Heat Controller, Inc.

VMH Series

Service Manual

9. Troubleshooting

9.1 Indoor Mini-Split error code explanations:

Indoor Error

LED STATUS

Corresponding

Code

Outdoor Error code

 

 

 

 

E0

Indoor EEPROM malfunction

——

 

 

 

E1

Indoor/ outdoor unit communication error

——

 

 

 

E2

Zero-crossing signal error

——

 

 

 

E3

Indoor fan speed has been out of control

——

 

 

 

E5

Open circuit or short circuit of outdoor temperature sensor or outdoor

E0,E1,E2,

EEPROM malfunction

E3,E4,E6

 

 

 

 

E6

Open circuit or short circuit of T1 or T2 temperature sensor

——

 

 

 

P0

IPM module protection or IGBT over-strong current protection

P4

 

 

 

P1

Voltage protection

E5

 

 

 

P2

Temperature protection of compressor top

P0,P1,P2

 

 

 

P3

Outdoor temp. too low protection(Optional for some models)

——

 

 

 

P4

Inverter compressor drive protection

E7, P7

 

 

 

P5

Mode conflict

——

 

 

 

Indoor Ceiling Cassette error codes:

Operation

Timer

De-frost

Alarm

 

 

 

 

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

 

 

 

 

X

X

X

X

 

 

 

X

 

 

 

 

LED STATUS

Open or short circuit of T1 temperature sensor

Open or short circuit of T2 temperature sensor

Indoor / outdoor units communication error

Full-water malfunction

Indoor EEPROM malfunction

IPM module protection

Open or short circuit of T3 or T4 temperature sensor

Voltage protection

Temperature protection of compressor top.

Mode conflict

Inverter compressor drive protection

flash at 2.5Hz, light, X extinguished.

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Heat Controller A-VMH27TC-1, A-VMH36QC-1 Indoor Mini-Split error code explanations, Indoor Ceiling Cassette error codes

A-VMH18DC-1, A-VMH36QC-1, A-VMH27TC-1 specifications

The Heat Controller A-VMH series, consisting of models A-VMH27TC-1, A-VMH36QC-1, and A-VMH18DC-1, represents a sophisticated range of advanced heating and cooling systems designed for residential and commercial applications. These units are engineered to provide efficient climate control, ensuring optimal comfort throughout the year.

One of the standout features of the A-VMH series is its energy efficiency. With advanced inverter technology, these units adjust their power consumption based on the heating or cooling demand, ensuring minimal energy wastage. This not only contributes to lower energy bills but also reduces the carbon footprint, making these systems an environmentally friendly choice.

Each model in the A-VMH series comes equipped with a multi-stage filtration system designed to improve indoor air quality. The filters capture dust, allergens, and other particulate matter, ensuring that the air circulated through the living spaces is clean and fresh. This is particularly beneficial for households with allergy sufferers or respiratory issues.

The A-VMH27TC-1 model stands out for its compact design, making it ideal for smaller spaces without compromising on performance. It offers a cooling capacity of 27,000 BTU and is perfect for apartments or cozy living areas. The A-VMH36QC-1, on the other hand, provides a robust 36,000 BTU cooling capacity, making it suitable for larger rooms or commercial spaces. Its advanced heat pump technology allows for efficient heating even in colder climates. Lastly, the A-VMH18DC-1 model balances functionality and space-saving design, providing 18,000 BTUs for medium-sized areas.

All models are equipped with smart connectivity options, allowing users to control the temperature settings, adjust modes, and monitor energy consumption through mobile apps or smart home systems. This modern convenience provides users with the flexibility to maintain comfort according to their schedules and preferences.

Durability is also a hallmark of the A-VMH series. Each unit is built with high-quality materials and components, ensuring longevity and reliable performance. Moreover, the whisper-quiet operation of these units enhances the overall comfort, allowing users to enjoy their spaces without disruptive noise.

In summary, the Heat Controller A-VMH27TC-1, A-VMH36QC-1, and A-VMH18DC-1 are ideal choices for anyone seeking efficient, reliable, and smart climate control solutions. With their combination of energy efficiency, advanced filtration, smart capabilities, and robust design, these units meet the diverse needs of modern living and ensure lasting comfort in any environment.