CH04 - Float switch activated or drain pump issue

Was bedeutet CH04 ?

This code indicates the float switch in the fan coil unit has risen due to high water level. If the unit lacks a drain pump, it means a jumper plug is missing from the drain terminal.

• High water level in the drain pan
• Missing drain float switch jumper plug

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check the drain pan for obstructions or blockages that may cause water to back up.

2. 2

   If the unit has a drain pump, ensure it is functioning correctly.

3. 3

   If the unit does not have a drain pump, verify that the jumper plug is correctly inserted into the CN FLOAT terminal.

4. 4

   Reset the unit's power to clear the fault after the water level has dropped or the jumper is replaced.