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Type: Posts; User: bob the head scratcher

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  1. Replies
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    Best to install the filters as the board i put on...

    Best to install the filters as the board i put on was a new date code.There was a problem on previous boards that carrier blamed the inducer noise causing lock outs.The new board is suppose to take...
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    3,193

    Thanks again guys!

    Thanks again guys!
  3. Some older coils are also not rated for the...

    Some older coils are also not rated for the higher pressures of 410a.Would replace everything.
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    Thanks for the heads up.The valve i have is a ITT...

    Thanks for the heads up.The valve i have is a ITT General controls and the fluid is red almost looks like tranny fluid.Any idea as far as disposal goes?
  5. I have always used sand cloth as well and never...

    I have always used sand cloth as well and never had a problem.However I now use steel wool as it was explained to me that sand cloth contains silica and coats the sensor which will have a negative...
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    old lennox rooftop

    worked on a gcs3 1353 350a 10j today.Regulator in unit shot.Removed manifold assembly as it seemed the only way to change the regulator.Every time the gas valve is not 100% upright it leaks...
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    thanx

    Thanx for the input.Went back the other day and checked the voltages for the inducer .All was okay.Installed a ferrite core on the low voltage line.Might return and do the same to the flame sensor...
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    carrier rooftop woes

    Worked on carrier m#48gs024060301 s#1203621234 .got there amonth ago to a code 8(internal control fault).Replaced board and two weeks later same problem.If you turn the power off and back on unit...
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    Heat exchanger ok?

    Heat exchanger ok?
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    What were you setting the thermostat to before or...

    What were you setting the thermostat to before or were you turning the system off until you were uncomfortable?
  11. Replies
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    1,136

    What made you decide to check the compressor...

    What made you decide to check the compressor valves in the first place?Why is the unit shutting off if there are no pressure controls?
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    Best way that i know of to check for non...

    Best way that i know of to check for non condensibles in the system is to check the head pressure with the unit off and associate it with the p/t chart then measure the temperature at the condenser...
  13. Unfamiliar with carrier controls but i would...

    Unfamiliar with carrier controls but i would assume that the system has a setting for dehumidify and would be curiuos to know what this is set at.Also usually this setting will allow unit to run at...
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    Thanks for the advice and sorry for the bad...

    Thanks for the advice and sorry for the bad info.Yes the unit is 3 phase and short cycling is performed through the curcuit board as well as staging of three compressors for each unit.
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    Having problems with a building that has 2 15 ton...

    Having problems with a building that has 2 15 ton Lennox L series units.Replaced 1 compressor in 1st unit last year.1 compressor in 2nd unit this year.Went there today to find a compressor in 1st...
  16. I don't deal with zoning very often so i have...

    I don't deal with zoning very often so i have limited knowlege there,however i would find it hard to believe that the charge is ok if no refrigerant was added as i believe that the manufactures...
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    RoBo Teq is right its pretty hard to know when...

    RoBo Teq is right its pretty hard to know when you don't have all the information.Given the size of the furnace it will most likely be a 1/2 or 3/4.You should find the model number because some of...
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    yeah i guess that would help!the model number is...

    yeah i guess that would help!the model number is a hmc012kdi and the unit is made by icp.the unit is just under a year old.
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    Loosing fuse in outdoor board.checked for shorts...

    Loosing fuse in outdoor board.checked for shorts to ground in motor and compressor.capacitor o.k.Replaced board unit ran 5 seconds turned power off and on fuse blown and board defective.any advice on...
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