| Subject | Date Asked | Expert |
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| Outside component of HVAC does not turn off | 7/2/2009 | Jim Barnhart |
Q: We have 3 systems in our house. One of the outside units (the condenser?) runs even when the ...
A: Carol, The outside unit has 220/240 volts of electricity going to its contactor all the time, (the ...
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| wiring a 15KW Goodman Heater | 7/2/2009 | Craig HVAC Expert |
Q: I am having a Goodman 15KW heater installed in my home and I am running the wire. I am going to use ...
A: Local codes can vary, but generally speaking, the means to turn off the unit should be within line ...
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| Plenum? | 7/2/2009 | Craig HVAC Expert |
Q: I am building a 10'X 48 addition to my free standing metal building on 2' high blocks. Can I build a ...
A: If the plenium is not going to support any weight, a good way to take care this is to take the ...
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| Freon | 7/2/2009 | Norval Trimborn |
Q: I'm a new homeowner and would normally ask my Dad these questions, but he passed away suddenly in ...
A: If it was very low on freon then there is a leak in the system. You need to have the system leak ...
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| Return vents | 7/2/2009 | Jim Barnhart |
Q: I have a reverse split level about 2100 square feet. Just put in a new ac and furnace. If I put ...
A: Cory, I looked into my "crystal ball" but I couldn't find anything that show's how your furnace and ...
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| Carrier Model FB4ANF042 Split Heating and Air Unit | 7/2/2009 | Bill Brainard |
Q: When I set the thermostat to cool, the fan comes on and air is blowing through the vents. The air ...
A: The outside unit should have 2 fuses. One in the breaker box and one outside next to the unit ...
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| AC Coil replacement | 7/1/2009 | john t. borgman |
Q: The AC 1st main drain line goes to the main master bath under the sink. The 2nd drain now ...
A: The first drain is the rusted drain pan and the color that the water is tells that they are correct. ...
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| 2nd Opinion | 7/1/2009 | john t. borgman |
Q: Greetings from another Expert at allexperts.com (I'm in the Excel and Geocaching categories)! My ...
A: Two sizes copper pipe, it gives with the gauge pressure what we call superheat and sub cooling, ...
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| Choosing a High Seer Central Air Conditioner | 7/1/2009 | john t. borgman |
Q: John, I live in LA. Have had a contractor determine that i need a 5 ton unit. I know want to ...
A: Marlon, Carrier, bryant, day&night, payne are all the same unit and all of their 410a equipment is ...
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| 2nd Opinion | 7/1/2009 | john t. borgman |
Q: Greetings from another Expert at allexperts.com (I'm in the Excel and Geocaching categories)! My ...
A: Nathen, Something does not add up. If you have a 5 ton fan and duct system the evaporator coil ...
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| air conditioner | 7/1/2009 | john t. borgman |
Q: my breezair evaporater,the motor heats up after working for two hours only why.the other ...
A: Mulowoka, All motors heat up, but should never heat to 30degrees c temperature rise above the ...
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| Ductless A/C | 7/1/2009 | john t. borgman |
Q: John, am in the process of planning our retirement home to be built in the Texas hill country. Am ...
A: Ron, How well they work will depend on windows , insulation ect. If you do have a cold spell I ...
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| Carrier A/C issues | 7/1/2009 | john t. borgman |
Q: I have a 3.5 ton carrier a/c unit that was installed three years ago. My house was built three ...
A: Jeff, Yes you have some issues, either the unit is not sized correctly and or your duct system is ...
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| HVAC Handler in attic | 7/1/2009 | Norval Trimborn |
Q: Sir I am in the process of buying a townhome in Freeport FL and had the home inspected. The ...
A: The air handler in the attic should have a secondary drain pan under the unit with a float or wet ...
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| Goodman HVAC OUtdoor Compressor | 7/1/2009 | Jim Barnhart |
Q: Why does my outdoor 5 ton Goodman HVAC compressor not come on until I hose down the condensate coils ...
A: Bradley, The fan running cools the condensing coil, or at least that's it's purpose, Your condenser ...
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| tapping into air ducts | 7/1/2009 | Howard Livingston |
Q: I finished our basement a few years ago and did not think we needed to tap into the ducts for air. ...
A: you can do it. Whatever size duct you tap into you would need a Y fitting with a 45 deg side outlet ...
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| thermostat control | 7/1/2009 | Tim McAuley |
Q: Tim, I have an OLD Dico thermostat control (air conditioner only) in my home. The settings on the ...
A: Terri - The way you describe the switches, I believe the left is used to set the temperature you ...
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| Lennox G60UHV (X) Series AC/Heat | 7/1/2009 | Craig HVAC Expert |
Q: Craig, I had this unit installed 6 years ago. When I started the A/C unit this season, it would run, ...
A: If the transformer was bad, as you might think, nothing would work. I do not see transformers that ...
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| evap coil | 7/1/2009 | Norval Trimborn |
Q: I have a Rheem Model RCBA-2459GG14 cased evap coil, 1994 installed. Indoor unit is vertical, ...
A: This should not be a capillary tube coil because of the install date. The distributor tubes are ...
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| water in tray of air condition | 7/1/2009 | Tim McAuley |
Q: My air conditioner would not come on and then I found water in the tray below the central unit. The ...
A: Dwayne - The condensate water in the tray came from the normal operation of the a/c system. As air ...
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| HVAC PAYNE - no AC no Fan | 7/1/2009 | Bill Brainard |
Q: I have a roof-mounted gas fired combo AC and Furnace and live in southern California. My AC unit ...
A: Did you confirm that there is 220 volts at the unit? Check the breaker box and the fuses up at the ...
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| question about an external HVAC air handler | 7/1/2009 | Jim Barnhart |
Q: We have a neighbor who has an external HVAC air handler which is loud enough to keep us awake at ...
A: Steve, I think your talking a condensing unit? Fifty foot is pretty much the limit with what the ...
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| EVAPORATOR PAN | 7/1/2009 | Craig HVAC Expert |
Q: I HAVE A 4 TON BENCHMARK EVAPORATOR WITH A RUSTED PAN . I BOUGH A RHEEM WELL I THOUGHT BUT THE ...
A: Clearly not all contractors are out to screw the public. I make a good living without having to rip ...
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| A/C blower wheel | 7/1/2009 | Bill Brainard |
Q: I have a central a/c unit and the blower wheel is cracked. I want to replace it and wondered if you ...
A: Wonder what kind of unit you have?? age, SEER, etc??? Anyhow, it is easy. TURN "OFF" THE JUICE! ...
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| inside coil freezing over | 7/1/2009 | Jim Barnhart |
Q: it vibrates, misses my condensate pan and leaks on the basement floor. How do I seal the metal ...
A: Michael, I think all of your problems are caused from the inside coil freezing over. The water ...
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| Plenum? | 7/1/2009 | Craig HVAC Expert |
Q: I am building a 10'X 48 addition to my free standing metal building on 2' high blocks. Can I build a ...
A: Both drywall and plywood will absorb moisture, which can cause mold to grow. Although I would ...
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| Lennox G60UHV (X) Series AC/Heat | 7/1/2009 | Craig HVAC Expert |
Q: Craig, I had this unit installed 6 years ago. When I started the A/C unit this season, it would run, ...
A: I need you to clear up some info for me. The model number you have listed is for a furnace. Which ...
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| Bryant Air handler | 7/1/2009 | Jim Barnhart |
Q: My air conditioner stopped blowing cold air. I had a technician out and he said because the air ...
A: C, Coils don't rust, a coil is a copper pipe coil with aluminum fins. Cooling coils condensate, when ...
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| AC condenser | 7/1/2009 | Jim Barnhart |
Q: Air conditioner is not producing cold air, fan has stopped altogether in the unit outside. Had a ...
A: Toby, If you lived where I do I could tell you where to get a replacement capacitor, I don't know ...
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| Carrrier Furnace 58XTS070 placement | 7/1/2009 | Howard Livingston |
Q: We got this Carrrier Furnace 58XTS070 last year when it was installed in downflow format. We are ...
A: I presume the furnace is electric heat ?? The coil drain pan & drain lines is the problem. I don't ...
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| RHEEMS Compressor failed | 7/1/2009 | Norval Trimborn |
Q: Lodi, California (it was 110F on Sunday so I am motivated) The house I purchased in 1990 has a ...
A: Yes you can just replace the compressor. Yes a new system will cost more than just replacing the ...
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| Condenser in furnace froze and now.. | 7/1/2009 | john t. borgman |
Q: I replaced the filter in my furnace about a week ago. I usually keep the AC in the house around ...
A: Gary, that is why it is frozen in your evaporator, the fan isn't running. It will use the black ...
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| Trane Air Conditioner | 6/30/2009 | Jim Barnhart |
Q: The electricity in my neighborhood went out on Saturday. We had to leave for several hours. When ...
A: jewelene, I don't know what all with your "Trane heatpump air conditioner" is not working", If it's ...
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| Odor from AC | 6/30/2009 | Tim McAuley |
Q: I have a Carrier system that's been regularly maintained. The air handler is in our garage. It has ...
A: Phil - The only thing I can suggest is a thorough examination of all the ductwork from/to the ...
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| Frost-free freezer has frozen water droplets and making loud buzzing noise | 6/30/2009 | Eric Campion |
Q: I'm leasing a home that has a GE Profile Arctica fridge/top freezer (and the home is a friend's so I ...
A: So...at this point, is your unit cooling? Aside from the buzzing, I am not sure what your problem ...
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| Air handling unit | 6/30/2009 | Jim Barnhart |
Q: Sir, I have a trane air handling unit in my basement. I came home from a weekend away on Sunday ...
A: David, The drain line connection at the unit should be a 3/4" female threaded pipe connection, from ...
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| Siegler fuel oil heater | 6/30/2009 | Eric Campion |
Q: I have lots of numbers from the different parts but before I send you all of that, can you help me ...
A: Unfortunately our expertise is with Major Home Appliances only. This would include washers, dryers, ...
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| Mis Match AC Unit | 6/30/2009 | Tim McAuley |
Q: When we buy the house we got the out door unit is a 2 ton Goodman AC unit and the indoor was a 5ton ...
A: Mr/Ms Sol, I don't know where you live so it's difficult to know what size unit you need for your ...
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| Air Conditioning | 6/30/2009 | Tim McAuley |
Q: Big debate here at work (in Tx where it has been over 100 degrees)and we are in a metal building. ...
A: Both & neither. This debate goes on often enough. It is true that a unit that only needs to maintain ...
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| Water Source Heat Pump | 6/30/2009 | john t. borgman |
Q: To qualify my position I have a background in A/C & Refrig. but have been out of that business for ...
A: John, First thing you do is reverse the flow in heat mode and that will eliminate the metering ...
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