Welcome to

My AC Doctor

Air Conditioner & Refrigeration Maintenance Tips, Solutions

Heating, Ventilation, Air Conditioning and Refrigeration (HVAC-R) systems are essential parts in our modern daily life. We need controlled temperature and humidity in almost everywhere, from residential houses, mobile containers to business buildings including business centers, hospitals, warehouses, laboratories, etc.

To help residential house owners, small business owners and professional HVAC-R technicians find solutions to their failed air conditioning and refrigeration systems, a lot of basic HVAC-R knowledge, maintenance tips and Youtube videos are collected and listed in different categories. No matter who you are I hope you can find the information you need on this website. If you have any concerns please feel free to contact me, an insured, Louisiana Statewide Commercial License Contractor.

Basic Knowledge

HVAC-R 101

ac working principle

Air Conditioner Systems

How AC works at residential & light commercial buildings

heating system

Heating Systems

Basic Knowledge of Several Heating Systems

restaurant refrigeration equipment

Business Refrigeration

The principle of commercial refrigeration systems is …

walk in cooler walk in freezer

Walk In Cooler/Freezer

How Restaurant Supermarket Walk In Cooler Freezer work

residential refrigeration

Residential Refrigeration

Household refrigerators, freezers, ice makers, …

restaurant ice machines

Ice Machines

How commercial Ice Machines Ice Makers work

hvac-r terminology

HVACR Terminology

Some terms home & small business owners may know

HVAC-R Symbols

HVACR Symbols

Schematic symbols HVACR tech & DIYer should know

My AC Doctor

Why Visit This Website

air conditioner repair baton rouge

Informative & Fun

  • Videos by Pro HVAC-R Technicians
  • Basic HVAC-R Knowledge
  • Failure Symptoms
  • Diagnoses
  • Maintenance Tips
  • And Other Home Appliance Info

135

Videos

28

Articles

46

Symptoms

27

Parts

By Parts

Diagnosis & Maintenance

air conditioner condenser coil

Condenser Coil

  • Blockage
  • Leaks
  • Fin
  • More info …
Explore
air conditioner compressors

Compressors

  • Overheat
  • Loud Noise
  • Electric Issue
  • Burn-out
Explore
air conditioner pressure switches

Pressure Switches

  • Leaks
  • Always On/Off
  • Quick On/Off
  • More Symptoms
Explore
air conditioner switches

Contactors

  • Chattering
  • Humming
  • Always On/Off
  • Tripping breaker
Explore
air conditioner capacitors

Capacitors

  • Compressor Wouldn’t Run
  • Fan Wouldn’t Run
  • Compressor or Fan On/Off
  • Triggering Breaker
Explore
condenser fan motor

Fan Motors

  • Not Running
  • Loud Noise
  • Overheating
  • Slow Running
Explore
evaporator coil

Evaporator Coils

  • Iced Up
  • Blockage
  • Half Cold
  • Strange Odor
Explore
air conditioner metering devices

Metering Devices

  • Starving Evaporator
  • Partial Freezer-up
  • Low Suction Pressure
  • High Liquid Pressure
Explore
gas furnaces repair

Gas Furnaces

  • No Heating
  • Wouldn’t Stop
  • Short Cycling
  • Not Enough Heat
Explore
electrical heating element

Air Handlers

  • No Heating
  • Not enough Heat
  • Odd Noises
  • More …
Explore
air conditioner thermostats

Thermostats

  • No Battery
  • No Low Voltage
  • Malfunction
  • More …
Explore
ac p trap

Condensate Line

  • AC Shut Down
  • Water Spillage
  • Mold Contamination
  • More …
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