Bosch Evaporator Icing / Low Suction Pressure

Unit runs but ice forms on the indoor coil or suction line.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Very dirty filters or coil, Indoor fan not running at full speed, Low refrigerant charge, Thermostat set too low with low ambient temperature

Safety first: Turn off the unit if you see ice buildup.

Steps:

Defrost: Turn the unit off and allow all ice to melt. Place towels to catch water.
Clean filters and coil: Wash filters and clean the indoor coil.
Check fan speed: Ensure the indoor fan operates correctly at all speeds.
Adjust setpoint: Avoid setting the temperature extremely low, especially in mild weather.

If icing recurs: A Bosch technician should check refrigerant charge and system pressures.

Medium 3/5

Indoor Evaporator Coil

Check Price on Amazon

We may earn a commission from links on this page.