Gas and Oil Home Heating Furnaces - coil is leaking

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07-22-01, 08:52 PM
I have change the outside unit(3 ton) for a bigger one(3,5ton) but I left old coil. It worked fine for one month, however now the coil is leaking. Could the difference in size would cause it too leak or the drain is just clog? Please help!!!! THANKS

07-22-01, 11:35 PM
Yes! They could both be the cause of this. The drain line cloud be plugged. You need to be sure that the evaporator coil is rated for a 3.5 ton unit. You also need to be sure that the blower in the furnace is rated for a 3.5 ton unit. If one or both of these thing are not rated for 3.5 tons, than you could cause the unit to freze-up and this can cause water to leak.
07-24-01, 09:45 AM
thank you , I will check this.