Question about Ruud UBHC Air Conditioner

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Inside unit not blowing air

Inside unit not blowing the air and the unit is freezing up. noticed on inside of unit that their are 3 lights 1# furnace 2# ok 3# power. the light in middle is flashing.

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The flashing light may be a diagnostic light. So count the sequence of flashing lights and write the number down like this example. Short(flash),Short(flash), Long(flash) Long(flash), Long(flash.

Usually on the other side of the blower compartment door there is a list of possible failures that will coincide with the number of flashes.

My guess is that the system is low on refrigerant. This has caused ice to form on the evaporator coil that is above the furnace. The ice will block the air from moving through it.

You will need an EPA certified technician to recharge the system and locate the leak. Make sure to shut off the A/C and allow it to thaw before he/she arrives to services it.

There are other possibilities but this one is probably the most common. Good Luck!

Posted on Jun 16, 2008

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have you brought it down for a general cleaning on the 3 year period? if not then that's what it needs now.

the coil is freezing up because of dirt accumulation on the coil. even there is a filter, still with in 3 years it could have accumulated to decrease the airflow thru the coil and freeze it up.

tnx 4 using fixya,

drcool

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