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3_tons's avatar
3_tons
Explorer III
Jul 26, 2018

High amps at Air Conditioner

I have a Coleman Mach 1 P.S. 11k btu rooftop air conditioner (on a truck camper) that has had little use and works well, but seems to draw a high amount of amps per Colemans spec sheet.

Coleman specs suggest 9.0 amps total @95df ambient (including blower), but using a RMS Kill-a-watt meter, I measure a near consistent 11.6 amps at about 86df ambient, and my genny when in Eco mode struggles during compressor starts... Coils are clean..

Any ideas are well appreciated, thanks

3 tons.
  • 3_tons's avatar
    3_tons
    Explorer III
    Jul 26, 2018
    donn0128 wrote:
    2 amps is really not much. But its quite possible the motor is going bad. That is what draws almoat all the current.


    That was my first instinct too, but 2.6 amps above the rated 9.0 is about 25% over the Coleman spec...Just curious if this is out of line??

    Thanks,

    3 tons
  • donn0128's avatar
    donn0128
    Explorer II
    Jul 26, 2018
    2 amps is really not much. But its quite possible the motor is going bad. That is what draws almoat all the current.

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