or loose terminal connections creating excessive heat at the breaker bus bar

this 40VA transformer provides a stable power supply for thermostats

Spike Connect Interface: Features a secure spike terminal designed for high-voltage lead penetration

you know that hot surface ignitor replacement is a primary fix for "no heat" calls

the 7/8" ODF connections are sized to receive 7/8" OD copper tubing

Johnson Controls P10FC-4 Pressure Control 30067439-890 or loose terminal connections creatingLow Pressure Control, Two Stage, SPDT Contact Action, 3 20 PSIG Range, 8 PSIG Factory Setting Low Stage ( R to Y Cutout ), 12 PSI Factory Setting High Stage ( R Y Cut In ), 2 PSI Low and High Stage Switch Differential, 1 8" Barbed Fitting Pressure Connector, Visible Range Scale