Troubleshooting guide

Dashboard- Reactive Maintenance

Dashboard-Preventive Maintenance

Reactive Maintenance Report

Preventive Maintenance Report

HVAC Terms and concepts!

Absolute humidity It is a measure of the actual amount of water vapor present in the air, regardless of the temperature…

Various types of evaporator failure

Finding: Evaporator blocked by frost. Cause: Lack of or poor defrost procedure. Action: Install defrost system or adjus…

Various types of solenoid valve failure

Finding: Burnt-out coil Cause: Incorrect voltage/frequency. (Coil cold with voltage on) Check coil data. Action: Replac…

Various types of sight glass failure

Findings: Bubbles in sight glass after filter Cause: Pressure drops across filter too high. Action: Compare filter size…

Various types of liquid-receiver failure

Findings: Liquid level in receiver too high Cause: Partial blockage of a component in liquid line.   Action: Find the c…

Various types of filter drier failure

Findings: Filter drier cold, dew or frosting possible Cause: Partial blocking of dirt strainer in filter drier. Action:…

Various types of condenser failure

Findings: Condensing pressure too high Cause: Air or other non-condensable gases in refrigerant system.   Action: Purge…

Various types of compressor failure

Finding : Compressor is too cold. Cause : Possibly flow of liquid refrigerant from evaporator to suction line and compr…