Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
NO A/C
Jim Pompetti
Member Posts: 552
We I got there all was running , plugged filter , replaced . Check Refrigerant , no water on the floor . Look like a bad compressor or condenser fan motor . Four hours later call back no A/C . This can go on forever, everything amps out ok . Anyone have any tricks , that will identify which item is causing the problem.
0
Comments
-
Things that reset themselves.
Pressure switches, Thermal switches.
Microchannel condenser coils are easily overcharged and will trip the high pressure switch. By the time you are out there, the switch will have reset and the weather might have cooled off a bit too making everything look normal. A dirty condenser coil could do the same. Slightly bad bearings on a fan motor may feel loose when the motor is cool but after the motor is running for awhile and heats up they can increase the friction on the shaft and end up tripping the motor on thermal.
What is the compressor discharge temp? Lower then normal suction pressure combined with a high superheat could cause the compressor to trip on thermal.
Harvey0 -
Which switch?
Assuming it is a press switch, you can try a "Tattle Tale" device. It goes across the contacts/wirers of the press sw. & when a sw. opens the Tattle Tale blows, like a fuse.0
Categories
- All Categories
- 86.3K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 53 Biomass
- 422 Carbon Monoxide Awareness
- 90 Chimneys & Flues
- 2K Domestic Hot Water
- 5.4K Gas Heating
- 99 Geothermal
- 156 Indoor-Air Quality
- 3.4K Oil Heating
- 63 Pipe Deterioration
- 916 Plumbing
- 6K Radiant Heating
- 381 Solar
- 14.9K Strictly Steam
- 3.3K Thermostats and Controls
- 53 Water Quality
- 41 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements