Difficulty

Part Used: NCH840-PCB

Locate the black box mounted on the wall of the in the compressor area. This is the PCB housing. Unscrew the two black screws and remove the housing.
This is the power control board. There is a total of 9 quick-connectors and 2 spade connectors established on the PCB. Disconnect all the connections and have your new PCB on standby.
a. All the terminals EXCEPT the ones boxed in red have connections bound to them. No two quick-connect terminals are the same size, so there should not be any confusion as to where each wire connector belongs. However, note the order of the black wire and white wire on the bottom when connecting to your new board. These are spade connectors with identical terminals. Make sure the black wire is connected on the left while the white wire is connected on the right.

b. If your PCB looks like this, the crossed terminals do NOT have wire connectors bound to them.
Connect the wires to each terminal in the order numbered below. This order will make connecting all easier.
Place PCB with all attached wires back in its slot. Then screw in the black cover removed from step.

ONLINE SUPPORT

Send us a message through our live chat messenger at Newair

Send us an email at support@newair.com(We will respond to you within 24 hours during our normal business hours: M-F from 8-4pm PST)

Call our support team: 1 (855) 963-9247