You ever have one of those jobs where nuisance heating system lockouts drove you crazy?
The issue was with a propane-fired boiler and, of course, the lockouts were happening when we were swamped with no heat calls and frozen pipes! Upon arrival, resetting the boiler’s control produced a smooth light-off and seemingly perfect operation. The gas pressure was a steady 11-inches water column and the combustion analysis was spot-on. The next morning presented the same issue. Gas lines sized properly? Check. Running low on propane? The tank gauge indicated the 250-gallon tank was about a third full.
