Harman Stove PP38+ low heat
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Bioburner
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The probe is stainless. I had a probe issue a couple weeks ago but I had high dirty fire as the probe was thinking it needed more fuel. I changed pellet brand. Cleaned it up and everything went back to normal. Something is saying the stove is at temp and not needing to fire and keeping it at idle. Bad temperature control pot?
OK here is the latest I took the probe out and cleaned it and the stove is still not producing heat (it stays lit but flame isn't big enough to cause the blower to produce heat). I am guessing the next thing would be to change the feed potentiometer (I know people have said it's tricky to do my brother in law is very good with something like this) is there anything I need to tell him? Thanks everyone.
Bioburner
Moderator
If your replacing the pots, like changing headlights on a car, change them all. The time and expense is minimal once the board is out and why guess after that you should have done the others too if it does not remedy the problem.
Bioburner
Moderator
If your replacing the pots, like changing headlights on a car, change them all. The time and expense is minimal once the board is out and why guess after that you should have done the others too if it does not remedy the problem.
Bioburner
Moderator
If your replacing the pots, like changing headlights on a car, change them all. The time and expense is minimal once the board is out and why guess after that you should have done the others too if it does not remedy the problem.
I know I can't do this I will have to ask someone. Is there a part number for the pots I need (can they be bought off the shelf or do I have to order them)? Is there a certain solder needed (as you can guess I am over my head) any other suggestions would be appreciated.
Bioburner
Moderator
There is a seller on Ebay and has details on how to determine correct pots. I think they go for around $10 for 2 or 3 delivered. Search Harman and several should pop up. Also is a site that will replace the pots and test for I think $40 plus shipping. I have two Harmans that are getting the pots replaced in the spring. One harman turns itself on, the others fan control blinks all the lights if turned all the way to the high stop.
Bioburner
Moderator
There is a seller on Ebay and has details on how to determine correct pots. I think they go for around $10 for 2 or 3 delivered. Search Harman and several should pop up. Also is a site that will replace the pots and test for I think $40 plus shipping. I have two Harmans that are getting the pots replaced in the spring. One harman turns itself on, the others fan control blinks all the lights if turned all the way to the high stop.
Here`s the link to the potentiometers on ebay.
http://www.ebay.com/sch/danomyte/m.html?item=120772142958&rt=nc&_trksid=p2047675.l2562
http://www.ebay.com/sch/danomyte/m.html?item=120772142958&rt=nc&_trksid=p2047675.l2562
harman dealer here....those 2 knobber CB's are getting hard to find, so, replacing the pot is a viable repair.....because there is aretrofit kit available for your old p38, but its involved, and somewhat pricey. Some dealers still have the old 2 knob boards in stock as well....the ones who were forward-thinking, that is.....
So are you saying I should get a circuit board now before they are impossible to find?harman dealer here....those 2 knobber CB's are getting hard to find, so, replacing the pot is a viable repair.....because there is aretrofit kit available for your old p38, but its involved, and somewhat pricey. Some dealers still have the old 2 knob boards in stock as well....the ones who were forward-thinking, that is.....
I would have NO idea on how to jump the ESP. The probe was really dirty this morning when I cleaned so I was hoping the cleaning would work but it didn't.
Ok I had the pots replaced turned the stove on and everything worked fine... for about an hour then it went back to not putting out heat (stays lit though). I am thinking of replacing the esp probe (anyone know the best price) any suggestions would help. Thanks
dhall28
Burning Hunk
not an expert on the p38's but sometimes when harman stoves wont feed enough pellets except on start up for a large flame it is because there is a blockage in the feed system or sometimes the slide plate was removed for cleaning and installed upside down, unlikely the slide plate is upside down unless you remove that in your cleanings, most people dont as they dont even know there is feedbox clean out area unless they actually read their manual
I found a guy on ebay that was seeling the pots in CT (I live in NY) so I asked if he would meet me so I drove and picked them up and had my brother in law solder them for me. Does anyone know if there is a temperature sensor for the pp38+ and if so where is it (my stove is a basic model nothing fancy with it). Thanks
The primary temperature sensor is the esp.
There is also a room probe which acts as a thermostat.
I think the next thing I change is th esp probe. Where's the best place to buy them and would like to get it asap? Thanks
Your local Harman dealer might have one just make certain you get one that will work on your particular stove.
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