Coleman Mach III Air Conditioner - Page 4 - Answered Questions & Fixed issues
Fan barley turns but can
Sounds like fan start capacitor is defective, or fan itself. Capacitor gives fan the necessary boost to start, then it will run on regular voltage once it's up to speed. If your not experienced with electrical and especially capacitors, please get proper tech help, as capacitors can give a very high voltage shock, which could be fatal.
AC for my RV won't
You are saying it causes the breaker to trip?( or was past tense?) sounds like there is a short somewhere. that's why nothing comes on
Fan won't run it makes a buzzing noise and
Hi miggy41587...
Look on the fan at either end and you should see a plastic cap, remove the cap and drop 2-4 drops of a good grade of machine oil to oil the bearings of the fan.
Again use your finger to get the fan going, once it is going it should run by itself after that.
Please take time to rate me
The unit seems to work but doesn't get very
Hi fionajcamero...
I does not make a difference on the electrical plug how you plug it in.
Your problem is low on freon, have the level of (gas) freon brought to the right pressure and your cooling problem will be gone.
You may have a minor leak allowing the freon to escape, have the system checked for a leak.
I need to know what
Low, med, or high cool, on left, and blue band at it's widest on temperature control.
Had my camper in storage for almost ten months.
If you have 12 volts back to control box at "y" terminal when thermostat on cool calling for compressor, then relay in box not functioning properly or bad printed circuit board in control box.
I have a 85 coleman
It's a closed system, no fittings. You can have system recharged but would need to evacuate, cut lines , solder on fittings, re-charge etc and that gets pretty expensive. Usually better off to replace with new and get warranty with it. Do you hear compressor even trying to kick in? It may be something less expensive. Give me a quick rundown on when it ran good last, what appears to be happening now. Maybe I can help.
Our new colman mam
I'd remove cover on roof and observe (carefully, with breaker shut off inside) blades on condenser fan as well as blower while spinning slowly first, and look for possible bent blade on rear fan blades, or even a mudwasp nest on either. If it happened immediately after installation, perhaps the small weights on blower wheel have come off, or shifted. At worse you may have a faulty or loose mount or bad bearing in fan. If it's been running good for a while, probably a nest has been added. Careful when taking cover off, for wasps, or yellow jackets under cover. If not obvious when spinning slowly by hand, stand back and have someone turn it on to see if you can determine where trouble is when running on high.
I have a 6799a800 series
Sounds like fan start capacitor is faulty. That is your cooling fan above as well as blower inside, all in one motor.
Our unit has been working
Hi,
The fan/condenser motor bit the dust....when that goes nothing works... can be a ****** to get a new one and change it...need to take it apart from the top...
It will then look something like this...the motor you will need to change is the one under that flat sheet metal shield in the center...
heatman101
How to install the coleman 48203
Here's a link for all info on those units and all RVP products. They have installation manual etc, just search a little. ( http://www.rvcomfort.com/rvp/tech_info/manuals.php )
I installed a new rooftop
If this is a 'new' unit I would contact Coleman and explain the problem you are having. I would think that they would have to honor the warranty on the unit. That is, if a AC company installed the unit. However, from your explanation of the problem it appears that you might of installed the unit yourself in which case - 'they' (Coleman) might decide to 'not' honor it. A gray area for sure. Still, I would try and see if they would help you.
In the case they won't - I would get ahold of a AC Tech and have him/her troubleshoot the unit before I started removing and adding electrical components.
From what you've said - I wouldn't think you have anything seriously wrong - you just need someone to figure out why it's not working as it should.
My best guess - is that it's a simple electrical problem that can be solved with one service call and for a minimum cost.
Worst case - might be a major component (i.e. compressor) that is bad (which is not likely) but in any event with the AC Tech's help - Coleman would probably honor the warranty on the compressor and you would only be out the labor for the AC Tech to install it. Note: some warranties will even cover the labor to put it in.
Bottom line - I would try to get Coleman to help me directly or with the help of a AC Tech, and in the event they won't - I would trust the AC tech to find the problem and repair it.
The fan is rubing the shroud on my new mach 3 a/c
Hi,Yes, but do it carefully and keep it to a minimum...Also make sure to check the fan blade and the motor bearings to make sure that there is not another problem that is causing it to hit before making the opening larger...heatman101
Roof top a/c not cooling.
Ends of that wire(s) should have a probe on one end, and connector on the other. Plug connector in to control box where it matches, then stick the other end in to coils about 3" up from bottom of coils/fins. You may have to push and wiggle a bit but allow it to slide in between the fins, and insert until most or all of probe is inserted. You may even see old location if you look close with flashlight, and just re-insert it there. That senses frost at bottom of evaporator and will shut down compressor to allow unit to defrost if it freezes up for any reason. The end opposite the connector may also have a round disc like sensor that has a clip on back to snap on to evaporator tubing , usually in lower left corner, again look for old location.
That really shouldn't stop it from cooling in your case. Do you hear compressor kick in, and are you getting any cooling at all? Do you have model number off bottom of roof unit? What type of thermostat are you using?
Coleman mach 8333a871 - I
You can check with a multimeter that has a micro Farad checker you can read on the cap what the mF is and what the range will be plus or minus a certain percent. You can change it just remember how you took the wires off. example 80mf cap plus or minus 10 percent would be72-80 would be good cap.
A/C thermostat working, squirrel cage fan assembly
It may just be your compressor start capacitor that needs replacing. If not experienced working with capacitors, I must warn you to handle with insulated pliers at the very least as they can give a ZAP of 300 + volts even when disconnected from power. Give me your model number but don't take unit off the roof yet, it may be fixable right where it is. Be sure to shut breaker etc off before removing cover on roof.
I have a coleman mach
Have you tried thourghly cleaning the unit? Sometimes over a period of time these can buildup deposits inside affecting its function.
Not finding what you are looking for?