frankwp wrote:
profdant139 wrote:
So, now we will test out the a/c and see if it still ices up (as it had been doing). If it does, we will call a mobile repair guy. We gave it our best shot, and there is nothing more that we can do by ourselves.
There is a time to boldly DIY, and then there is a time when discretion is the better part of valor.
Icing up indicates insufficient airflow over the evaporator coil, so either the filter is clogged or the coil is dirty.
In addition, excessive icing up under normal air temperatures and humidity can be a sign of low refrigerant when the A/C starts losing refrigerant.. And with most RV A/C units, it is factory sealed with no service ports..
There is a way to determine if you have proper refrigerant levels without a port described
HEREHERE is a video showing a basic diagnosis using compressor amp draw along with in temp and output temp.
And sometimes there is absolutely nothing wrong with the A/C and it freezes up due to the air temps and humidity level at the time of use.
