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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

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

How is power received into the units?

What is the life expectancy of the air conditioner system?

What does “multi-zone” mean?

How do I use my Pioneer Rewards Points when shopping?

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

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

Energy Star Tax Credit / IRS Information FAQ

Do you offer any discounts?

About Authorization Charges

How do I make a return?

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

How Can I Obtain Spare Parts?

Can I Order Different Lineset Lengths?

Cooling Only Systems

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

Do these Split-Type systems function as dehumidifiers?

Which units are rated Energy Star?

Do you Offer Pre-Charged Linesets?

Features

Online Shopping

Error Code PC 03 (PC03)

Error Code E1 / EL 01 (EL01)

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

Error Code P0 (PC00)

How to Check the Resistance of a Pioneer Temperature Sensor

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

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

Error Code FY

Error Code E0

Indoor Unit Displaying 0A/OA

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

Pioneer Error Code Troubleshooting

What is the Telephone Number to Receive Tech Support?

How Can I Access Manuals and Important Technical Documents?

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

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

The Indoor Unit Does Not Turn On

Difference Between 120V and 240V Systems

Electrical Related General Queries

Pioneer Lineset Diameter Reference Guide

What type of oil is used with the unit?

How to Locate a Pioneer Model Number or Serial Number

How to Apply Pioneer Flare Leak Guard

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?

Does the Fan Ever Shut Off in Cooling Mode?

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

What Does It Take to Install a Mini Split?

HVAC Related General Queries

My Pioneer Wall-Mounted Mini Split is Leaking Water

Plumbing and Drainage Queries

General Technical Questions

How do I switch between °F and °C on the RG10 remote?

WYS Inside Unit Disassembly

WYS Outside Unit Disassembly

Why is the Airflow Weak on My Unit?

Wall Mounted WYS Inverter+/++ Series

How to Display the Current Indoor Temperature on a Diamante Pro System

Connecting a Diamante Pro WYT-19 to Pioneer Airlink

The Diamante Remote is missing the Heat mode function

How to Manually Defrost a Diamante Series System

WYT-19 Inside Unit Disassembly

WYT-19 Outside Unit Disassembly

Wall Mounted WYT-19 Diamante Series

My indoor unit came without filters. Help!

The Diamante remote is missing the Heat mode function

How to Display the Current Indoor Temperature on a Diamante Ultra System

Connecting a Diamante Ultra WYT-22 to Pioneer Airlink

WYT-22 Inside Unit Disassembly

WYT-22 Outside Unit Disassembly

Wall Mounted WYT-22 Diamante Ultra Series

Wiring the Pioneer CYB Cassette Panel to the Air Handler

Ceiling Mounted CYB Quantum Series

Supplemental Installation Instructions for RYB/RB Models

Adjusting Static Pressure Setting for RYB/RB Models

Slim-Duct Ceiling Concealed RYB Quantum Series

How do the Cased A-Coils work?

Ducted Central Split DYR Series

Specific Technical Questions

Integrating Pioneer Airlink with Apple Smart Home

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

Pioneer Airlink

How long is the warranty?

Under what conditions am I covered under warranty?

Warranty

Free Shipping

Shipping Details

Shipping & Delivery

RETURNING AN ITEM

STARTING YOUR RETURN

WHAT TO EXPECT

RETURN FEES

RETURN POLICY

UNDELIVERABLE OR REFUSED SHIPMENTS

REFUND ELIGIBILITY

Returns and Refunds

Who is permitted to install the A/C?

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

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

What size torque wrench is needed?

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?

Can the line set be angled upward?

Wire-related questions (Power whip, comms wire)

Installation

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

Can the unit be operated without a remote control?

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

What is the weight and dimensions of the indoor unit?

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

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

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

Indoor Unit

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

Is your Pioneer mini split throwing an error code? This database can be used to decode the error and contains troubleshooting steps and flowcharts in order to solve the problem. Just make sure the error diagnostic matches your system model number.

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

Specific queries and guides categorized by individual Pioneer equipment series

Reference material and guides for installing and working with the Pioneer Airlink app

All articles

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