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If I keep having a problem with my inside coil freezing up and I have already cleaned it, had freon check, and can not find no leaks. what could keep causing it to freeze up? The Dryer? I need help

Submitted: 158 days and 5 hours ago.

Category: HVAC

Value: $15

Status: AWAITING CUSTOMER ACTION

Posted by Billy 158 days and 5 hours ago.

Info Request

The biggest items are air flow related and low on charge. If you had the running pressures I could tell you more. A plugged dryer could do it , undercharge, weak airflow. If the dryer is the culprit it freeze right after the dryer.

158 days and 5 hours ago.

Reply

The guy I have working on it (I wonder if he knows what he's doing) said the low side was 40 before he put freon in it and after the low side was 60. it is also still freezing up on the brass coil part on the inside but not the whole coil is freezing.

158 days and 5 hours ago.

Reply

what more do you need?

Posted by Billy 158 days and 5 hours ago.

Info Request

you start freezing at 60 and below. Depending on your temp outside and inside should be closer to 70-75 psi

158 days and 5 hours ago.

Reply

Well I am in Alabama and it is hot here about 80 outside and 75 or so inside.

Answer

I would come close by saying head presuure around 250-260 with a suction of 75......this is guestimate...tepms ,superheat etc would be used to calculate.

BUT.....surely not low as 60

Accepts:
Expert:	Billy
Pos. Feedback:	99.7 %
Answered:	6/17/2009

HVAC Mechanic

State Licensed Mechanical Contractor, Heating, Cooling, Oil Burners, Heat Pumps, Boilers, Geothermal

158 days and 4 hours ago.

Reply

so does it sound like a leak problem, dryer problem or what?

Posted by Billy 158 days and 4 hours ago.

Info Request

Do you know what the head pressure was? Then I could tell.

158 days and 3 hours ago.

Reply

I do not know

Posted by Billy 158 days ago.

Info Request

If you can find out at all let me know and I can tell you pretty much what is going on.

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Question

If I keep having a problem with my inside coil freezing up and I have already cleaned it, had freon check, and can not find no leaks. what could keep causing it to freeze up? The Dryer? I need help

Info Request

The biggest items are air flow related and low on charge. If you had the running pressures I could tell you more. A plugged dryer could do it , undercharge, weak airflow. If the dryer is the culprit it freeze right after the dryer.

Reply

The guy I have working on it (I wonder if he knows what he's doing) said the low side was 40 before he put freon in it and after the low side was 60. it is also still freezing up on the brass coil part on the inside but not the whole coil is freezing.

Reply

what more do you need?

Info Request

you start freezing at 60 and below. Depending on your temp outside and inside should be closer to 70-75 psi

Reply

Well I am in Alabama and it is hot here about 80 outside and 75 or so inside.

Answer

I would come close by saying head presuure around 250-260 with a suction of 75......this is guestimate...tepms ,superheat etc would be used to calculate. BUT.....surely not low as 60

Reply

so does it sound like a leak problem, dryer problem or what?

Info Request

Do you know what the head pressure was? Then I could tell.

Reply

I do not know

Info Request

If you can find out at all let me know and I can tell you pretty much what is going on.

Related HVAC Questions

I would come close by saying head presuure around 250-260 with a suction of 75......this is guestimate...tepms ,superheat etc would be used to calculate.

BUT.....surely not low as 60