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Author Topic: Suburban DSI water heater problems SW6DEL  (Read 184 times)

Abendage

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Suburban DSI water heater problems SW6DEL
« on: November 05, 2017, 04:08:29 PM »
Hello everyone,

I'm having an issue with my water heater. Everytime it tries to ignite via DSI all the lights in the camper flicker, the radio resets to factory defaults and it resets my Victron battery monitor, which is the biggest problem. So it's basically interupting the whole 12v system when it tries to ignite.

Does this sound like a bad ground? Not sure what would cause this type of issue?

Any ideas? Thanks in advance!
2006 GMC 1500 4x4 Crew Cab 5.3L
2018 Rockwood 2509S

John From Detroit

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Re: Suburban DSI water heater problems SW6DEL
« Reply #1 on: November 05, 2017, 05:36:30 PM »
Well posibly a bad ground. possibly a bad Positive connection I would start AT THE BATTERY.. Since the problme is prior to the 12 volt distribution panel. (fuse box)
Nothing adds excitement like something that is none of your business
My Home is where I park it.

Gary RV_Wizard

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Re: Suburban DSI water heater problems SW6DEL
« Reply #2 on: November 06, 2017, 06:42:22 AM »
Do other DSI burners cause the same problem, e.g. furnace or fridge in LP gas mode? If not, I would be looking at the igniter and control board at the water heater for a possible short.  DSI ignition is a simple pulse of high voltage, low amperage DC
Gary
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Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

donn

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Re: Suburban DSI water heater problems SW6DEL
« Reply #3 on: November 06, 2017, 07:39:49 AM »
Dead battery would be my first guess. 

Abendage

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Re: Suburban DSI water heater problems SW6DEL
« Reply #4 on: November 06, 2017, 03:17:22 PM »
Batteries are in good shape.  I have 4 GC2's fully charged in there, all other loads work as they should, including the DSI on the fridge and the furnace.

After playing around with it more today, I think Gary is right, the control board is bad, I can't get it to light at all anymore.  The gas valve solenoid cycles on, then off after a few seconds, and you can smell gas, but no sparky. It also doesn't trip any of my other electronics up when the solenoid clicks on either. The water heater pulls .4 amps when you turn on the switch, then once the gas valve turns on it pulls 1 amp, until it shuts itself off.

After a few tries, I pulled the board out and the section of the board around the Q3 label was too hot to touch. It isn't visibly burnt yet, but my guess is it wouldn't take long. After researching a bit it seems like Suburban is having issues with late model boards and that is the section of the board that Suburban is having issues with. I will contact them to see about a replacement.

Thanks for all your help!
« Last Edit: November 06, 2017, 03:40:17 PM by Abendage »
2006 GMC 1500 4x4 Crew Cab 5.3L
2018 Rockwood 2509S

donn

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Re: Suburban DSI water heater problems SW6DEL
« Reply #5 on: November 06, 2017, 05:32:13 PM »
Forget Suburban,  go to Dinosauer boards for lota less money for a better board.

Abendage

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Re: Suburban DSI water heater problems SW6DEL
« Reply #6 on: November 06, 2017, 08:03:36 PM »
It should still be under warranty, but if I canít get it replaced under warranty or it is too much of a hassle Dinosaur is the plan!
« Last Edit: November 06, 2017, 08:06:13 PM by Abendage »
2006 GMC 1500 4x4 Crew Cab 5.3L
2018 Rockwood 2509S

 

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