Carlin EZ Gas Pro Code - uA low check FRod

LI_CJ

Hi,

Have the above Carlin on my Peerless boiler. Wasn't firing this morning so I reset it and it fired up. It's only done this once before 6 months ago and I had a tech come to check things out. He was honest and didn't want to start replacing parts that didn't need replacing.

I did pull the above code - 'uA low check FRod'. Having trouble finding a site to translate codes online, if anyone can help, would be great, thanks.

Alan (California Radiant) Forbes

Flame rectification relies on feedback from the flame probe. The flame probe generates a small amount of electricity when a flame surrounds it and the flame safeguard monitors the amount of electricity being generated. If too low, it will shut down the unit and display an error message.

Microamp (uA) low check flame rod (FRod)

EBEBRATT-Ed

The code is telling you that the micro amp reading (which is the signal the flame is sending to the primary control) is reading low.

You need to get your technician back and he can call Carlin for assistance.

Could be"
Plugged or partially plugged oarfice
gas pressure or air adjustment not set properly
Flame rod needs cleaning
flame rod not grounded properly
flame rod not set in the flame properly

and the list goes on

The tech needs to use combustion test instruments and a meter that reads micro amps (UA)

LI_CJ

Excellent, thank you. Will make appt to have looked at.

EzzyT

Start with cleaning the flame rod and diffuser plate. Make sure that neither the flame or spark rods are touching the diffuser plate. If code still occurs then the primary control would need to be replaced.

Tim McElwain

Here is the connection for the manual https://carlincombustion.com/wp-content/uploads/MNEZGas-061715-production.pdf