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Aquacal Appliances
Aquacal Appliances

Aquacal Appliance Error Codes

Since 1981, it has been their sincere belief that providing you with quality products and standing behind those products is their only path to success. They are the leader in their industry and have more pool and spa heat pumps installed than any of their competitors.


Pool Heaters Error Codes

CODE: FLO 
PROBLEM: Sensors are detecting low water levels in the heat pump 
FIX: 
• Check that the pool pump is receiving enough water 
• Ensure that your pool pump is sending water to the heat pump 
• For variable speed pool pumps, try putting the pump speed up a notch 
• Check for any clogs or backups causing poor water circulation 

CODE: CEr 
PROBLEM: A communication cable may be damaged or disconnected 
FIX: 
• Have a professional pool heat pump repair tech inspect your pump and circuit boards to resolve the issue 
• Consider over-the-phone, DIY pool heater troubleshooting 

CODE: CSE 
PROBLEM: This code indicates an error within the control system 
FIX: Turn off power at the breaker, wait a few minutes, then turn the power back on 
 
CODE: dPC | dPO 
PROBLEM: The defrost sensor may be disconnected or shorted 
FIX: 
• Have a professional pool heat pump repair technician inspect the sensor and replace it if defective 
• Perform the repair with professional guidance from a pool heater troubleshooting service 
 
CODE: PC | PO 
PROBLEM: The water sensor may be disconnected or shorted 
FIX: 
• Have a professional pool heat pump repair technician inspect the sensor and replace it if defective 
• Perform the repair with professional guidance from a pool heater troubleshooting service 
 
CODE: HP 
PROBLEM: High-pressure sensor in the refrigerant system may be open 
FIX: 
• Try FLO error code troubleshooting steps 
• Seek professional assistance to recalibrate your water pressure switch 
• Hire a pool heat pump repair technician to resolve the issue 
 
CODE: HPS 
PROBLEM: Heat pump is locked due to 5 consecutive high-pressure faults in one cycle 
FIX: 
• Power off the heat pump to clear the error code 
• Try HP error code troubleshooting steps 
 
CODE: LP 
PROBLEM: Low-pressure sensor in the refrigerant system may be open 
FIX: Try HP error code troubleshooting steps 
 
CODE: LPS 
PROBLEM: Heat pump is locked due to 5 consecutive low-pressure faults in one cycle 
FIX: 
• Power off the heat pump to clear the error code 
• See LP error code troubleshooting 

CODE: OtA 
PROBLEM: Temperature of incoming water exceeds 110 degrees; heat pump locked 
FIX: 
• Measure the temperature of your water with a thermometer and see if it matches the pool heater reading. This tests for a faulty temperature sensor 
• Check that there isn’t another heat source warming up your water 
• Seek pool heater troubleshooting help



Aquacal Appliance Error Codes

Aquacal appliance fault codes

Aquacal appliance diagnostic codes

Aquacal appliance error symbols

Aquacal appliance common faults


Product Reviews:

Great product, works well, easy to turn on and off and set the heat level.
Great product, works well, easy to turn on and off and set the heat level.
Published: December 15, 2016
Jelena F
Source: amazon.com

This heat pump works great!! It heats about one (1) degree per hour, it doe
This heat pump works great!! It heats about one (1) degree per hour, it does consumes about 7.5 Kwh in case you're wondering, I wish it would be a little more energy efficient, but all the other features and the way it heats up the pool is great. I have a 12,000 gal pool so it heats it up relatively fast. I would definitely recommend this heat pump, or any AquaCal heat pump.
Published: September 27, 2015
J. Gutierrez
Source: amazon.com

Have an AquaCal for 25years and it is still working! It is a great product
Have an AquaCal for 25years and it is still working! It is a great product with awesome support team. They now have a loyal customer!
Published: August 31, 2017
Amazon Customer
Source: amazon.com

I don't know what that one customer wrote--my Sq120 has a pool option
I don't know what that one customer wrote--my Sq120 has a pool option and a spa option. This thing is awesome it heats the spa really quick and hardly makes any noise at all, If I did not feel the water the only way to tell if it is running is to walk over and see if the fan is spinning. I would defiantly purchase again!!
Published: March 1, 2016
fpalazzo
Source: amazon.com

My wife needed our pool heated to enjoy it year round in central Florida. I
My wife needed our pool heated to enjoy it year round in central Florida. I installed this unit Sunday afternoon mid April 2016 and turned it on. No problem at all everything was straight forward. Set temp to 90 as a test with a pool blanket for our 15000 gallon pool. I was pleasantly surprised that the original 72 temp went to 90 in about 36 hrs. I've lowered the temp setting to 80 and enjoying it. This unit is super quite standing next to it. By comparison, my neighbors pool pump is 40 feet away and clearly audible over the SQ 120. Also, had a question and called the customer service number. I got an immediate response and answer to my question on the phone. I'm sold on this product and would recommend it to my friends and neighbors.
Published: April 20, 2016
Carolyn Bagley
Source: amazon.com

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