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Recent Suction Pressure questions

My Trane A/C is running but not cooling the house. It was

My Trane A/C is running but not cooling the house. It was installed July 2014, model 4TWX5036B1 for the outdoor unit, model AM7A0B30H21 for the indoor unit. All colored LEDs are flashing on the indoor unit. Help?

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Airheatman

Heating & Air Conditioning Contractor

6 years college

9,806 satisfied customers
Low head pressure and slightly high suction pressure on a

low head pressure and slightly high suction pressure on a rtu gas pkgJA: I'll do all I can to help. How long have you been dealing with this?Customer: todayJA: Do you plan on doing the work yourself?Customer: yesJA: Anything else we should know to help you best?Customer: r22

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,880 satisfied customers
Have worked on alot of these little dipping freezers a local

have worked on alot of these little dipping freezers a local ice cream vendors. a few have been a real pain because theyre old hussmans with newer compressors that have AB oil.you figure the previous had mineral oil cause of age. what happens is the high side creeps up and low will head to 0(psi). thinking the two oils arent getting along. so ive replaced the refrigerants withb ones compatible with both oils and success is limited at best. whats a cost effective way to treat this?

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,880 satisfied customers
My wet bulb in the house return is 60F, does it mean i have

My wet bulb in the house return is 60F, does it mean i have a low load and low humidity in the house?

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,880 satisfied customers
My suction pressure is 125 and liquid line pressure is 275.

My suction pressure is 125 and liquid line pressure is 275. This is after I replaced a bad compressor. Outdoor ambient is 95 degrees. Indoor temp was 85 degrees. The indoor coil wet on the lower part but dry on the upper half. What could be th problem. The unit is just not cooling enough.

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HVAC Guru

Service Technician

Associate Degree

25,572 satisfied customers
Xl 16 i 2 stage 2 ton on SV92 furnace. 60 ft. line set 25

xl 16 i 2 stage 2 ton on SV92 furnace. 60 ft. line set 25 ft. lift . XL824 stat. high head 390. low side 145. Will maintain temp with no dehumidifcation. Runs constantly. no sweat on suction line at coil. Expansion valve replaced --- no change. Any thoughts?

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,880 satisfied customers
LG model number lmu247hv if I run all 3 inside units temps

LG model number lmu247hv if I run all 3 inside units temps and pressure ok if only 1 temps and pressures drop to well below freezing on gaugesJA: Did you double-check the thermostat? And what about the unit's filters?Customer: Filters are clean I have the stat set for 68JA: Do you plan on doing the work yourself?Customer: Yes Dupree HVAC this is Mike DupreeJA: Anything else we should know to help you best?Customer: Why if all 3 running units run fine if only 1 or 2 running big change on pressures and coil tempJA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the HVAC Technician about your situation and then connect you two.

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

9,880 satisfied customers
I have low suction pressure and the head pressure is running

hello, I have low suction pressure and the head pressure is running high Checked liquid line temp and it was running very hot Cleaned both coils and checked filter W HAT MIGHT BE THE PROBLEMJA: I'll do all I can to help. How long have you been dealing with this?Customer: STARTED YESTURDAYJA: Do you plan on doing the work yourself?Customer: YESJA: Anything else we should know to help you best?Customer: CHECKED FOR LEAKS COULD NOT FIND TRIED ADDING FREON BECAUSE PRESSURES WAS RUNNING LOW AND IT STILL STARTED FREEZING UP AT THE CAP TUBES GOING INTO THE INDOOR COILJA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the HVAC Technician about your situation and then connect you two.

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Tim H.

Lead building engineer

Vocational, Technical or Trade Scho

4,640 satisfied customers
Getting error code 79.02. Anyway I can solve this? Son is

Getting error code 79.02. Anyway I can solve this? Son is cancer survivor and needs Ac and allergy. Trane systemJA: Have you checked for the code in the manual?Customer: Hard lock out I thinkJA: Do you plan on doing the work yourself?Customer: Try due to scheduleJA: Anything else we should know to help you best?Customer: No. Have fancy thermostat and can get tech access; I've turned it off; ion past had to go down crawl space, turn on some flashing lightJA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the HVAC Technician about your situation and then connect you two.

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Airheatman

Heating & Air Conditioning Contractor

6 years college

9,806 satisfied customers
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