Sh means sensor short and 2 means sensor number 2
I also am repairing an SRR49FD and I get that message. I measured the sensor resistance as about 11,000 ohms, clearly not a short circuit. The enclosure resistance is about 7000 ohms at the same temperature. So what should these sensors show at 75 degrees F??? Does the resistance increase or decrease as the temperature drops??
On this unit the evaporator fans did not run because the door switches N.C. contacts have failed. In addition the defrost heater element has some burned spots, although the resistance is OK.
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