E4 Error Message

NOTE: An E4 Error message applies to BPP Series Portable Air Conditioners

E4 Error is a FULL WATER TANK message. This indicates that the water tank is full and requires draining.

BPP Series air conditioners are equipped with auto water evaporation so the water compartment would not typically fill in cooling or heating mode unless there is high humidity. Water drainage will generally only be required at the end of the season for these modes. (see START-END OF SEASON OPERATIONS in your Instruction Manual provided).
When the water level reaches a predetermined level, the “Full Tank” indicator light located on the control panel of the unit goes on. If an error code appears on the display screen on the control panel “E2” in COOL mode or “E4” in HEAT mode. The unit will have to be drained.

Intermittent Draining
• Unplug the unit from the power source. Carefully move the unit to a drain area over your basement floor or drip pan (not included). Remove the bottom drain cap.
• Let the water drain away and replace the drain cap. Restart the machine until the error codes E2 or E4 disappears. If the error repeats, call customer service regarding any glitches or repeated error messages.
NOTE: Be sure to reinstall the bottom drain plug before using the unit.

For more information on E4 Error codes, please refer to the WATER DRAINAGE section in your Instruction Manual. Instruction Manual is also available for download here.