Chat with one of our friendly reps to get help quick.

Something on your mind not found here? E-mail us.

We offer phone support if you don't want to type.

Support Center

Answers to frequently asked questions, from shipping and delivery to the operation of your equipment. Our ever-growing and extensive library of support topics should be able to answer all common queries.

Pioneer HVAC Systems Questions and Answers Base - Help Center

When the power goes out, do the units need to be restarted manually?

How Do I Determine the Breaker Size and Wire Needed for a Pioneer HVAC System?

How is the System Powered?

The Indoor Unit Does Not Turn On

Difference Between 120V and 240V Systems

Electrical Related General Queries

Does the Fan Ever Shut Off in Cooling Mode?

Are Pioneer Systems Factory Pre-Charged with Refrigerant?

How to Check the Resistance of a Pioneer Temperature Sensor

I Have a Leak in My System But I Cannot Locate It

How to Locate a Pioneer Model Number or Serial Number

How to Apply Pioneer Flare Leak Guard

Pioneer Lineset Diameter Reference Guide

What Does It Take to Install a Mini Split?

What type of oil is used with the unit?

Why would a ductless mini split freeze up on the inside air handler if its cooling reasonably well, the filters are clean, and the level of refrigerant charge is proper?

HVAC Related General Queries

Can a wall-mounted unit be mounted onto the ceiling instead?

Can the unit be operated without a remote control?

Can the LED Display on the indoor unit be turned off?

Can the line set exit from the side of the indoor unit, rather than the back/through the wall?

Does the indoor unit require anything extra in order to be mounted to the wall?

What is the ideal height for the unit to be mounted at?

What is the weight and dimensions of the indoor unit?

Indoor Unit

Is there a recommended resource to find a professional that is located near me?

Can the line set be angled upward?

What gauge of wire is used for connections between the ductless mini split indoor and outdoor sections?

What hole saw size is needed to drill the wall for accommodating the drain and refrigerant lines?

What is the approximate cost and time spent to have the system installed?

What size torque wrench is needed?

Wire-related questions (Power whip, comms wire)

Who is permitted to install the A/C?

Installation

My Pioneer Wall-Mounted Mini Split is Leaking Water

Plumbing and Drainage Queries

How Can I Access Manuals and Important Technical Documents?

What is the Telephone Number to Receive Tech Support?

Technical Support

General Technical Questions

Can a single zone mini-split be used with multiple indoor units?

Cooling Only Systems

Can I Order Different Lineset Lengths?

Do these Split-Type systems function as dehumidifiers?

Do you carry Hyper-Heat units (-22°F)?

Do you offer any discounts?

Do you Offer Pre-Charged Linesets?

How Can I Obtain Spare Parts?

How Do I Determine the Unit Size I Need for My Space?

How do I find an installer for my Pioneer Mini Split purchase?

How do I make a return?

How do I use my Pioneer Rewards Points when shopping?

All About Energy-Star Tax Credits and Rebates for Pioneer Split Systems

How is power received into the units?

What does “multi-zone” mean?

What is the difference between Inverter+ and Inverter++?

What is the life expectancy of the air conditioner system?

Energy Star Tax Credit / IRS Information FAQ

Which units are rated Energy Star?

About Authorization Charges

Frequently Asked Questions

WHAT TO EXPECT

REFUND ELIGIBILITY

RETURNING AN ITEM

RETURN FEES

RETURN POLICY

STARTING YOUR RETURN

UNDELIVERABLE OR REFUSED SHIPMENTS

Returns and Refunds

Free Shipping

Shipping Details

Shipping & Delivery

Under what conditions am I covered under warranty?

How long is the warranty?

Warranty

Online Shopping

Error Code E0

Error Code FY

Indoor Unit Displaying 0A/OA

Error Code Troubleshooting (Diamante Series)

Wall Mounted WYT-19 Diamante Series

Wall Mounted WYT-22 Diamante Ultra Series

Specific Technical Questions (Diamante Series)

Connecting a Diamante Pro/Ultra (WYT-19/WYT-22) to Pioneer Airlink

Integrating Pioneer Airlink with Apple Smart Home

Pioneer Airlink App

Diamante WYT Series Systems (WYT-19, WYT-22)

How do the Cased A-Coils work?

Specific Technical Questions (DYR Series)

Ducted Central Split DYR Series

Error Code E1 / EL 01 (EL01)

Error Code EL 0C (EL0C, ELOC, EL OC)

Error Code P0 (PC00)

Error Code PC 03 (PC03)

LCAC (FYB/CYB/UYB/RYB) Error Code Interpretation

Error Code Troubleshooting (Quantum Series)

Wall Mounted WYS Inverter+/++ Series

Ceiling Mounted CYB Quantum Series

Slim-Duct Ceiling Concealed RYB Quantum Series

Specific Technical Questions (Quantum Series)

Quantum Series Systems (WYS/CYB/RYB/UYB/FYB)

Products

Technical questions and answers for Pioneer split heat pumps and HVAC equipment

Questions and Answers regarding the entire purchasing process, from browsing for your desired equipment, all the way until the order ships out to you.

All articles

Categories

General Technical Questions

Online Shopping

Products