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verify the 24V secondary transformer output and check for a steady green light or specific flash patterns to confirm correct installation and communication with the thermostat
1000 motor may be seized or the internal windings may have failed
This specific part number is primarily listed for Vitodens 200-W B2HA and B2HB series
this is a dedicated ECM fan motor
MARS 19164 Potential Relay 318518-761 verify the 24V secondary transformerThe MARS 19164 is a standard service HVAC potential relay designed specifically for single phase compressor motors requiring precise start capacitor disconnection. As a professional grade Model 164 relay, it features a pick up voltage range of 245 275V and a drop out voltage of 60 140V, ensuring reliable starting torque in high demand refrigeration and air conditioning applications. Rated for 420V hold voltage and 35 amp contact current, this