The Plunge All-In is equipped with error codes designed to protect the chiller in the event there's an obstruction or unsafe environment that could potentially cause damage.
CF – Change Filter / Constricted Flow
- Description: Flow is less than 14 LPM. This is a protective state, to prevent damage to the chiller due to low water flow.
Impact: The chiller will stop cooling. The UI flashes between “CF” and the actual temperature.
How to fix it - "CF" Error Code
OR – Out of Range
- Description: Water temperature reading by Th1°F is out of range.
Impact: The chiller will stop cooling. The UI will flash between “OR” and the actual temperature. This is a protective state to prevent damage to the chiller due to temperatures being out of a safe range.
How to fix it - "OR" Error Code
FF – Flow Fatal
-
Description: No flow detected. Pressure transducer PT1 shows:
- <4 psi (starved at inlet), or
- 27 psi (blocked at outlet).
Impact: The chiller will stop cooling. The UI flashes between “FF” and the actual temperature.
How to fix it - "FF" Error Code
FA – Fan Error
- Description: Fan RPM is too low (<350 RPM) when it should be at least 1000 RPM.
Impact: The chiller will stop cooling. The UI flashes between “FA” and the actual temperature.
How to fix it - "FA" Fan Error Code
CO – Coolant Range
- Description: Coolant temperature (Th2°F) is out of expected range.
Impact: Unit will not cool. The UI flashes between “CO” and the actual temperature.
How to fix it - "CO" Coolant Range Error Code
HE – Hot Electrical Box
- Description: Electrical box is too hot (Th5°F > 150°F).
Impact: The chiller will stop cooling. The UI will flash between “HE” and the actual temperature.
How to fix it - "HE" Hot Electrical Box Error Code
HA – Hanna Error (Commercial Max)
- Description: Error/fault detected on the Hanna auto doser controller.
Impact: Unit will still cool. The UI flashes between “HA” and the actual temperature
How to fix it - "HA" Hanna Alarm Error Code
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