How old is my Comfortmaker A/C unit?

Looks like a 3 ton system.

Check the contactor on the outdoor unit. Sounds as if it's pitted and has stuck closed. Functions just like a pressure switch on a well. ( if that helps) it can be disassembled and filed clean but better off to replace. 240 volts hurt ALWAYS TURN POWER OFF. Good luck!!

Based on your model number, looks to me like its a 3 ton (036).
ie. 024 is a 2 ton. 036 is a 3 ton. 048 is a 4 ton. Etc etc

You have provided the model number and serial number and that is great help but who is the manufacture? trane? comfortmaker ?

Comfortmaker 10 means simply it is a 10 SEER system. Unable to determine the OUTPUT size without the Model Number. Go to the Outdoor Unit Nameplate and locate the Model No. Here is an easy way to determine the "SIZE" of the "Comfortmaker 10 HVAC" Systems:

Model No.: OUTPUT Size (Nominal Tons of A/C):

NAC015 1.5 Ton Unit

NAC024 2.0 Ton Unit

NAC030 2,5 Ton Unit

NAC036 3.0 Ton Unit

NAC042 3.5 Ton Unit

NAC048 4.0 Ton Unit

The BTUS are part of the model number and the Manufacturer will give you the AFUE rating or just call a local comfortmaker wholesaler listed locally. Good Luck

Make sure you have gas to the unit and the switch on top of valve is turn to on. Can you here the gas valve click? It igniter comes on and a delay and the gas valve should come on. Kill power to furnace to reset control board. Rus Let me know how it goes.

if it is a split system that is permanently installed in your house the reset button will always be near the compressor so that means on the outside unit somewhere, you probably wont need to remove any screws to get to it. but before you press that button and think all is well, why did the reset button trip? answer> because it is a high pressure cut off. your unit probably reached over 350psi on the high side line or possibly even higher. that is not good. you may have a dirty condenser coil (outside) and you can just hose that out with a garden hose (pull the disconnect first). or you may have a rotting out coil if your unit is old or you live less than 5 miles from the ocean. Or you may have a bad condenser (outside) fan motor. check that out. if it overloads again after hitting the reset (which this unit may not even have, not all units have these just the higher end ones) well if it does overload again call a licensed ac guy trust me it will cost you less in the long run.

the mfd and volts should be printed on the outside of the capacitor the higher rating mfd is for the compressor and the lower for the fan
if there is no number on it there should be a mfd rating on the motor and compressor if i had to guess i would say for a 3ton system maybe a 35/5mfd 440v
if you are having that much trouble finding those numbers i would call a wholesale house for that unit and ask make sure you have your serial number too
hope this will help

1993