What tests do you believe are the most overlook when dealing with gas inserts?

[ashtree]

Over the last couple months learning the various tests:T-pile, T-couple, Valve ohms, Valve epu, Gas pressure

input/manifold, switch continuity, etc... its been pretty fun and initially loved working on pellet systems but gas has to be

the most interesting and rewarding. So when I go out into homes I record all the above information for later use and

measurements against future years/predictive maintenance. I have been devouring manuals/schematics/manufacuer

troubleshooting guides asking tech as many questions as possible trying to find ways I can better identify component

failures, parameters of operation, tricks and tips etc.. I was just wondering what tests that overlooked and valuable.

Appreciate the feedback.

[phfpservice]

I'm going to say C.O detection & gas valve shutdown tests.

[ECtofix]

I'm going to say C.O detection & gas valve shutdown tests.

Gas valve shut down tests...YES! Often overlooked on commercial kitchen equipment too. I've across many stuck pilot safety valves on gas ovens.

[hearthman]

gas valve safety shutdown
safety devices
combustion analysis
ambient CO
test glass seal patency
combustible gas sniffer
inlet gas pressure under full load
switch leg resistance
switch leg load test
pilot generator load test
homeowner competency in operating it

Not a test but inspecting the installation for clearances, the vent termination for damage and proper clearances is one and confirming correct fuel set up is another (NG vs. LP)