Harman p68 air flow light blinking

[obsessed penguin]

My stove has been intermitently giving this signal almost since we had it professionally installed. It will produce a strong flame for a while then will shrink when the status light starts double blinking.
Ideas ?

 

[DAKSY]

"Status light error messages: 2 Blinks: Indicates an open feed circuit, typically from pressure switch or hopper switch. Blink status automatically clears when feed circuit is complete. Does not blink if door/ hopper is opened when stove is off."

Have you checked either of these switches?

 

[obsessed penguin]

according to the Harman trouble shooting guide, 2 blinks is airflow

 

[SciGuy]

according to the Harman trouble shooting guide, 2 blinks is airflow

Both the low pressure switch and hopper open greatly influence airflow so I'd say Daksy and Harman are on the same page just worded differently. I assume you have the hopper lid closed as well as the ash door and main door? Air leakage from the last two will cause the low pressure switch to remain open.

Hugh

 

[obsessed penguin]

Thanks but all the doors are shut tight. Other possibilities ?

 

[SciGuy]

Thanks but all the doors are shut tight. Other possibilities ?

You mentioned a professional installation. What’s your vent configuration? A partially plug vent will cause this situation too.

Hugh

 

[obsessed penguin]

I'm going to contact them tomorrow. Thanks Hugh

 

[Washed-Up]

Check the air flapper on the air intake, make sure it’s moving

 

[obsessed penguin]

How do I find it ?

 

[DAKSY]

If you have an OAK, it's where that is attached to the stove.
It's located under the left rear shroud, as you look at the stove from the front.
A 5/16 " socket, wrench or nut drive will work for removal.
The location is indicated in the top pic.

 

[rickwai]

How do I find it ?

Flapper wont cause that problem. If it is stuck it will increase Vacuum in fire box.

 

[Washed-Up]

This is a couple photos of the one I picked up last summer, ignore the blue coupler, the flapper is inside.

 

[obsessed penguin]

Turns out the front door wasn't super tight. All set now. Stove is a beast !

 

[SciGuy]

Turns out the front door wasn't super tight. All set now. Stove is a beast !

Excellent news!

 

[Washed-Up]

So glad you figured that out....running out of possibilities