20 Most Recent Coleman Mach 15 Air Conditioner Questions & Answers

That is correct the solar panel will charge the RV battery which is connected to an inverter. This converts the DC power to AC for the AirCon.

Try changing out the start up and run capacitors for the compressor.

It should be a 42,000 BTU or 3 1/2 ton.

Have you checked the high and low pressure switches on the unit? If you are cycling on and off, look at your pressure switches to see if they are opening during operation. Also, when was the last time you cleaned out the condensing unit coils with soap/degreaser and clean water?

Sounds like you have dirty condenser coil or bad condenser motor if it runs fine in the night

It is likely the AC units control panel has failed.

Go to airxcel.com, you should get some options, to get either their literature or tech support and they should be able to help you.

There are grooves on both sides of ac unit on a camper and it drains down the roof to a little gutter that travels the water towards end of camper and drains. Most of the time down the side of camper, but if these Grove are stopped up it will not allow it to drain and cause it to overflow inside camper. If filter is very stopped up or evaporator coil is stopped up, fan not running, low on refrigerant, or having the thermostat set way to low can cause it to freeze up and when this water thaws out it is too much for the drain to handle and also ice could be sticking being the drain pan melting causing it to go in your camper. I would check filter and those drain grooves first.

Here's a link to a service manual, with step by step tests to determine whats wrong. I'm thinking compressor shot, but this should confirm, and or help you determine for yourself. Be careful with those capacitors eh !! Read warning in service manual.

http://www.rvcomfort.com/pdf_documents/1976141_copy.pdf

either bad fan motor or dirty condenser coils need cleaned..possible obstrution with fan motor keeping it from turning.

If you Google airxcel.com, you should get some options. to get either their literature or tech support and they should be able to help you.

Hi,

Fan problem could either be the starting capacitor or the motor itself. Often it would just be the capacitor and you could verify this by a humming/vibrating sound coming from the motor as if trying to turn but is not capable of. If it were the motor burned, the unit would have excessive current tripping the breaker or a fuse blowing.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Sounds like classic capacitor failure. A capacitor stores electric energy so that the motor can overcome starting torque by making a big shot available. AC motors must run at rpm's that correspond to the 60 hz alternating current frequency. Theory says this rpm is attained in an instant; reality includes momentum that requires a short but big initial current requirement. If that isn't available, the motor can't generate the power to accelerate to operating rpm. The capacitor provides this power. You can also provide it with a spin. A capacitor is a capacitor and as long as you get one with a micro farad rating at least as big as the one your take off, but as close as possible and not too big, that may solve your problem. Their cheap and replacing both may be less trouble than doing the job twice. If it’s built-in, you may need the whole motor. I been there and mine runs fine.

have to remove cover on roof to access

function of thermostat to cycle off

if they are frozen might have to drill out

that is a ground wire there for safety.