Re: Hitachi Refrigerator R-Z270AUN7KV not cold.
These timer motors run constantly I thought?
The switch seems to be in series with the compressor, so they disable it, run a heater cycle to defrost, and then allow power for the compressor again.
You could check the timer motor's resistance (pin 1-3) to see if it is open-circuit or not. The leads are not soldered to the tabs so maybe a bad connection. Some diagrams show a resistor or fuse "C"? in series with the timer motor.
Sankyo/Hitachi TMDFX05CD1 is a special cycle time, 6min/12hr.
TMDF706CD1 is close, 7 minutes defrost with 8hr cycle (50Hz).
These timer motors run constantly I thought?
The switch seems to be in series with the compressor, so they disable it, run a heater cycle to defrost, and then allow power for the compressor again.
You could check the timer motor's resistance (pin 1-3) to see if it is open-circuit or not. The leads are not soldered to the tabs so maybe a bad connection. Some diagrams show a resistor or fuse "C"? in series with the timer motor.
Sankyo/Hitachi TMDFX05CD1 is a special cycle time, 6min/12hr.
TMDF706CD1 is close, 7 minutes defrost with 8hr cycle (50Hz).
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