| Subject | Date Asked | Expert |
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| Roof top AC | 7/4/2009 | Howard Livingston |
Q: I have a 1976 Coleman rooftop AC unit on my Motorhome, It runs OK, not the coldest, but after a ...
A: sually there is not a service valve on those things. But you can buy a clamp made for the diameter ...
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| Return Air Drop extension for new RA vent | 7/4/2009 | Jim Barnhart |
Q: I am extending the return air drop under my furnace so I can add a second return air vent. I see ...
A: Gary, There is an International Building Code, IBC that covers the United States of America ...
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| Starter kits | 7/4/2009 | john t. borgman |
Q: My service tech told me the capacitor for my unit is $259.00, I found it on line for $88.00 bucks. ...
A: Warren, First you must understand that a business must make money on labor and parts mark up that ...
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| Roof top AC | 7/4/2009 | Howard Livingston |
Q: I have a 1976 Coleman rooftop AC unit on my Motorhome, It runs OK, not the coldest, but after a ...
A: 33 years old !!!! They made good stuff then. Not anymore. Fan motors is the favorite thing to ...
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| heat pump cool not cold air | 7/4/2009 | Jim Barnhart |
Q: I have a 2 year old unit 3 ton, that all of a sudden with in the last day has stopped blowing cold ...
A: Mike, You can buy R22 for about $6 a pound, 410A for about $8 a pound. Is this something you think ...
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| Air Conditioner | 7/4/2009 | Craig HVAC Expert |
Q: My central air conditioner is less than 2 years old. I turned it on for the first time this year on ...
A: Insulating the pipe is not going to change the fact the unit is running so poorly. The lack of a ...
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| air handler drain line | 7/4/2009 | Norval Trimborn |
Q: Does the drain fittings need to be glued together and can they just hook together dry? I know it ...
A: The drain fittings should be glued, but I usually leave the upstream side of one of the horizontal ...
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| GE GSS25LGMA WW Cooling Problem | 7/4/2009 | Eric Campion |
Q: I have a GE GSS25LGMA WW refrigerator that stopped freezing when the weather got hot and now the ...
A: Open the freezer door and then move food to see the entire rear inside panel. Do you see any frost ...
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| york diamond 80 | 7/4/2009 | Bill Brainard |
Q: water is coming out of the drain tube. is it possible there is a stopped up line?
A: I assume you are running the A/C unit. A/C coils make water & it normally drains. Yes, the tube may ...
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| Return Air Drop extension for new RA vent | 7/4/2009 | Jim Barnhart |
Q: I am extending the return air drop under my furnace so I can add a second return air vent. I see ...
A: Gary, You can cover the top with 1/2" plywood. My main concern is that the box/platform is sealed ...
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| clearances, codes or specs | 7/4/2009 | Bill Brainard |
Q: my question is rather simple. I live in Canada and my question is related to my wood burning ...
A: I am in Montana & do not know your codes. But I have delt with insurance companies a lot. Here is ...
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| A/C blower catching fire | 7/4/2009 | Craig HVAC Expert |
Q: I had an ac man come out and change my capacitor on Wed. He recommended a cleaning and also told me ...
A: There was a sign the motor may have been going bad already...a bad run cap. It is completely ...
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| vacuum pumps | 7/4/2009 | Craig HVAC Expert |
Q: i'm confussed on using vacuum pumps. wondering if you could help. does all the refrigerent have to ...
A: The service ports on the service valves are opened to the line set. Get the vac on the line set, ...
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| Furnace Hums | 7/3/2009 | john t. borgman |
Q: 1984 ICG Gas Furnace. Occasionaly thermostat calls for heat, burner comes on but when motor should ...
A: Ray, First thing would be to check the amp draw of the motor, it should be about 70 to 80 % of the ...
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| Overheating condenser fan motor | 7/3/2009 | Craig HVAC Expert |
Q: Craig, here's the scenario. I have a 32 year old central air unit. Last year the bearings in the fan ...
A: The heat coming out of the cond unit could cause the motor to overheat. If the fan is not spinning ...
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| Refrigirator GE BSS25JSRF SS | 7/3/2009 | Eric Campion |
Q: The ice dispenser quit working along with the upper light in the refrigerator side. I changed the ...
A: Almost sounds as if you lost netural on that circuit. Much like a home circuit panel. Check for ...
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| heat pump cool not cold air | 7/3/2009 | Jim Barnhart |
Q: I have a 2 year old unit 3 ton, that all of a sudden with in the last day has stopped blowing cold ...
A: Mike, I don't know your unit?, what they'll do for warranty?, Regardless It really doesn't matter ...
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| rheem heat pump, outdoor fan and compressor not start | 7/3/2009 | john t. borgman |
Q: I have a Rheem heat pump. model no is RMPC-024JAZ. when call for heat or cooling, the compressor ...
A: Yves, It sounds like you either have a bad run capacitor or you have a power problem. Next to the ...
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| Motor burning up | 7/3/2009 | Bill Brainard |
Q: We have a split system unit.We had problems with the blower motor not starting up properly.We had to ...
A: Fluke! or it is possible the maintaince guy hooked it up wrong. But probably not. New motors have a ...
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| Turning off upstains AC | 7/3/2009 | Norval Trimborn |
Q: We have a two story home and are now empty nesters. We live in the downstairs and the upstairs is ...
A: If you have high humidity in your area and you run only 1 of 2 units you may have trouble keeping ...
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| Heat Pump Air Handler | 7/3/2009 | john t. borgman |
Q: I live in the Phoenix Az area where most homes have a Heat Pump. Original Owner of my home for over ...
A: Sorry...furnace means you have either a gas back up or electric, both are called a furnace, the term ...
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| Air Handler Motor Burning Up | 7/3/2009 | Eric Campion |
Q: We have a split system unit.We had problems with the blower motor not starting up properly.We had to ...
A: Unfortunately our expertise is with Major Home Appliances only. This would include washers, dryers, ...
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| Goodman a/c | 7/3/2009 | Tim McAuley |
Q: My a/c wouldn't stop running so my wife turned it off at the thermostat. It wouldn't run two days ...
A: Tracy - the start assist could be bad so replacing it might solve your problem. However, it is ...
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| Goodman GMP07-3 | 7/3/2009 | Howard Livingston |
Q: my Goodman unit's inside fan is running constantly. The outside unit will not turn at all, no fan, ...
A: Manually press in the contactor in the outside unit & see if it runs. Test the freon to see if has ...
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| Heat Pump Air Handler | 7/3/2009 | john t. borgman |
Q: I live in the Phoenix Az area where most homes have a Heat Pump. Original Owner of my home for over ...
A: Marty, That's a good one and I can tell you right now it will take some one there with eyes on and ...
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| compressor not turning on | 7/3/2009 | Craig HVAC Expert |
Q: I have a carrier unit with the unit in the attic and the compressor outside. When I turn on the ac ...
A: Using a meter, the power needs to be checked at the cond. unit to see that the compressor contactor ...
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| Temperature of air out a supply vent | 7/2/2009 | john t. borgman |
Q: What is the temperature at a supply vent for a home a/c? Mine is 58-59 degrees. The temperature at ...
A: No, 20 degrees is the rule of thumb, you might have a dirty filter or a few ounces low on charge, I ...
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| Return Air Drop extension for new RA vent | 7/2/2009 | Jim Barnhart |
Q: I am extending the return air drop under my furnace so I can add a second return air vent. I see ...
A: Gary, I don't know what your set-up is? Why is your "furnace" sitting up on a constructed "box" The ...
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| central a/c unit dead | 7/2/2009 | Eric Campion |
Q: my wife accidentally pulled loose the 2 wire thermostat wire going to the central air unit (Trane XE ...
A: Unfortunately our expertise is with Major Home Appliances only. This would include washers, dryers, ...
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| Wrong run capacitor installed? | 7/2/2009 | Norval Trimborn |
Q: Due to a lack a parts at the time, I replaced a residential dual run capacitor rated 60/3 370 volts ...
A: Yes you should replace the 5mfd with a 3 mfd. The voltage rating is ok since you can always replace ...
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| GE Fridge GBS22HCPAWW - No defrost | 7/2/2009 | Eric Campion |
Q: I have exact same problem as someone who asked the question on 5/8/2007. I have to defrost using ...
A: NOt sure how far you can go but here is the service manual. Depending on the speed of your service ...
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| Ruud A/C Blower Problem | 7/2/2009 | Jim Barnhart |
Q: Mr. Barnhart, I have a Ruud A/C Heat pump with gas backup installed in the attic of my home in ...
A: Terry, Your blower is controlled by a blower relay in your air handler/furnace, the thermostat ...
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| air conditioning | 7/2/2009 | Tim McAuley |
Q: 1- I received a complete 3 Ton A/c system,but I found that the coil{evaporator) has 2ton rating ...
A: Sam - The TXV bulb should be securely mounted to the tubing at the evaporator outlet. If it is loose ...
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| 24V wiring on RHEEM heat pump | 7/2/2009 | Eric Campion |
Q: I an wiring a Rheem RPKA-036JAZ heat pump to a hunter 44760 tstat, to my existing york gas furnace. ...
A: Unfortunately our expertise is with Major Home Appliances only. This would include washers, dryers, ...
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| trane ac/heat pump | 7/2/2009 | Tim McAuley |
Q: I have a trane ac system with a heat pump.My question is when i have the ac turned off at the ...
A: Ken - I suspect that you have the type of thermostat that can be set to bring on the indoor fan for ...
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| Honeywell EMM-3 controller on Carrier split system | 7/2/2009 | Craig HVAC Expert |
Q: Its 105 in Texas and my AC is still acting up after two service calls, please advise? Symptom is ...
A: According to the info in the link you sent me, if both zones are green and no system that means the ...
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| stumped | 7/2/2009 | Jim Barnhart |
Q: i recently just replaced my outside condenser unit on my home with a ducane 2 ton unit the unit had ...
A: Jason, I don't know anything about your system except "ducane 2 ton unit"? Sounds to me like you ...
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| Air Conditioner | 7/2/2009 | Tim McAuley |
Q: I have a 2500+sq ft home. I have a 2.5 ton AC unit. It runs all the time. I was told I need a ...
A: Emily - How many sq feet per ton depends on the climate conditions where you live. In So. ...
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| stumped | 7/2/2009 | Eric Campion |
Q: i recently just replaced my outside condenser unit on my home with a ducane 2 ton unit the unit had ...
A: Unfortunately our expertise is with Major Home Appliances only. This would include washers, dryers, ...
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| Carrier A/C issues | 7/2/2009 | 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: No Jeff, the blower wheel is way heavier and has more static pressure than the fan blade. Did you ...
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