GE Refrigerator Error Code SH

SH indicates that the fresh food compartment temperature sensor (thermistor) is shorted. The code appears in the fresh food display position while the freezer display continues to operate normally. A shorted NTC thermistor produces resistance far below any value on the normal temperature-resistance chart, triggering the fault. The refrigerator cannot accurately regulate fresh food compartment temperature until the issue is resolved.

The freezer will likely continue functioning normally, but the fresh food compartment may not maintain proper temperature since the control board has lost accurate sensor feedback. Food safety can be at risk if the fresh food section becomes too warm or cycles improperly. It is best to address the fault promptly and monitor fresh food temperatures closely in the meantime.

If only the thermistor needs replacement, the repair is typically among the less expensive refrigerator fixes, with parts generally ranging from $15 to $50 and labor adding $75 to $150 depending on your area and service provider. If the wiring harness or main control board is involved, costs can increase to a range of $150 to $400 or more. Getting a diagnostic assessment before ordering parts is recommended to avoid unnecessary expenses.

A reset may temporarily clear the SH code from the display, but the fault will return if the underlying problem is not corrected. Because the thermistor is continuously monitored by the control board, a shorted sensor or wiring issue will re-trigger the code as soon as diagnostics resume. A proper repair, including testing and replacing the faulty component, is required for a permanent fix.

Start by disconnecting the fresh food thermistor and measuring its resistance, then compare the reading against the NTC resistance chart for the current temperature. If the resistance is near zero or far below the charted value, the thermistor needs replacement. Also inspect the wiring harness and connector for damage, pinching, corrosion, or loose connections, as these can cause the same shorted-circuit condition.