Gree Heating & cooling combined unit Parts — Browse All Models

How to troubleshoot your Gree heating and cooling combined unit when it won't start

• Check for electrical power.Check the house circuit breaker for the heating and cooling combined unit to make sure it’s turned on. Reset the circuit breaker if it’s tripped.
• Check the condensate drain.Heating and cooling combined units often have a float switch mounted on the evaporator condensate drain pipe that shuts off the air conditioner if condensate water isn't draining. Shut off power to the heating and cooling combined unit and check for condensate water backing up in the evaporator drain system. Clear the drain to reset the float switch and restore power to the heating and cooling combined unit.
• Check the thermostat. Make sure you have the thermostat set correctly. Adjust thermostat settings if necessary. If the thermostat doesn't have power, check its wiring and reconnect any loose wires. Replace the thermostat if it isn't working.
• Examine the electronic control board. Disconnect electrical power to the heating and cooling combined unit and check the electronic control board wiring connections. Reconnect any loose wires and repair any broken wires. Check for burn marks on the circuit board and replace the electronic control board if you see burnt spots or melted wires.

Clearing a clogged condensate drain line in your Gree heating and cooling combined unit

• Shut off the house circuit breakers for your heating and cooling combined unit to disconnect electrical power.
• Pull the float switch out and vacuum water from the condensate drain system through the float switch hole.
• Use a plumber's snake to clear the drain line to the outside of your home.
• Pour water through the drain line to make sure it's clear.
• Reinstall the float switch and restore power to the air conditioner.
• Pour one cup of liquid bleach through the drain line every six months to keep the drain line clear of algae.