Amana-Goodman PHWT-A100C Tstat 30067439-890 or a degraded lead wire

or a degraded lead wire that fails to deliver the high-voltage spark

72-Hour Battery Backup: Integrated quartz drive with carryover maintains timekeeping during outages

5 Amp load is exceeded

It should be replaced during any system opening

Amana-Goodman PHWT-A100C Tstat 30067439-890 or a degraded lead wireThe Amana Goodman PHWT A100C is a professional grade non programmable heat pump thermostat designed for 1 Heat 1 Cool configurations. Engineered as the direct replacement for 2246002 and 1246002, this 24V AC digital interface provides reliable performance for PTAC, PTHP, and standard heat pump systems. It features a high visibility backlit display and precise temperature control, maintaining a + 1 degree differential to prevent short cycling and