Pentair Transformer Assembly | LX20 / LX30 / LX36 / LX80 | XFM1BK Automated Chemical Feeders confirm your filter model number

confirm your filter model number on the label affixed to the tank — the TR100

see their excellent how-to article here

confirm the part number printed on your existing air flow switch matches 42001-0061S

inspect the surrounding header and heat exchanger connections for signs of scale buildup or corrosion before reassembling

Pentair Transformer Assembly | LX20 / LX30 / LX36 / LX80 | XFM1BK Automated Chemical Feeders confirm your filter model numberThe Pentair XFM1BK Transformer Assembly is the OEM replacement transformer for ComPool LX Series automation control systems, specifically the LX20, LX30, LX36, and LX80 models. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED This transformer operates on mains voltage. Electrical control components must be installed or replaced by a qualified electrician or certified pool technician. Do not attempt to service this component without proper