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lowcay2012
Explorer
Oct 10, 2023

Norcold N611 Cooling on Propane Only

Hi all.

I am trying to troubleshoot a control problem on a Norcold N611. The 120V relay is not activating on the power board. There is power on both sides of both fuses. All the common advice says that the board is bad as it is "always the board". I have 2 new boards in hand. Both behave exactly the same. The K2 relay does not close. The 120V heating element is also new.

I have measured the control voltage on the wires connecting the power board to the optical control board and selector switch. I would really love to know what the voltages in the table should be.

Switch Position OFF AUTO GAS
(V DC) (V DC) (V DC)
White/Red Stripe 12.30 12.30 12.30
Black 0.0 0.043 0.043
Blue 0.0 1.00 1.00
Green 0.0 12.14 12.15
White/Violet Stripe 0.0 0.042 0.042

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