Which boiler models use this 3-way valve

or tripping the circuit breaker

How do I verify if this relay is the cause of a system failure

The diagnostic LED provides immediate field feedback

Friedrich Air Conditioning 69700858 Motor 320819-301 Which boiler models use thisThe Friedrich Air Conditioning 69700858 Motor is a high efficiency OEM replacement fan motor specifically engineered for select Friedrich HVAC systems and variable refrigerant pack (VRP) units. This brushless DC motor (BLDC) operates within a 200 370VDC voltage range, delivering a precise 60W output at an optimized 690 RPM. Designed for demanding applications such as the FSHSR18A3A and FSHSR24A3A heat pump models, this motor ensures consistent airflow