MRCOOL Electronic Control Box Subassembly for DIY-12-HP-C-115B-OEM Part 17222000035476

MRCOOL Electronic Control Box Subassembly for DIY-12-HP-C-115B Condenser

Restore the electrical control functions of your MRCOOL® DIY ductless mini split heat pump with the MRCOOL Electronic Control Box Subassembly, Part #17222000035476.

Designed specifically for the MRCOOL DIY-12-HP-C-115B 12,000 BTU 115V outdoor heat pump condenser, this genuine MRCOOL OEM replacement assembly is intended to replace a damaged or malfunctioning factory-installed electronic control component.

The electronic control box plays an essential role in managing the outdoor condenser’s electrical operations, including compressor control, outdoor fan operation, system communication, and heating and cooling functions.

Replacing a confirmed defective control box with the correct replacement assembly may help restore dependable system operation without requiring replacement of the entire outdoor condenser.

Key Product Features

• Genuine MRCOOL OEM Replacement: Part number 17222000035476, identified for the DIY-12-HP-C-115B outdoor condenser.
• Model-Specific Compatibility: Designed for the MRCOOL DIY-12-HP-C-115B 12,000 BTU ductless heat pump.
• 115V System Application: Intended for the specified MRCOOL 115V outdoor condenser.
• Electronic Control Assembly: Replaces the designated factory-installed electronic control box subassembly.
• Condenser Operation: Supports important compressor, outdoor fan, and electrical control functions.
• System Communication: Helps coordinate operating commands between compatible heat pump components.
• Replacement Repair Solution: Allows replacement of a failed electronic control assembly without automatically replacing the complete outdoor unit.

Important Model Compatibility Warning

PLEASE VERIFY YOUR COMPLETE MODEL NUMBER BEFORE ORDERING.

This electronic control box subassembly is intended for:

COMPATIBLE MODEL: MRCOOL DIY-12-HP-C-115B

SYSTEM CAPACITY: 12,000 BTU (1 Ton)

ELECTRICAL SYSTEM: 115V

This replacement part is not confirmed compatible with other MRCOOL DIY condenser models, different equipment generations, or units with different model-number suffixes.

For example, the DIY-12-HP-C-115B and DIY-12-HP-C-115C25 have different listed replacement part numbers. Do not assume these control assemblies are interchangeable.

MRCOOL control boxes may differ in electronic components, wiring connections, circuit board configurations, and control programming.

Always verify the full equipment model and replacement part number before purchasing.

Product Specifications

Specification	Details
Brand	MRCOOL®
Product Name	Electronic Control Box Subassembly
MRCOOL Part Number	17222000035476
Compatible Condenser	DIY-12-HP-C-115B
System Capacity	12,000 BTU / 1 Ton
System Voltage	115V
Equipment Type	Ductless Mini Split Heat Pump
Part Category	Outdoor Unit Electronics
Part Type	Electronic Control Box Assembly
Installation Location	Outdoor Condenser
Application	Replacement Electrical Control Component

What’s Included?

(1) MRCOOL Electronic Control Box Subassembly — Part #17222000035476

Additional accessories, wiring, or installation materials are not confirmed as included unless specifically identified in the product packaging.

Also Known As

Customers and HVAC technicians may search for this replacement component using several names:

• MRCOOL Control Board Sub-Assembly
• MRCOOL Outdoor Control Board
• MRCOOL Condenser Control Board
• MRCOOL Outdoor PCB
• MRCOOL Main Control Board
• MRCOOL Outdoor Circuit Board
• MRCOOL Electronic Control Module
• MRCOOL DIY 12K Control Box
• MRCOOL 115V Heat Pump Control Board

These are common search terms and do not establish compatibility with other models.

Signs Your Condenser May Have a Control Board Problem

A malfunctioning electronic control assembly may contribute to problems such as:

• Outdoor condenser failing to start
• Intermittent heating or cooling operation
• Communication-related system errors
• Compressor or outdoor fan control problems
• Electrical control faults
• Outdoor unit failing to respond correctly to operating commands

Important: These symptoms do not necessarily indicate a defective control box. Similar problems may result from wiring faults, power supply issues, sensors, or other components.

A qualified HVAC technician should diagnose the system before ordering a replacement control assembly.

Before Ordering Your Replacement Part

Please complete the following steps to help avoid ordering an incorrect electrical component:

1. Locate the equipment identification label on your outdoor condenser.
2. Confirm that the complete model number is DIY-12-HP-C-115B.
3. Verify that replacement part number 17222000035476 matches the required component.
4. Have a qualified HVAC technician confirm that the original control assembly requires replacement.
5. Contact MRCOOL DIRECT before purchasing if you need assistance identifying the correct replacement part.

Professional Installation Recommended

Electronic control box replacement involves potentially hazardous electrical voltage and sensitive HVAC control electronics.

Installation and electrical diagnosis should be performed by a qualified HVAC technician familiar with inverter-driven mini split heat pump systems.

Always follow the manufacturer’s service procedures and applicable electrical safety requirements.

Electrical components may retain hazardous stored energy after the equipment has been disconnected from power.

Replacing the electronic control assembly without diagnosing the original equipment failure may not resolve the problem.

Important Product Image Notice

Product images may be representative and are provided for illustrative purposes.

Actual electronic control box configuration, wiring connections, housing design, or component placement may vary.

Please verify compatibility using your complete condenser model number and the required replacement part number.

Important Parts Return and Refund Policy

ALL PARTS SALES ARE FINAL — NO RETURNS OR REFUNDS.

Electrical and electronic replacement components are non-returnable.

Please verify your equipment model and replacement part number before placing your order.

If you are unsure whether this electronic control box is correct for your MRCOOL system, contact MRCOOL DIRECT before purchasing.

Why Buy from MRCOOL DIRECT?

MRCOOL DIRECT helps homeowners and HVAC professionals locate replacement parts and accessories for their MRCOOL heating and cooling equipment.

• MRCOOL replacement parts and components
• Assistance identifying compatible equipment
• Detailed model and part-number information
• Customer support before ordering
• Convenient online ordering

Order the MRCOOL Electronic Control Box Subassembly, Part #17222000035476, for your compatible DIY-12-HP-C-115B condenser.

MRCOOL DIRECT — For a Cooler Tomorrow.