Controls Configuration & Adjustments...

Troubleshooting Using Displayed Codes

Interpreting Error Codes

The HP7R heat pump microprocessor controller is designed to be self-diagnostic through the display of various fault codes.

Owners & Operators: If you believe you are experiencing a problem with the heater, and feel a need to call the factory for assistance, it will be beneficial to let the factory Service Representative know which code is being displayed. Having this information at hand will permit the Service Representative to work through–with you–any site related issues causing or contributing to the problem. Then, if after working through site-related issues the heater is still not functioning correctly, the Service Representative will offer to set up a service visit. As necessary, please Contact AquaCal Customer Support Group (800- 786-7751).

Dealers and Service Centers: For troubleshooting use, listed below are all possible fault messages output by the microprocessor, what the codes mean, and possible causes with solutions for the indicated problem. Please contact AquaCal Technical Support Group, as necessary (800-786-7751).

WARNING !

Failure to heed the following may result in permanent injury or death.

Heat pumps contain no owner or operator repairable components. Repairs must not be attempted by untrained and/or unqualified individuals. If service is deemed necessary, contact installing dealer or AquaCal Customer Support at (800) 786-7751.

Message

Error Description

Possible Cause

 

 

 

[dPO]

Defrost Sensor Open

Cut or loose sensor wiring

 

 

 

[PO]

W ater Temperature Sensor

Cut or loose sensor wiring

Open

 

 

[dPC]

Defrost Sensor Shorted

Short circuit in defrost sensor wiring or defective sensor.

 

 

 

[PC]

W ater Temperature Sensor

Short circuit in water temperature sensor or defective sensor.

Shorted

 

 

[LP]

Refrigerant System Low

System refrigerant charge low, defective low pressure switch, clogged

Pressure Switch Open

evaporator coil, or defective wiring.

 

[HP]

Refrigerant System High

Low water flow, defective high pressure switch, or defective wiring.

Pressure Switch Open

 

 

 

5 High Pressure Faults W ithin

 

[HP5]

One (1) Call for Heating or

See causes for [HP]

 

Cooling (Lock Out Condition)

 

[LP5]

5 Low Pressure Faults W ithin

See causes for [LP]

One (1) Call for Heating or

 

Cooling (Lock Out Condition)

 

 

Over Temperature Alarm<

Defective compressor contactor, defective controller, or defective

[OTA]

Temperature over 110oF (Unit

 

Locked)

water temperature sensor.

 

 

[FLO]

Low or No W ater Flow

Circulating pump off, water filter dirty, isolation valves set improperly,

Detected

or defective pressure switch.

 

 

 

Normal function in lower air temperatures. Fan continues to run and

[FS]

Heater in Defrost Mode

compressor is off. Compressor will restart when air-coil temperature

 

(HEAT-ONLY UNITS)

reaches 38oF or above.

[CSE]

Control System Error

Controller may need to be reset. Disconnect then reconnect power to

controller. If error continues, replace control board, display board, or

 

 

both.

[CEr]

Communication Fault

Loss of communication between main board and display board. Reset

controller or replace communication cable.

 

 

51

Page 51
Image 51
Aquacal 110, 101, 121, 156, 135, 111 owner manual Troubleshooting Using Displayed Codes, Interpreting Error Codes

121, 111, 101, 135, 110 specifications

Aquacal is a well-known brand in the field of heating and cooling solutions, particularly recognized for its advanced heat pump technology dedicated to pool heating. The Aquacal models 156, 110, 135, and 101,111, offer a range of features and technologies tailored to meet diverse customer needs, ensuring that pools remain at a comfortable temperature regardless of the weather outside.

One of the standout features of Aquacal heat pumps is their energy efficiency. These models are designed to operate using renewable energy, extracting heat from the air, which significantly reduces operational costs compared to traditional gas heaters. The Environmental Protection Agency (EPA) endorses heat pumps, making them an eco-friendly choice for pool heating.

Equipped with advanced digital controls, Aquacal units allow users to easily monitor and adjust settings for optimal performance. The user-friendly interface includes features such as programmable timers, which enable stakeholders to set heating schedules according to their usage patterns, providing both convenience and energy savings. The models are also designed with quiet operation in mind, featuring components that minimize noise, allowing for a peaceful poolside experience.

The Aquacal 156, 110, 135, and 101,111 models are built to withstand various weather conditions, featuring durable casings and components that resist corrosion. This durability is crucial for outdoor installations, ensuring that the units have a long service life with minimal maintenance.

Another key characteristic of these heat pumps is their capacity to function effectively in a wide range of temperatures. This adaptability allows them to provide consistent heating performance even during cooler weather conditions, ensuring that users can enjoy their pools year-round.

Furthermore, Aquacal heat pumps are designed for ease of installation, often fitting into existing plumbing setups without significant modifications. This feature makes them an attractive option for both new pool installations and retrofitting existing systems.

In conclusion, the Aquacal 156, 110, 135, and 101,111 models represent a versatile and energy-efficient choice for pool heating. With their advanced technologies, user-friendly features, and durable construction, they cater to a variety of preferences, making them a popular selection among pool owners looking to maintain comfortable swimming conditions while remaining mindful of energy consumption and costs.