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FHA - Testing Furnaces

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Joined
Mar 19, 2002
Professional Status
Certified General Appraiser
State
Illinois
Hello,

I was wondering if anyone has expertise here. I tested a furnace which would not reach desired temp. Owner and realtor say unit tested fine 1 day prior which I tend to believe.

The temp the day I was out was about 90 degrees, could this have affected my test? Thermostat said 78 inside, I set to heat setting, then cranked to 88, to no avail. Owner thinks outside temp could have affected this, so I promised I would ask around to see.

2nd question. Do we need to wait any period of time between turning on the heat, and then the air? I wondered if I somehow tested them too close together and caused a problem.

3rd question. I have heard there is a minimum temp at which a central air unit should be tested. One home inspector told be it was 68 degrees. Anyone hear differently?


Thanks for any responses!
 
Joined
Jan 13, 2002
Professional Status
Retired Appraiser
State
Florida
The air conditioning appeared to be functioning. As it is not safe for the HVAC system to be turned on to heat during the summer months, it was not turned on. If further inspection of the HVAC system is wanted, it must be done by a licensed HVAC contractor.

This statement changes with the seasons and is about to get stronger in language. I'm NOT an HVAC contractor or specialist!!!!

Yes, you can damage an HVAC system by switching back and forth from heat to air too fast... or if the exterior weather is too cold to turn on the a/c or too hot to turn on the heat. Let an HVAC contractor take that risk. Even home inspectors that pay attention to their classes and their E&O carriers don't do this. A friend that is a home inspector told me this, I checked it out and read up on it, and that is exactly how I learned not to do this. Learning never stops. I don't do the temp tests as I consider that part of a home inspectors or HVAC specialists job.

Now, regarding your particular situation, I would state that the test you did was not conclusive and call for an inspection by a licensed HVAC contractor. Then stop doing those tests and make your liability smaller - call for a specialist if they want to know more about the HVAC system.
 

Restrain

Elite Member
Joined
Jan 22, 2002
Professional Status
Certified General Appraiser
State
Florida
In mid-summer it's often over 100 degrees. You can damage the AC system and often the furnace is not set to be turned on in mid-summer. Flag it and go on.
 

BR549

Sophomore Member
Joined
Aug 6, 2002
Professional Status
Licensed Appraiser
State
Texas
Pam, wuold you please elaborate?? I thought we could not insist on the home inspection, and we are required to check the mechanical systems?? THanks in advance
 

Mike Garrett RAA

Elite Member
Gold Supporting Member
Joined
Jan 14, 2002
Professional Status
Certified Residential Appraiser
State
Colorado
Shucky darn......now we are HVAC specialists. Do you carry thermometers with you? Could be the thermometer on the HVAC controls is a little off.

HUD is creating a village of idiots and we are the idiots! Our job is to appraise....not be home inspectors. I turn on the furnace and if warm air comes out I am satisfied. I turn on the A/C (summer months only, never in the winter) and if cool air comes out...I am satisfied.

This madness needs to stop! Think of the liability...you say it cools to 68 degrees and the owner finds out it only cooled to 69 degrees...guess who will be buying a new A/C unit.
 

Ben Vukicevich SRA

Senior Member
Joined
Feb 9, 2002
Professional Status
Certified General Appraiser
State
New Jersey
Joe,

Use the New VC Sheets (7/2003) which are effective now and you'll see that the VC's for desired heating and cooling temperatures are now history...and thus your problem of testing to a desired temperature.


Ben
 
Joined
Mar 19, 2002
Professional Status
Certified General Appraiser
State
Illinois
Everyone,

Thank you so much for your responses!

Gratefully,


Joe
 

JSmith43

Elite Member
Joined
May 5, 2003
Professional Status
Certified General Appraiser
State
California
Joe,

The trick is to ice down the thermostat, if it is too hot for the furnace to kick in. I like Ben's solution the best. Use the new form!
 
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