modine hot dawg only stays lit for 10 seconds?

[upjeeper]

i've got a modine hot dawg i bought used. it lights on all 5 burners but only stays lit for 7-10 seconds
how do i figure out if it's the flame sensor? flame rollout switch? or something else?

thank you

 

[The Cobbler]

does it give an error code ? usually a red or a green flashing light . watch the number of flashes and behind the cover should be a guide as to your issue

 

[chinboys]

Check the flame sensor or rather clean it as well as making sure it has a decent ground. The sensor makes mili AC voltage to feedback to the controller and safety systems. It needs to be grounded to the chassis and the chassis needs a good ground (earth).

The flame rollout sensor if detected or activated is a hard reset that you must perform... it doesn't auto reset.

 

[upjeeper]

the control board doesn't have an LED to give error codes, but the gas valve has an LED

i have cleaned the flame sensor, no change
i have a DMM but it won't do micro amps

 

[D45]

What BTU?

 

[MOS3522]

https://irp-cdn.multiscreensite.com/46737ca5/files/uploaded/Hot%20Dawg%20Troubleshooting%20Guide.pdf

There are also at least 200 threads on the Hot Dawg in the archives, try searching there. Here are a few:

Hot Dawg HD45 Won't Ignite

My 4 year old Modine Hot Dawg (HD45) suddenly stopped igniting. Ran fine yesterday morning and now nothing. It goes through the whole startup sequence, and a spark is visible, but it won't ignite. It makes the 5 attempts and goes into lockout. Details: Located in detached garage Natural gas...

www.garagejournal.com

Modine hot dawg

Need some help lol. our new how has had lots of expensive issues that we’re trying to work through. Our garage heater is a hot dawg, when we turned on the power fan came on but no spark. We asked our heating guy to take a look, he said it was the board. At our expense we’ve since found out he’s...

www.garagejournal.com

Modine Hot Dawg 30000

I have a 30000 BTU Hot Dawg heater. It has been running fine for 3 years. Last night, it had a problem. This morning the circulation fan was running but blowing cold air. I cut the power and restarted it, only the circulation fan came on. It has gas, because the line services other items and...

www.garagejournal.com

 

[upjeeper]

i found someone who had a used honeywell smart valve, we did a swap and it works great now.