Pentair Fireman's Switch Fuse 1.25A | Max-E-Therm / MasterTemp Heater | 32850-0099Z Chlorine replace the full set of

replace the full set of 12 O-rings — not just the ones showing visible wear

O-rings at this location are subject to the same age

Pentair Part Number 230010Z Replaces / Supersedes 539639 Part Category Cams Quantity Included Each (1) Pro Tip

✔ Post-workout recovery soaks

Pentair Fireman's Switch Fuse 1.25A | Max-E-Therm / MasterTemp Heater | 32850-0099Z Chlorine replace the full set ofThe Pentair Fireman's Switch Fuse (32850 0099Z) is the OEM replacement 1. 25 amp fuse for the fireman's switch circuit in Pentair Max E Therm and MasterTemp pool and spa heaters. IMPORTANT: HEATER ELECTRICAL COMPONENT PROFESSIONAL SERVICE REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper certification.