Alliance Heat Pump Error Codes

Since 2006, Alliance heat pumps have been the go-to brand for many residential and commercial clients. Providing quality and durable water heaters till today, Alliance has expanded its reach to all 9 provinces through its registered dealers like Elbik Air Conditioning. We are accredited to Supply, Install, Service and Repair both residential and commercial geyser heat pumps throughout Gauteng.

Like any other functioning equipment, service is very vital for it to continue working optimally. Below is a list of error codes you might face along your alliance heat pump operational lifespan. 

alliance heat pump error codes

Alliance Heat Pump Error codes

For Models ALLWH 3.2kw, 5.0kw & 7.2kw

*Power phase order error / Phase failure

*Communication failure between the main unit and the wired controller.

*Outlet water temperature sensor error.

*Water temperture sensor failure in the water tank.

*Condenser temperature sensor failure.

*Outdoor ambient temperature sensor failure.

*Sensor failure at water pump outlet.

*Exhaust overheat protection

*T8 temperature sensor error.

*Water flow error.

*Leakage of refrigerant.

*Sensor failure at the double-pipe refrigerant pipe.

*System high pressure protection.

*System current protection.

*Tt high pressure protection.

*Condenser  high protection error.

*Protection for the over-high temperature at the outlet of the condesor (T2 ≥ 60)

*Circulation pump not running.

*There is air in the water system.

*Anti-freezing protection.

*Anti-freezing protection

*Indoor and outdoor units unmatched

The history of heat pumps

Early Concepts:

The concept of heat pumps can be traced back to the work of Lord Kelvin (William Thomson) in the mid-19th century. He proposed the idea of using mechanical work to transfer heat from one place to another. However, the practical application of this concept would take some time to develop.

Sadi Carnot:

In 1824, French engineer Sadi Carnot laid the foundation for the thermodynamic principles that underlie heat pumps in his book “Reflections on the Motive Power of Fire.” His work on the Carnot cycle provided the theoretical framework for understanding how heat can be transferred using mechanical work.

Lord Kelvin’s Refrigerator

In 1852, William Thomson, also known as Lord Kelvin, designed the first known heat pump, which he called a “refrigerator.” It was based on his thermodynamic ideas but was not widely adopted at the time.

Development of Refrigeration:

: The late 19th century saw significant advances in refrigeration technology, which is closely related to heat pumps. Inventors like Jacob Perkins, Ferdinand Carré, and Carl von Linde made important contributions to the development of early refrigeration systems, which were essentially heat pumps operating in reverse.

Introduction of Freon:

In the early 20th century, the development of synthetic refrigerants like Freon (chlorofluorocarbon compounds) greatly improved the efficiency and safety of heat pumps and refrigeration systems. This led to the widespread adoption of refrigeration and air conditioning systems in homes and businesses.

Heat Pumps for Space Heating:

Heat pumps designed for space heating started to gain popularity in the mid-20th century. These systems could extract heat from the outdoor air or ground and transfer it inside to warm buildings. The 1940s and 1950s saw significant advances in this technology.

Geothermal Heat Pumps:

In the 1970s, there was a growing interest in more efficient and environmentally friendly heating and cooling systems. This led to the development of geothermal heat pumps, which use the stable temperature of the earth as a heat source or sink. These systems are highly energy-efficient and have gained popularity for both residential and commercial use.

Modern Heat Pump Technology:

In recent decades, heat pump technology has continued to improve, becoming more energy-efficient and environmentally friendly. They are widely used for both heating and cooling in homes and commercial buildings. The use of heat pumps has also extended to other applications, such as water heating and industrial processes.

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