Lennox Air Conditioner EL17XC1-036-230

Turn the electrical power to unit OFF at disconnect switch

Have you checked the indoor unit filter this month?

Was the indoor unit filter replaced or cleaned?

Have you checked the indoor unit drain line for obstructions?

Was the drain line free of obstructions?

Weigh in a trace amount of HFC-410A (max 2 ounces or 3 pounds pressure)

Pressurize the system with nitrogen

Verify refrigerant is measurable with a leak detector

Disconnect gauges from service ports after leak testing

Inspect component wiring for loose, worn or damaged connections.

Check for any rubbing or pinching of wires.

Confirm proper voltage of outdoor unit.

Confirm proper amperage of outdoor unit.

Check cleanliness of outdoor fan.

Inspect blade condition for cracks.

Ensure the EL17XC1 unit is powered off

Verify that the refrigerant piping is connected

Measure the length of refrigerant piping in feet

Calculate additional refrigerant charge for piping over 15 feet

Add additional charge as per indoor coil match-up on unit charging sticker

Charge Verification and Adjustment

Check the charge using the tables on the charging procedure sticker

Turn on the air conditioner to check operating functions such as startup and shutoff operation.

Note any unusual noises or odors during operation.

Measure system pressures as needed.

Check the refrigerant charge per the charging sticker information on the outdoor unit.