Colman roof ac unit replacement?
Let me explain my problem then Ill ask a question. Our last trip in June, the ac would get cold but would freeze up after a couple hours. We have had that problem before but always found the problem t...
Forum Discussion
This is the Coleman WebSite. It should tell you which current model A/C replaces what you have now.
Before you replace, do you know if the Compressor is actually running? If it is NOT, could be something simple keeping it from starting. If it IS running, is the small tube leaving the compressor HOT? Is the larger tube returning to the compressor COLD? Can you measure Current Draw? You'd need an AC (alternating current that is) clamp-on ammeter. If it's running, the AMPS should match the running rating on the compressor tag. If it's a lot HIGHER, compressor is dragging internally and probably running hot. "Could" be overcharged, but hardly possible since it has no service ports. If AMPS are LOW, it's likely undercharged or empty. OR, rare but happens, the motor portion inside the sealed shell has come separated from the compressor portion. Either of those and the A/C is junk unless you have access to free parts and/or free technician labor.
Have you eliminated ducting problems and the position of the Defrost Sensor?
Before you replace, do you know if the Compressor is actually running? If it is NOT, could be something simple keeping it from starting. If it IS running, is the small tube leaving the compressor HOT? Is the larger tube returning to the compressor COLD? Can you measure Current Draw? You'd need an AC (alternating current that is) clamp-on ammeter. If it's running, the AMPS should match the running rating on the compressor tag. If it's a lot HIGHER, compressor is dragging internally and probably running hot. "Could" be overcharged, but hardly possible since it has no service ports. If AMPS are LOW, it's likely undercharged or empty. OR, rare but happens, the motor portion inside the sealed shell has come separated from the compressor portion. Either of those and the A/C is junk unless you have access to free parts and/or free technician labor.
Have you eliminated ducting problems and the position of the Defrost Sensor?
