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Third Rock
This blower pressure switch monitors pressure in the induced-draft system and confirms that blower operation is creating the proper condition before ignition is allowed to proceed
Weatherproof & Corrosion-Resistant – Built with durable materials to withstand harsh pool conditions
High-Density Polyethylene (HDPE) Wicker: All-weather
Replacing it restores controlled gas flow to the combustion section
Raypak High Limit Switch Replacement, 140°F, Auto Reset | 600893B Spa Filter Cartridges Third RockRaypak 600893B High Limit Switch Replacement 140F Auto Reset If the heater is shutting down on temperature safety and then restarting on its own after cooling, the high limit switch is one of the first protection parts to inspect. A faulty limit can cause nuisance trips, but if it is reacting to a real overheating issue, that root cause still has to be corrected before the heater is considered fixed. This 140F auto reset high limit switch monitors
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