Coleman mach 3 ac freezing up
We are having a freeze up problem with the ducted Coleman mach 3 ac unit. The evaporator is clean and the filter is new. We run it on high cold and turn the thermostat down from max cold. This past we...
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"Most RV shop techs will not know how to do that or will not have the equipment and that's why they always try to sell a new unit".
Partly true. I do have the knowledge and equipment, but at $130 per hour, it would cost with parts a minimum of $300 for me to check find and solder the leak and evacuate and recharge. IF the leak is easily found and does NOT include a Coil which will increase the cost. THAT is the reason we replace, NOT because we do not know how to do it and only want to sell new units. It is NOT cost feasible at most RV shops to repair RV sealed systems. THAT is why Dometic and RVP replace the upper unit under warranty. Also, as you stated about the wives tale of low charge. I cannot remember when I had a unit that had a low charge (no leak just a low charge) and I am going back over 25 years. Doug
Partly true. I do have the knowledge and equipment, but at $130 per hour, it would cost with parts a minimum of $300 for me to check find and solder the leak and evacuate and recharge. IF the leak is easily found and does NOT include a Coil which will increase the cost. THAT is the reason we replace, NOT because we do not know how to do it and only want to sell new units. It is NOT cost feasible at most RV shops to repair RV sealed systems. THAT is why Dometic and RVP replace the upper unit under warranty. Also, as you stated about the wives tale of low charge. I cannot remember when I had a unit that had a low charge (no leak just a low charge) and I am going back over 25 years. Doug
