EasyStart Troubleshooting: System is Not Cooling

Normal System Operation

When the thermostat calls for cooling (or heat-pump heating), power is applied to EasyStart. EasyStart's LEDs should illuminate, and after a brief internal delay, the compressor will start. EasyStart continues to run the compressor until the thermostat is satisfied and removes power from both EasyStart and the compressor.

System Not Cooling? - Troubleshooting Procedure

If the system is not cooling as expected, follow these steps to determine if EasyStart needs replacement or if further troubleshooting is required.

1. Inspect EasyStart

   • Visually inspect the EasyStart unit for any physical damage.
   • Look through the EasyStart lid to identify the three LEDs: POWER, NORMAL, and FAULT.

2. Call For Cooling

   Set the thermostat to call for cooling (or heat-pump heating). Ensure the system is powered on. Wait at least 3 minutes to allow for any system delays.

3. Inspect LEDs When Expecting Cooling

   Observe the EasyStart LEDs. The following scenarios indicate different troubleshooting paths:

   • POWER, FAULT, NORMAL LEDs are ON: Go to Procedure A.
   • POWER and FAULT LEDs are ON, NORMAL is OFF: Go to Procedure B.
   • POWER and NORMAL LEDs are ON, FAULT is OFF: Go to EasyStart OK - Inspect System.
   • POWER LED is ON, FAULT and NORMAL are OFF: Go to Replace EasyStart.

Procedure A: No LEDs Active

If no LEDs are active, a voltage check is necessary.

1. Setup Voltmeter

   Connect the voltmeter leads for AC voltage measurement. Ensure the meter is set to measure AC voltage and the appropriate range. Consult your voltmeter manual for specific instructions.

2. Call For Cooling

   Initiate a call for cooling via the thermostat. Verify the system and EasyStart are powered. Wait at least 3 minutes for system delays.

3. Probe EasyStart For Incoming Voltage

   Measure the voltage between the EasyStart's white and black wires while the system is expecting cooling.

   WARNING: HIGH VOLTAGE This procedure involves measuring high voltage, which can cause serious injury or death. If unsure, contact a local HVAC technician or electrician for assistance.

4. Interpret Voltage Reading - No LEDs Active

   • No Voltage (0 V AC): Go to EasyStart OK - Inspect System.
   • Low Voltage (e.g., 0-99 V AC): Go to EasyStart OK - Inspect System.
   • Normal Line Voltage (e.g., 120 V AC or 240 V AC): Go to Replace EasyStart.

Procedure B: Flashing Red LED

If the FAULT LED is flashing red, determine the flash code meaning.

EasyStart OK - Inspect System

If EasyStart is functioning normally but the system still has issues, further system troubleshooting is required. Field solutions may exist that do not involve replacing EasyStart. Resources for further troubleshooting include:

• EasyStart Knowledge Bank: Access guides on installation, operation, and troubleshooting, including Indicator Lights Definitions, Installation and Wiring, Basic Troubleshooting, Advanced Troubleshooting, and Bluetooth Manual. Visit: https://www.micro-air.com/kb_easystart.htm
• Dealer Map: Locate associated technicians and RV shops for installation and troubleshooting services. Visit: https://www.microair.net/pages/find-a-dealer

An A/C service technician can help diagnose system and root causes.

Replace EasyStart

If EasyStart appears to have failed, contact your point of purchase with details of your troubleshooting process. If purchased directly from Micro-Air, contact them via their website for further assistance. Provide the product model number, serial number, and a description of the issue and troubleshooting steps taken.

Main Website (Contact Us): https://www.microair.net/