I moved into a home with a Harman XXV last year. This is our first winter using it, but its been there since winter of 2005. (Just FYI, we had the ESP replaced before this heating season since it was continually registering an error. Besides that, i lubricated the auger feed chain cause it was catching ever so slightly on the sprocket and "clunking" when the tooth slipped into the chain. No other issues.)
Here is a timeline of the problem:
Monday night, around 9 PM: I fill the hopper and go upstairs to bed. Sometime before Tuesday morning, the stove shuts off. A nearly full hopper indicates it didn't run that long after filling.
Tuesday afternoon around 4 i clean the stove (it had been 6 days since the last cleaning) and restart it. It runs fine overnight, and then stops within 15 minutes of me filling the hopper on Wednesday morning. I leave it off for the day.
Wednesday afternoon around 4 I turn it back on (hopper remains full from yesterday) and it shuts off again Thursday morning (today) about 15 minutes after I fill the hopper.
SO...it seems to run just fine for about 12-14 hours, and then shuts off about 15 minutes after I fill the hopper.
I checked the hopper lid, burn pot access panel, and door gasket. All three are tight/intact. I made sure the hopper lid was closed tight after the initial occurrence, and it still happened the next time so thats not it. I thought perhaps an extra windy day was making it shut down, but it's getting so repeatable that I'm not sure thats it.
I get no blinking status light, so thats not helpful. And it always fires up normally after i restart it.
Could a partially blocked flue be the problem? I was planning to clean it after this heating season. I did a full cleaning (except for the flue), including pulling the combustion blower, after approximately 1-ton of pellets were burned. The combustion blower seemed pretty clean. The previous owner told me he cleaned the flue once per year, but its possible its now gone two years without cleaning, depending on when in the year he would typically clean it, and when we closed on the house.
I don't have a magnehelic gauge, or amp meter, but does it sound like a low draft voltage problem? Seems odd that it would occur now, after burning almost 2 tons of pellets.
Thanks in advance for any thoughts you can provide.
Here is a timeline of the problem:
Monday night, around 9 PM: I fill the hopper and go upstairs to bed. Sometime before Tuesday morning, the stove shuts off. A nearly full hopper indicates it didn't run that long after filling.
Tuesday afternoon around 4 i clean the stove (it had been 6 days since the last cleaning) and restart it. It runs fine overnight, and then stops within 15 minutes of me filling the hopper on Wednesday morning. I leave it off for the day.
Wednesday afternoon around 4 I turn it back on (hopper remains full from yesterday) and it shuts off again Thursday morning (today) about 15 minutes after I fill the hopper.
SO...it seems to run just fine for about 12-14 hours, and then shuts off about 15 minutes after I fill the hopper.
I checked the hopper lid, burn pot access panel, and door gasket. All three are tight/intact. I made sure the hopper lid was closed tight after the initial occurrence, and it still happened the next time so thats not it. I thought perhaps an extra windy day was making it shut down, but it's getting so repeatable that I'm not sure thats it.
I get no blinking status light, so thats not helpful. And it always fires up normally after i restart it.
Could a partially blocked flue be the problem? I was planning to clean it after this heating season. I did a full cleaning (except for the flue), including pulling the combustion blower, after approximately 1-ton of pellets were burned. The combustion blower seemed pretty clean. The previous owner told me he cleaned the flue once per year, but its possible its now gone two years without cleaning, depending on when in the year he would typically clean it, and when we closed on the house.
I don't have a magnehelic gauge, or amp meter, but does it sound like a low draft voltage problem? Seems odd that it would occur now, after burning almost 2 tons of pellets.
Thanks in advance for any thoughts you can provide.