Help with pellet stove

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Lacon

New Member
Nov 10, 2021
8
Boston
Hello, I have a heatilator ps35 pellet stove, went to use it for the first time this year and it turns on but it doesnt feed pellets, no one can service my stove until the end of January which is ridiculous, so I started throwing parts at it.........replaced all 3 snap discs, vacuum switch, hopper switch, tested the motor to the auger and it works, vacuumed and cleaned the entire stove along with the venting, and it still doesnt want to feed pellets. Any suggestions would be greatly appreciated because I'm at the point where I'm just going to have to purchase a new one.
 

Mt Bob

Minister of Fire
Oct 31, 2013
3,631
park county montana
Check the heat level switch for continuity, If you do not have a meter,flip it back and forth a few times.
 

jzm2cc

Minister of Fire
Sep 25, 2014
623
Northern Michigan
Sounds like an issue with the control module. A blown fuse within module would prevent auger feeding, same for the 7 pin driver chip. New modules are approximately $200, cheaper than buying a new stove.

Was unit unplugged during summer season?

Also, does module flash with blue LED for first 10 seconds when power cord is unplugged then plugged in?
 

Lacon

New Member
Nov 10, 2021
8
Boston
Sounds like an issue with the control module. A blown fuse within module would prevent auger feeding, same for the 7 pin driver chip. New modules are approximately $200, cheaper than buying a new stove.

Was unit unplugged during summer season?

Also, does module flash with blue LED for first 10 seconds when power cord is unplugged then plugged in?
Yes it was unplugged during the summer. and when I turn it on theres a blue light that flashes 6 times.......also I just opened the control box and I do see a fuse but it's still good.
 

SidecarFlip

Minister of Fire
Feb 7, 2010
5,273
S.E. Michigan
So, did you do a spring cleaning or just turned it off and let it sit? Sounds to me like either the auger drive motor has dry bearings or the reduction gearbox is dry and probably shot.

When was the last time you oiled the motor bearings or should I say, have you ever oiled them or cleaned on the accumulated filth in the cabinet?
 

Lacon

New Member
Nov 10, 2021
8
Boston
Did you check the little gree pico fuse that's soldered in place? Lower left on the board with the the gold plated connector facing downward.
Lower left of the control unit has a black powdery residue, I'm going to order a control box.

20211111_191454.jpg
 
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Reactions: Mt Bob

Lacon

New Member
Nov 10, 2021
8
Boston
I greatly appreciate everyone's help in here, you all have been very helpful, I will keep everyone posted once I get the control box, thank you! 🍻
 

Lacon

New Member
Nov 10, 2021
8
Boston
So, did you do a spring cleaning or just turned it off and let it sit? Sounds to me like either the auger drive motor has dry bearings or the reduction gearbox is dry and probably shot.

When was the last time you oiled the motor bearings or should I say, have you ever oiled them or cleaned on the accumulated filth in the cabinet?
Every year when I am done using it I clean everything including the vent pipe, it's easy to do because it just goes straight out of the wall.
 

Mt Bob

Minister of Fire
Oct 31, 2013
3,631
park county montana
2 things before putting in new box--
1- inspect complete wiring harness,for a spot that may have shorted out
2- consider adding fuses to your igniter, you should be able to find instructions with the search box above
 

jzm2cc

Minister of Fire
Sep 25, 2014
623
Northern Michigan
I see on your board the small fuse is not green, but silver looking, sorry for the mis-direction there.. Usually when the fuse blows the 7 pin driver chip is also fried, resulting in no auger operation. Replacement parts are available if you know how to remove and solder them back in place.
 

Lacon

New Member
Nov 10, 2021
8
Boston
2 things before putting in new box--
1- inspect complete wiring harness,for a spot that may have shorted out
2- consider adding fuses to your igniter, you should be able to find instructions with the search box above
Will do, thank you
 

Lacon

New Member
Nov 10, 2021
8
Boston
I see on your board the small fuse is not green, but silver looking, sorry for the mis-direction there.. Usually when the fuse blows the 7 pin driver chip is also fried, resulting in no auger operation. Replacement parts are available if you know how to remove and solder them back in place.
All good, cant believe I missed it the first time i took it apart, I already ordered it but will buy the parts and save this one, thanks
 

SidecarFlip

Minister of Fire
Feb 7, 2010
5,273
S.E. Michigan
Those fuses with the tiny wires inside are hard for this old man to see. Have to use a magnifying glass most times...