I need help with my p68

Sorry to hear about your problem. Damn cold out too!
Double check everything you did during cleaning to make sure that you do not have a vacuum leak. (Doors,Lid,Fines box cover)
We forgot to latch the hopper lid one time and the stove shut down. Left the Fines box cover off another time and pellets would not feed.
A quick test for sensor: Hang out the window. Should cause stove to ramp up.

**Did you clean around the temp sensor which is in the exhaust pipe? If you did and you happened to hit it, might be damaged. They are VERY sensitive.**


Good Luck

Good advice from lessoil.

If you did not empty the fines box it may be full. I have had a P68 for 6 years, the fines box has only been full once, that was when it was less than 3 months old.

The sensor is very finicky. A couple of months ago, I did exactly what lessoil is talking about, hanging the sensor out the window. The stove came to life immediately. The sensor had been in the same position for over 5 years, but for whatever reason, it didn't want to work there anymore.

Probably not your problem, but you never know. Empty the hopper and make sure there is no "plug" where the pellets feed in. Retrace all your steps.

Tom

All excellent advice above....room sensing probe location first, then fines box cover(very easy to mess that up). Try it on Stove temp and let us know if it works. If it doesn't I'd lean towards ESP damage during cleaning.

**four responses before 7AM EST on a 3:00AM post! Damn we're good!

Agree, if there is not a status blinking on the panel, probably a bad ESP. Hopefully covered under warranty unless you can see damage.

Agree. Try it in stove temp mode. If no go it's probably a bad ESP. The ESP on my 8/20/13 made P68 crapped out after 5 days. The DDM showed readings ALL over the place. New ESP and all is well.

Very good. Did you check the connections on the room sensor? Perhaps moving it tweaked it enough to make contact. Seeing it worked great for a while, if in fact the sensor was the problem, you could have a loose connection. The connection terminal isn't the best design. Mine was popped out from the factory causing it to ground out on the chassis.

That was exactly the problem with mine. The sensor wire was coiled behind the stove, ran fine for 5+ years. I moved the wire to a new location and it works fine.

Tom

Glad you found the problem!!
-6 here at 04:30, probably as cold where you are.
We also had an issue because of the thermostat (Thermistor) location back in 2008.
The stove kept ramping up the temp. My Wife thought I was trying to drive her out of the house.
The floor was cool where the thermostat was coiled.
Ended up extending the wire so now it is located in the opposite corner of the room hanging off the furnace thermostat.
I soldered all connections and has been fine since.

Enjoy your new stove! Harman's are real work horses!
Happy new Year!

Mike