Ephrata's gas boilers are mostly modern sealed-system and condensing units on the streets the mains reach — which concentrates the fault map. Fires for seconds, then cuts out is the flame sensor: the burner lit, but the control cannot prove flame, so it shuts down on safety. Fan runs, no flame, lockout is the igniter or gas valve — the sequence never got past step one. Dead on a freezing morning after gurgling is the condensate drain until proven otherwise: exterior condensate runs freeze solid on teen-degree January nights, the trap backs up, and the boiler locks out by morning.
Pressure falling toward zero on the gauge is a different family: a leak on the sealed circuit or a failed expansion tank, with the feed valve masking it by topping up. If the gauge keeps dropping after top-ups, the system is losing water somewhere — say so on the call, because it changes what the tech brings.
And one Ephrata-specific note: if your street only got gas mains in the last decade or two and the boiler never ran quite right afterward, mention the conversion history on the call — venting and gas-supply issues from converted oil-era infrastructure are a known pattern on these blocks.