Harman XXV-TC auger not working

[vanfleetb]

Went to fire up the stove for the first time this season and it won't ignite. No pellets get fed into the burn pot and I don't see the auger turning at all. In the test mode I can turn the room blower on fine. The combustion motor turns on but seems to be making a rattling noise at full rpm. When I push the test button for the auger it doesn't turn and no pellets feed. Any ideas on what to check?

The stove was installed in November 2018 - would the auger/auger motor be under warranty yet?

 

[DAKSY]

Door gasket & hopper gaskets good?

 

[vanfleetb]

Door gasket & hopper gaskets good?

You may be on to something there. I let it go trying to ignite and came back to see the warning door open message. I don't have any cash on hand to test the gasket but will give that a shot tomorrow. I have always needed to push in on the door a little bit to get the latch to engage is that normal?

 

[DAKSY]

Having to push on the door means your gasket is probably sealing adequately, but if you've burned this or two years
& the gasket hasn't compressed, there may be something else going on. Does the gasket feel flexible all around?

 

[rich2500]

Were the pellets cleaned out of the stove in the off season, fines box cleaned out.

 

[Overfireinthehole]

Went to fire up the stove for the first time this season and it won't ignite. No pellets get fed into the burn pot and I don't see the auger turning at all. In the test mode I can turn the room blower on fine. The combustion motor turns on but seems to be making a rattling noise at full rpm. When I push the test button for the auger it doesn't turn and no pellets feed. Any ideas on what to check?

The stove was installed in November 2018 - would the auger/auger motor be under warranty yet?

Are you getting any error codes? Your baskets are probably fine this early in it’s life, and I’ve never seen a door or hopper lid gasket on a Harman that was bad enough to keep it from feeding pellets with a full hopper. Your likely looking a clog somewhere that is preventing your vacuum switch from closing. Have you: cleaned the fines box, blown out the vacuum line, cleaned exhaust blower, cleaned the venting, cleaned under the burn pot in the igniter chamber, cleaned everything else because it’s a $4k stove that needs maintenance to run well and last a long time? Might as well pull the ESP and wipe it down while your doing everything else. If after all of that, the stove won’t run the auger with a hopper of fresh pellets and the lid and front door shut, then you are looking at possibly a power surge frying something in the board if it was plugged in all summer, or possibly a seized auger motor. The wArranty on electric parts for Harman is 2 years. Good luck!

 

[vanfleetb]

Update. I have everything a good cleaning on the stove. The fines box was pretty full (I honestly didn't know that was a thing until this thread). I also cleaned the ESP, and blew out the vacuum line for the pressure switch. The stove has been making a loud noise at startup that I have now isolated in cleaning to the combustion blower. When spinning it makes a kind of grinding noise so I'm guessing it's failing?

After the cleaning the stove still won't feed any pellets. I can see in the diagnostics that the feed motor is on but it doesn't feed any pellets. I am going to have the dealer come out, but if anyone has any other ideas in the meantime I will give them a try.

Thanks all

 

[vanfleetb]

Update. I have everything a good cleaning on the stove. The fines box was pretty full (I honestly didn't know that was a thing until this thread). I also cleaned the ESP, and blew out the vacuum line for the pressure switch. The stove has been making a loud noise at startup that I have now isolated in cleaning to the combustion blower. When spinning it makes a kind of grinding noise so I'm guessing it's failing?

After the cleaning the stove still won't feed any pellets. I can see in the diagnostics that the feed motor is on but it doesn't feed any pellets. I am going to have the dealer come out, but if anyone has any other ideas in the meantime I will give them a try.

Thanks all

I forgot to add I couldn't figure out how to get the combustion blower off to look at it. There are two thumb screws that I removed but the fan still wouldn't come out. Any trick to getting it out so I can see if cleaning it helps?

 

[DAKSY]

Check to make sure the bolt securing the auger motor to the auger is tight.
If the motor is turning & the pellets aren't feeding, that might be the reason.
It's not easy to get at, but with a 7/16" or 11mm socket you should be able to
tighten it. Look to see where the flat is on the auger shaft & align that with the end of the bolt.
That fastener on my P61A will loosen up every couple of years...

 

[vanfleetb]

Had the dealer out to take a look - the combustion motor is failing and will need to be replaced. However, the reason the stove wouldn't run was birds had packed the pipe completely solid with a nest. Going to be replacing the cap with one that has a screen to keep them out in the future.