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About john t. borgman
Expertise
I work days, so I can only answer early in the day or later in the evening, I live in Oregon. I have been so good at all the other area's of hvac, I am probably the only hvac guy that does not know oil. ( lol ) I am very well versed in gas, electric and heat pumps and will only answer residential applications. I have been known the past decade or so, by my employers as the guy you send when no one can figure it out. Trouble shooting is my special. I understand the physics behind air flow, refrigerants and electricity. I understand programmable t-stats, zone controls, economizers, fossil fuel kits and the engineering thought process in the wiring and construction of residential equipment

Experience
I was lucky enough to start in this field over 25 years ago as an installer, for a company that installed the best duct systems I have ever seen, even to this day. The best ,as far as understanding the way air really flows through a duct system, from the return air to the very last supply register . They also had great pride and the duct work was put in, not only to last 50 years, but to look exceptional. Then as I started doing service work, I was again fortunate that I found a 3 year engineering class being put on be a man that was the educational director for the Entire united states for a society called " the Refrigeration Service Engineering Society " And for the next 3 years I schooled at night and practiced what I learned during the day, a great advantage over schooling and then trying to remember it years later.. Versed in duct design manual J heat gain/loss calculations. Also experience in wine rooms and indoor swimming pool hvac & humidity controls

Publications
I have 2 inventions that have gone through the process and been recorded at the National Institute of Standards and Technology from start to finish and thus been invited to national innovation workshops by the dept. of Commerce and the dept. of Energy. They are waste heat recovery devices that N.I.S.T approved as valid and am currently looking for marketing partners to get this product into the hands of consumers and make a BIG difference in Energy savings for every Household and Eatery and take a big bite in the the peak hours power consumption that face our Utilities companies.

Education/Credentials
factory training in Lennox ,Rheem, Ruud ,Trane, Tempstar ,Carrier, Day&Night, Payne, Bryant, Coleman, Intertherm, Ultra boilers, Unico, Mitsubishi,Sanyo, Taylor, Nicewonger, . Associates degree in Refrigeration Engineering. Certified with Energy Department, Check-me Program, have N.A.T.E. certifications in gas, a/c & heat pump. Teach and apprentice at every company I work at.

 
   

You are here:  Experts > Home/Garden > Home Appliances > Heating, Air Conditioning, Fridge, HVAC > HVAC works, inside fan motor will not come on

Heating, Air Conditioning, Fridge, HVAC - HVAC works, inside fan motor will not come on


Expert: john t. borgman - 7/13/2009

Question
I recently went into the furnace, pulled the covers and changed the filter only. Put the covers back on and now the motor will not come back on to blow air through the house. The AC unit outside comes on, blows air into the furnace area, but that is it. I checked the circuit breakers outside and they are on, the cover is pushing the kill switch back into position. I even tried holding the switch manually to make sure and that does nothing either. Just seems odd that only change was the filter and everything stops. Any advice would be helpful, Thank you!

Answer
Steve,
 The outdoor unit does not blow air inside, it moves refrigerant inside.  The motor below the filters you changed is called the blower.  Is it not coming on?  If so you might have knocked off a wire or something.  The kill switch is working otherwise you would not have the outdoor unit coming on as it gets its control voltage from the furnace , which gets it from the high voltage past the kill switch.

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