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Compatible with a broad range of International Comfort Products (ICP) brands
What are the electrical ratings for the contacts on this control
When diagnosing a furnace pressure switch error or a failed draft inducer motor
The housing is constructed from rugged plated steel
This is an SPST (Single Pole Single Throw) switch with a Normally Open (NO) contact function that closes on rising pressure
Lennox 59K21 Control Board Refrigerant Compatible with a broad rangeThe Lennox 59K21 Control Board is a fundamental integrated ignition control module designed for high performance residential gas furnaces. As a high reliability "brain" for your heating system, this board manages the critical sequence of operations, including the furnace ignition control, inducer motor timing, and blower transitions. Technical data confirms that the 59K21 is identical to 59K2101, providing a direct OEM HVAC replacement part for
