I have a 30 year old Harman P61 manual light and I've heard conflicting reports as to wether it will shut down or go out to "idle" when its too warm to run.
Harman P61 manual turn off in room mode.
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What happens when it goes above that temperature, does it shut off or idle until it needs more heat. That's the question. I just don't need it shutting off in the middle of the night when the the temp goes up above the set point and can't restart.
Interesting post about non-ignitor P61.. I have P61A with ignitor and temperature probe connected.
with that setup [ROOM AUTO]yes the stove can and will shut down if the room get's above temp it was set for Depending on how long it keeps that temperature.
sometimes for 5 or ten minutes, sometimes much longer depending on how tight or insulated your house is and " holds" the heat.
same stove in room/manual will just back off and just dribble few pellets at a time just to keep the flame alive but will Not shut down.
Your P stove without ignitor would prob react same as mine does in room manual since ignitor is not being used ...
I assume it will just simmer with few pellets dropping in to keep flame alive or else u would have to manually re-light your stove everytime it reached your set temp and i just dont think the stove is set up to shut down all the time..
A Harman P61 without an ignitor (or with one disabled/broken)
typically operates in a maintenance burn mode (idle) when it reaches set temperature rather than shutting down completely, provided it is in Room Temp mode. It reduces pellet feed to a minimum to keep a small fire alive rather than shutting down.
with that setup [ROOM AUTO]yes the stove can and will shut down if the room get's above temp it was set for Depending on how long it keeps that temperature.
sometimes for 5 or ten minutes, sometimes much longer depending on how tight or insulated your house is and " holds" the heat.
same stove in room/manual will just back off and just dribble few pellets at a time just to keep the flame alive but will Not shut down.
Your P stove without ignitor would prob react same as mine does in room manual since ignitor is not being used ...
I assume it will just simmer with few pellets dropping in to keep flame alive or else u would have to manually re-light your stove everytime it reached your set temp and i just dont think the stove is set up to shut down all the time..
A Harman P61 without an ignitor (or with one disabled/broken)
typically operates in a maintenance burn mode (idle) when it reaches set temperature rather than shutting down completely, provided it is in Room Temp mode. It reduces pellet feed to a minimum to keep a small fire alive rather than shutting down.
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Probably and assume are nice, but I need a yes or no if I'm going to spend big $$$ to up grade it to an ignitor. If it does completely shut down I will if it idles I won't.
the last 3 lines in bold print on my reply came from a harman site...
not sure why i 2nd guessed myself on this because I actually knew that harman without ignitor will not shut down unless u turn dial off or run out of fuel. burning 14 years.. [my P61A has a switch that if i push it down in room temp mode the stove will be same as yours as it disables the ignition and just simmers along in maint mode when not calling for heat.. many use this method so the ignitor is not firing up many times during the day or nite and just keeps a small flame going. uses a few more pellets though as opposed to being off..
not sure why i 2nd guessed myself on this because I actually knew that harman without ignitor will not shut down unless u turn dial off or run out of fuel. burning 14 years.. [my P61A has a switch that if i push it down in room temp mode the stove will be same as yours as it disables the ignition and just simmers along in maint mode when not calling for heat.. many use this method so the ignitor is not firing up many times during the day or nite and just keeps a small flame going. uses a few more pellets though as opposed to being off..
Whitenuckler
Minister of Fire
I thought we already solved this months ago...it shut down then because that switch was in the "up" position
I never tried it. That was back at the point when it was jamming up
Now it's changing temps all by itself again. Jumped from 340 to 400 over night. And the night before it jumped from 380 to 430 all while I was sleeping. Opened the door to clean it out came back 20 minutes late it's back to 340, has been all day. This was about 6am.
Whitenuckler
Minister of Fire
Installing am igniter is probably not easy, but it does come in handy in the fall and spring. In the winter you would want to leave it in "idle" mode anyway for sure. I ran all winter that way, and my basement stayed exactly at 70F. Running low on pellets though, and winter is still here.
Whitenuckler
Minister of Fire
I get mine at Home Depot, and in the winter I don't want to go there. For $60?or something like that I got 2 pallets 140 bags delivered.
Now I've gone through it all. I sold my RV trailer and got a little utility trailer. Now I can carry 1500 lbs of pellets plus some in the back of the jeep too.
Whitenuckler
Minister of Fire
Whitenuckler
Minister of Fire
Yes, but in room mode it has some regulation. If your stove is located in the room you want to heat, you would just extend your probe to an inside wall. If your stove is not in the room you want to regulate, ie a door separates the area you want to heat, it won't regulate that other room at all. But at least it's free to try for the room it's in. All you need is two conductor 18 guage wire and some small stab connectors. I cut my wire, but that is because I mounted just the sensor on a wall and used existing thermostat wire. You could use an old type mercury type or a millivolt type also, but it's not the same hookup. They would be wired in series with the probe at the stove.
Ran it on 2 all night.l, no issues, turned it up to 3 and it ramped up to over 400 f, wiggled the knob and it's down to 330. So the knob ( potentiometer) is buggered. I'm off to get a new board. Second one in 2 years. Not impressed
is you stove plugged into an actual surge protector? Be careful a lot of power strips are nothing more than an extension cord, meaning no surge protection.
I haven't pulled the board yet, but would the dip pins in the new one build in 2025, the same as the old one built in 2022. Same version F
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