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Honeywell zone valve failing?
I have a Laars Endurance propane boiler. Lately I have noticed two things. One, the unit gets up to temp at 190 pretty quickly and shuts down. Two, when the tstat is calling for heat, my hydro air handler will start blowing air but it could be 10-20 minutes before hot air starts coming out. I feel the return pipe and it is ice cold.
I noticed the Honeywell zone valve is buzzing (V8043G). Also, my second circulator pump on the return pipe is not running which I believe is signaled by the zone valve? Please see the youtube link. I am thinking either the zone valve itself is bad or just the motor. I am hoping just the motor because it is tight quarters to sweat a new valve. Please let me know your thoughts. Thanks!