york roof top D7CG036N07925A

[adsgasservice]

i found on roof top D7CG036N07925A draft moter get power direct from supply,moter run 365 day,someting missing in between ,also after burner run 5-7 minute roll out switch open and after reset itself burner not start again,please some give me idea whats going on

[2sac]

If you don't understand what you're working on then you shouldn't be working on it. The unit is shutting itself off because there are bigger issues with it.

[adsgasservice]

i expecting heat exchanger problem but what missing to stop vent moter,may be draft moter relay.how we find electical diag

[timebuilder]

From what you have stated, I believe you are not qualified to be diagnosing a gas appliance that can put many people at risk.

Do yourself a big favor and call a commercial contractor. Until they arrive, shut off the gas valve on the pipe outside the unit.