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
For Models ALLWH 3.2kw, 5.0kw & 7.2kw
Error code E1
*Power phase order error / Phase failure
Error code E2
*Communication failure between the main unit and the wired controller.
Error code E3
*Outlet water temperature sensor error.
Error code E4
*Water temperture sensor failure in the water tank.
Error code E5
*Condenser temperature sensor failure.
Error code E6
*Outdoor ambient temperature sensor failure.
Error code E7
*Sensor failure at water pump outlet.
Error code E8
*Exhaust overheat protection
Error code E9
*T8 temperature sensor error.
*Water flow error.
Error code Ed
*Leakage of refrigerant.
*Sensor failure at the double-pipe refrigerant pipe.
Error code P1
*System high pressure protection.
Error code P2
*System current protection.
Error code P4
*Tt high pressure protection.
Error code P5
*Condenser high protection error.
Error code P8
*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.
Error code P9
*Anti-freezing protection.
Error code Pb
*Anti-freezing protection
Error code HO
*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.