What to do if Brooks Polycold MaxCool 4000H has a power failure and the Fault LED is amber?
- PPhyllis PhillipsAug 3, 2025
If your Brooks Chiller experiences a power failure and the Fault LED is amber, the control voltage may be outside acceptable limits. Verify the transformer tap settings to ensure they match your supply voltage. Also, check the supply voltage for deviations beyond the allowable voltage range for the current tap setting.