Polar Dive USA
Polar Dive USA
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Chiller keeps turning on and offUpdated 2 months ago

99% of the time, the fans shutting off is completely normal and a unique part of how our chillers are designed. Please see the below:

Check the Temperature Settings (Elaborated)
The Polar Dive Chillers uses a temperature-controlled fan cycle rather than running the fans continuously. This means the fans will only activate when the system detects that cooling is required based on the setpoint temperature and the chiller’s internal temperature sensor. The fans will activate and oscillate within a five degree range, turning off and on as needed to conserve energy and keep the electricity toll to a minimum (15 cents per full day of activity).

How to Check & Adjust the Temperature Setting

Verify the Setpoint Temperature:
  • The setpoint temperature is the target temperature the chiller is trying to maintain. If it’s set too high (e.g., 60°F instead of 42°F), the system may not require cooling, causing the fans to remain off.
  • Solution: Check the user interface or control panel and ensure the setpoint is correctly programmed for your desired temperature range.
Compare Actual Temperature vs. Setpoint:
  • If the current temperature is already lower than the setpoint, the chiller may not engage cooling cycles, keeping the fans off.
  • Solution: Manually decrease the setpoint slightly and observe if the fans respond. If they turn on, the system is working correctly.
Test: How to See if the Fans Will Engage?
  • Manually lower the setpoint temperature below the current temperature and wait a few minutes.
  • If the fans still don’t turn on, proceed with further diagnostics
Verify the Power Supply
Intermittent or non-functional fans in your Polar Dive Chiller can sometimes be traced back to electrical issues. Fans require a consistent and stable power supply, and any disruption in voltage, loose wiring, or tripped breakers can prevent them from operating correctly.

How to Diagnose & Fix Power Supply Issues:
Step 1: Check for Loose or Disconnected Wiring
  • Over time, vibrations from the chiller’s operation or external factors (such as moving the unit) can cause wiring connections to loosen.
  • Solution:
  • Look for any visibly loose, frayed, or disconnected wires leading to the chiller and make sure the chiller is directly plugged into a wall outlet - NOT an extension chord.
Confirm Voltage and Power Stability
  • Inconsistent or low voltage can cause the fan to run intermittently or fail to start.
  • Solution:
  • Plug the chiller into a wall outlet, test different outlets and ensure they are providing the proper amount of electricity needed to activate the fans
  • Reset your circuit breaker controlling the designated outlet 
  • Unplug unnecessary devices, which in a weak voltage environment, can in rare instances impact performance 
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