Harman DVC-500 headaches

Post Reply
 
Brombones711
New Member
Posts: 4
Joined: Sat. Nov. 13, 2021 1:13 pm
Stoker Coal Boiler: Hartman DVC-500
Coal Size/Type: Rice

Post by Brombones711 » Sat. Nov. 13, 2021 1:24 pm

Hello. I’ve had this stove over 4 years now. It was acting up. I replaced the combustion blower, it was noisy. Half the squirrel cage was rusted away.

Replaced circuit board. The pin block has #5 switched up the rat are down

Everything runs in test mode now but in regular mode status flashes 5 times. According to manual TSP is malfunctioning. So it won’t allow the combustion blower to work. I use the stove in stove temp mode, no thermostat.

I can’t seem to find the TSP probe anywhere. Any input would be greatly appreciated. Thanks

 
User avatar
nepacoal
Member
Posts: 1696
Joined: Wed. Nov. 21, 2012 7:49 am
Location: Coal Country
Stoker Coal Boiler: Keystoker KAA-4 / "Kelly" and an EFM 520 at my in-laws
Hand Fed Coal Boiler: Harman SF-260 - retired
Coal Size/Type: Buck

Post by nepacoal » Sat. Nov. 13, 2021 2:11 pm

Do you mean the ESP probe? If so, I see black wire (older models) and red wire (newer) on eBay for around $20. Stove stores have them too, but for much more... Just search for DVC500 on eBay

 
User avatar
nepacoal
Member
Posts: 1696
Joined: Wed. Nov. 21, 2012 7:49 am
Location: Coal Country
Stoker Coal Boiler: Keystoker KAA-4 / "Kelly" and an EFM 520 at my in-laws
Hand Fed Coal Boiler: Harman SF-260 - retired
Coal Size/Type: Buck

Post by nepacoal » Sat. Nov. 13, 2021 2:19 pm

Screenshot_20211113-141503.png
.PNG | 1037.4KB | Screenshot_20211113-141503.png
Stove parts unlimited have black wire in stock...


Woodsman's parts plus have them too:

 
Brombones711
New Member
Posts: 4
Joined: Sat. Nov. 13, 2021 1:13 pm
Stoker Coal Boiler: Hartman DVC-500
Coal Size/Type: Rice

Post by Brombones711 » Sat. Nov. 13, 2021 5:01 pm

No it’s actually a yellow wire and us mounted just above the fines tray in back of stove.


 
User avatar
nepacoal
Member
Posts: 1696
Joined: Wed. Nov. 21, 2012 7:49 am
Location: Coal Country
Stoker Coal Boiler: Keystoker KAA-4 / "Kelly" and an EFM 520 at my in-laws
Hand Fed Coal Boiler: Harman SF-260 - retired
Coal Size/Type: Buck

Post by nepacoal » Sat. Nov. 13, 2021 6:03 pm

I've only seen discussions concerning the black and red wire probes... Too bad it's not the ESP. That would have been an easy fix. Good luck with the repair.

 
BostonBob
Member
Posts: 254
Joined: Sat. Dec. 22, 2018 2:29 pm
Location: WNY
Hot Air Coal Stoker Stove: Harman DVC500,Alaska Gnome 40
Coal Size/Type: Rice

Post by BostonBob » Sun. Nov. 14, 2021 10:29 am

Hello, if you put the old board back in will the combustion blower work ? If not I would start with replacing the TCP probe, if the stove still has the same issue the new board may not be working correctly ? Good Luck and let us know

 
User avatar
McGiever
Member
Posts: 10130
Joined: Sun. May. 02, 2010 11:26 pm
Location: Junction of PA-OH-WV
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hand Fed Coal Boiler: BUCKET A DAY water heater
Hand Fed Coal Stove: Warm Morning 414A
Coal Size/Type: PEA,NUT,STOVE /ANTHRACITE
Other Heating: Ground Source Heat Pump and some Solar

Post by McGiever » Sun. Nov. 14, 2021 10:41 am

Hmm, different boards, and different color probes…seems confusing for sure.

Should the “new” board now require a “new” manual???

 
Brombones711
New Member
Posts: 4
Joined: Sat. Nov. 13, 2021 1:13 pm
Stoker Coal Boiler: Hartman DVC-500
Coal Size/Type: Rice

Post by Brombones711 » Sun. Nov. 14, 2021 11:56 am

Hey thanks for the help so far. I’m gonna try the old board and see what happens. And yes this has the black wire esp sensor also. But the one for the 5 status blinks is the yellow one according to manual. I’m guessing this stove is from about 2002. The rest of the stove is in great shape. Just need it to function lol


 
BostonBob
Member
Posts: 254
Joined: Sat. Dec. 22, 2018 2:29 pm
Location: WNY
Hot Air Coal Stoker Stove: Harman DVC500,Alaska Gnome 40
Coal Size/Type: Rice

Post by BostonBob » Tue. Nov. 16, 2021 4:09 pm

So how did you make out ?? curious if you now have a fire 🔥 glowing from those black rocks ? 😁

 
Brombones711
New Member
Posts: 4
Joined: Sat. Nov. 13, 2021 1:13 pm
Stoker Coal Boiler: Hartman DVC-500
Coal Size/Type: Rice

Post by Brombones711 » Tue. Nov. 16, 2021 4:53 pm

Installed old board. Guess I didn’t need old board. Now it works fine. Now to try and send board back

New combustion blower working great. Seems to be burning much better
Fingers crossed
Thanks again

 
BostonBob
Member
Posts: 254
Joined: Sat. Dec. 22, 2018 2:29 pm
Location: WNY
Hot Air Coal Stoker Stove: Harman DVC500,Alaska Gnome 40
Coal Size/Type: Rice

Post by BostonBob » Fri. Nov. 19, 2021 6:32 pm

Glad your back burning good ! Thanks for the feedback, sorry it seems you got a bad board, good luck with sending it back

Post Reply

Return to “Stoker Coal Furnaces & Stoves Using Anthracite (Hot Air)”