Diagnostics manual for multiple models of GE refrigerators: • GSS & PSS23/25/27/29 Series (#31-9072) • GSS20/22/25 Series (#31-9071) • ESS & HSS22/25 Series (#31-9071) • SSS25 Series (#31-9071) • ETS/GTS/HTS/PTS/STS22 Series (#31-9077) • PTS25 Series (#31-9077) • PDS & GBS20/22P Series (#31-9112) • PSH23S & PSH25S Series (#31-9090) • PSH23P/PSH25P/PSH27P/PSH30P Series (#31-9118) • ZIS360/420/480NM Series (#31-9091) • ZIC360N Series (#31-9079) • ZIS360/420/480NR Series (#31-9117)