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  1. Answers
    5
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    1,791

    Every home is different, but the attic is usually...

    Every home is different, but the attic is usually a good place for it because it takes no space away from either a garage or closet, first let me say that I hang all furnaces and air handlers from...
  2. Answers
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    1,939

    Check your breaker for the outside unit.

    Check your breaker for the outside unit.
  3. Probably a short between the green wire and...

    Probably a short between the green wire and yellow wire from thermostat to furnace or someone jumpered the "G" to "Y" at the furnace.
  4. Answers
    29
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    1,280

    When a contractor installs a single pipe 90%...

    When a contractor installs a single pipe 90% furnace and uses conditioned air (air already heated by furnace ) he is compromising the efficiency of the furnace. This air that is used for combustion...
  5. Answers
    14
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    1,802

    Both codes indicate a limit switch or flame...

    Both codes indicate a limit switch or flame rollout switch, you may have a defective switch and checking with a meter may be necessary to determine the interruption in the control circuit, good luck,...
  6. Answers
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    1,280

    Its obious that the last poster has not read the...

    Its obious that the last poster has not read the manufacturers installation instructions, not all 90 percent furnaces can be installed utilizing only one pipe, the single pipe installation should...
  7. The pressure switch is a safety control and...

    The pressure switch is a safety control and should not be assumed to be bad , proper trouble shooting may prove a different problem exists ,good luck.
  8. Answers
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    1,280

    The two pipes need to have the same atmospheric...

    The two pipes need to have the same atmospheric pressure, utilizing combustion air from inside the house will not be the same pressure and termination is important in regards to vent pipe and...
  9. Question: Pneumatic termostat

    by acetc
    Answers
    2
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    443

    Pneumatic thermostats function in a number of...

    Pneumatic thermostats function in a number of different ways, one way is by sending air pressure to or relieving pressure from a pneumatic actuator or water valve to allow hot or cold water through a...
  10. Answers
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    695

    If it has a fuse it would be on the circuit board...

    If it has a fuse it would be on the circuit board in the air handler, looks like a automotive type. Also check your breaker, it will be on a separate breaker then the a/c. Good luck, Mike
  11. Answers
    3
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    1,064

    Letmetellu's advice is right on and I might add...

    Letmetellu's advice is right on and I might add that the Goodman furnace is notorious for getting the orifice on the induced draft blower housing plugged up , this has the small tube attached to it,...
  12. Answers
    3
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    1,291

    They make a retro fit kit for this type of job,...

    They make a retro fit kit for this type of job, comes with every thing necessary, costs vary and should be installed by a gualified service tech. Good luck, Mike
  13. Answers
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    1,271

    You absolutely should not be trying to use a...

    You absolutely should not be trying to use a ceramic or brick chimmy, the reason is that in order to vent properly the gases must stay hot in order to rise out of the chimmy since these gases are...
  14. Question: AC return vent size

    by acetc
    Answers
    4
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    2,750

    I might add to the above posts that in order to...

    I might add to the above posts that in order to move air one must also take into consideration the size of the supply ducts as well as the return, a sixteen inch duct only moving 575 cfm tells you...
  15. Question: Furnace noise

    by acetc
    Answers
    6
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    789

    Check to see if your system is iceing up, could...

    Check to see if your system is iceing up, could be driping through the furnace, look for ice or frost on the refrigerant lines when it is running. Good luck, Mike
  16. The "T" terminal on old thermostats was for a...

    The "T" terminal on old thermostats was for a thermister located in the outside unit on heat pumps. Just tape it off and don't use it, you don't need it.Good luck, Mike
  17. Answers
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    1,504

    Put the white wire on "w" if you don't have a "o",

    Put the white wire on "w" if you don't have a "o",
  18. Answers
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    3,091

    The drain line on the evaporator coil is normally...

    The drain line on the evaporator coil is normally tee'd into the heat exchanger drain of a 90 % furnace where as an increased static pressure can affect condenser drain, this may be the case if there...
  19. Question: Heating cuestion

    by acetc
    Answers
    5
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    352

    Sequencer is a clue, you must have an electric...

    Sequencer is a clue, you must have an electric furnace (air handler) it is possible to have a burnt out strip heat or in line fusible link (fuse) this would be in the heat strips. This type of...
  20. On all air conditioners there is a name plate and...

    On all air conditioners there is a name plate and on this plate will give fan motor amps and compressor amps (FLA) , it will also list maximun breaker or fuse size, this number is what you want to...
  21. Answers
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    3,091

    The gurgling in the condensate drain as well as...

    The gurgling in the condensate drain as well as having to pinch off the drain to get it to drain also indicates a dirty coil, the air will blow out the drain line due to the higher static from a...
  22. Answers
    13
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    3,091

    From your discription it sounds like you may...

    From your discription it sounds like you may have a dirty evaporator coil, this would cause the short cycling of the furnace and loss of air flow. This can be varified by removing the blower from...
  23. Answers
    5
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    1,583

    Most furnaces as stated by ballengerb1 do come as...

    Most furnaces as stated by ballengerb1 do come as natural gas and need to be converted to lp, so a conversion kit would be from lp to natural gas, you need to contact a Rheem dealer and order the...
  24. Question: Metering Device

    by acetc
    Answers
    3
    Views
    527

    A thermostatic expansion valve will not cause...

    A thermostatic expansion valve will not cause "equal pressures" if it fails, normally a txv will fail to the closed position due to the power head failing. Check to be sure you are putting your...
  25. Answers
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    2,639

    May be a dirty pilot (internally) would need to...

    May be a dirty pilot (internally) would need to disassemble to clean.
  26. Answers
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    969

    This type of heater has parts that may be...

    This type of heater has parts that may be replaced by universal type parts, pilots, generators, gas valves, thermocouples. These and other parts are available at most heating and air conditioning...
  27. Answers
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    302

    This "blow back" is called roll out and can be...

    This "blow back" is called roll out and can be caused by delayed ignition, may have dirty burners or rusted, a good cleaning may be in order, Good luck, Mike
  28. Question: Metering Device

    by acetc
    Answers
    3
    Views
    527

    Equal pressures on both high and low side usually...

    Equal pressures on both high and low side usually means the compressor is not running, check the compressor's amp draw, no amp draw means it is not running. The only time I remember having equal...
  29. Answers
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    It is very possible that you are pulling attic...

    It is very possible that you are pulling attic air and hence the dust and inefficient system, you should have an air tight connection from the duct to the grill or register, the grill opening looks...
  30. Question: Changing thermostat

    by acetc
    Answers
    2
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    312

    It appears you are trying to replace a line...

    It appears you are trying to replace a line voltage thermostat with a 24 volt thermostat, (wrong thermostat) Line voltage means 115 or 230 volt, good luck, Mike
  31. Answers
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    830

    A heat pump can go into defrost every 45 to 90...

    A heat pump can go into defrost every 45 to 90 minutes of operation, defrost depends on the need to defrost, if yours is operating within this time frame I would say your fine, good luck, Mike
  32. Answers
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    703

    You could be having a problem with the defrost...

    You could be having a problem with the defrost control malfunctioning, this control is located in the outside unit and defrosts the unit on a time and need basis, Good luck, Mike
  33. Answers
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    1,672

    The red would connect to the "RC and RH" with a...

    The red would connect to the "RC and RH" with a jumper wire between the two, the blue wire will not be used , just tape it off.
  34. Answers
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    1,178

    What is the model of your old thermostat? Was it...

    What is the model of your old thermostat? Was it a line voltage thermostat?
  35. Answers
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    1,672

    Are you sure the blue wire is connected to a "B"...

    Are you sure the blue wire is connected to a "B" terminal or is it on the "C"?
  36. From your explanation it makes me think that you...

    From your explanation it makes me think that you have a two transformer system, the a/c system using the r, y, g terminals and the w and a terminals for the heating. If this is the case you will...
  37. Answers
    3
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    1,979

    The thermostat in the emergency mode will lock...

    The thermostat in the emergency mode will lock out the heat pump and only energise the electric heat strips, while in the aux. position the thermostat will bring on the heat pump first and if more...
  38. Answers
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    6,194

    You need to connect a drain line to it so that it...

    You need to connect a drain line to it so that it can constantly drain while in operation.
  39. The limit switch will probably have to be reset...

    The limit switch will probably have to be reset by pushing in on the button in the middle of the limit switch. The switch may be on the blower houseing or the front of the furnace, look for red wires...
  40. Answers
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    2,758

    Could be dirty burners, gas pressure, cracked...

    Could be dirty burners, gas pressure, cracked heat exchanger,or not venting properly. If the flame rolls out on start up it, probably dirty burners, Good luck, Mike
  41. Answers
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    6,007

    A little something to chew on, the reason natural...

    A little something to chew on, the reason natural gas causes flaking internally is due to the sulfur content in the gas, some states may have very low sulfur content and no problems therefore...
  42. Answers
    2
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    1,085

    You will have a thermostat in the outdoor unit...

    You will have a thermostat in the outdoor unit that is adjustable, but these are field installed and may not be in the same location , might want it adjusted by a service tech, good luck, Mike
  43. Question: Furnace error code?

    by acetc
    Answers
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    450

    (12) means the blower will operate for 90 seconds...

    (12) means the blower will operate for 90 seconds when powered up during a call for heat.
  44. Question: Furnace Problems

    by acetc
    Answers
    2
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    542

    Sounds like no 24 volt control power, see if...

    Sounds like no 24 volt control power, see if there is a fuse in the circuit board of the furnace, see if door switch on furnace is made(pushed in) this switch is in the blower section and pushs...
  45. Question: Goodman Furnace

    by acetc
    Answers
    2
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    422

    If you have a hot surface igniter it may be bad,...

    If you have a hot surface igniter it may be bad, see if there is a crack across the center of it, good luck, Mike
  46. Did you try reversing the polarity? (unplug the...

    Did you try reversing the polarity? (unplug the furnace and reverse the two wires connecting the plug in the wall to the furnace, black and white) The furnace will not work in heat if reversed. Good...
  47. Answers
    2
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    620

    It does not really matter which attic you put the...

    It does not really matter which attic you put the evapoator coil in, but the installation using the least amount of duct would be the most efficient.
  48. Answers
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    6,007

    No, you should not use copper pipe for natural...

    No, you should not use copper pipe for natural gas at all, and should never join copper pipe to steel or ferrous metals.
  49. Question: Air Conditioner

    by acetc
    Answers
    5
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    554

    If it is low on refrigerant, it may be cycling on...

    If it is low on refrigerant, it may be cycling on a low pressure switch. Observing the pressures and varifying the call for cooling is the only way to tell exactly what's going on , good luck, Mike
  50. Answers
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    Both prices seem to be on the high side to me....

    Both prices seem to be on the high side to me. Try putting some oil in the motor and spinning it by hand, get a different a/c company, shop around.
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