply With Quote
  #6  
Old 5/3/10, 5:12 PM
James E. Braun, CMI's Avatar
James E. Braun, CMI James E. Braun, CMI is offline
InterNACHI Member
 
Join Date: Jan 2005
Location: Jefferson City, MO
Posts: 8,601
Default Re: Bad Odor

Where ever there is moisture there will be odors. You my need a thermographers help.
Reply With Quote
  #7  
Old 5/3/10, 6:42 PM
Scott Gilligan,  CMI's Avatar
Scott Gilligan, CMI Scott Gilligan,  CMI is offline
InterNACHI Member
 
Join Date: May 2007
Location: Philadelphia, PA
Posts: 1,826
Send a message via AIM to sgilligan1 Send a message via MSN to sgilligan1 Send a message via Yahoo to sgilligan1
Default Re: Bad Odor

Foul odors can come form any number of things in an HVAC system. Could be anything from a dead mouse, microbial growth, chemical offgassing, or poor venting. You could spend hours looking for the cause without any results. I ususally would recommend doing some sort of testing to help narrow down what you should be looking for on an inspection. Testing will tell you if you should be looking for something decaying in a duct, sewer gases being drawn into the system from a poorly placed vent, mold or bacteria growth, or adhesives that may be giving off fumes. It could also be a combination of different problems causing a strong smell. It can be a pretty expensive endevour to hunt down a decaying mouse in duct work if it is not readily visible. Don't needlessy waist your client's money and your time trying to figure it out by poke and hope inspection methodology. Teting will also verify that a substancial effort was made to identify the source and can also be done once the problem is found to verify the problem has been solved.

Think of it this way, your doctor wouldn't give you certain kinds of medication without knowing what is going on in your bloodwork first and then monitoring it to make sure it is doing it's job. Anytime there is an IAQ complaint, you have to treat it as if someone's health depends on the outcome...because it does. If you are going to take those kinds of inspections, follow what is considered to be acceptable industry standards to document and diagnose the issue. Verify the problem has been solved afterwards and recommend they seek the care of a medical professional since there is obviously an effect on someone's health in this issue.
Reply With Quote
  #8  
Old 5/3/10, 9:53 PM
James E. Braun, CMI's Avatar
James E. Braun, CMI James E. Braun, CMI is offline
InterNACHI Member
 
Join Date: Jan 2005
Location: Jefferson City, MO
Posts: 8,601
Default Re: Bad Odor

FYI: Mold testing can detect dead animals such as rats in most cases. There are certain molds that grow on a decaying carcasses.
Reply With Quote
Reply

Thread Tools

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pungent odor??? apeden General Inspection Discussion 8 7/3/09 8:35 AM
Odor mtimpani Plumbing Inspections 3 4/20/09 2:46 PM
offensive odor mbyrd Interior Inspections 20 11/8/07 10:35 PM
Chemical type offensive odor lfoster Interior Inspections 9 11/6/07 12:15 PM

All times are GMT -4. The time now is 9:35 AM.
no new posts