Frequently Asked Questions

OLMO heat pumps are designed to deliver reliable heating performance across a wide range of outdoor temperatures. In very cold weather, the system may enter defrost mode periodically to remove ice from the outdoor unit. This is normal and helps maintain efficiency.

“dF” usually means the system is in defrost mode. The unit is temporarily clearing frost from the outdoor coil and should return to normal operation automatically.

Register your system within 60 days of professional installation. Keep your proof of purchase, model number, serial number, installation date, and installer information for warranty records.

Professional installation is recommended. Proper electrical, refrigerant, vacuum, and torque procedures are required for safe operation and warranty eligibility.

Coverage can vary by model and installation details. Compressor and parts coverage may require timely registration and proof of installation by a licensed HVAC technician.

Minor cosmetic blemishes that do not affect operation may not qualify for return. Shipping damage should be documented with photos and noted before signing the delivery receipt.

Manuals, wiring diagrams, troubleshooting information, and support resources can be found through OLMO support resources. Have your model and serial number ready when requesting help.

A mini-split is a ductless heating and cooling system with an outdoor condenser and one or more indoor air handlers. It is commonly used where ductwork is not available or where room-by-room comfort is preferred.