Mcs Motor Control System Board Replacement - Friedrich VRP12K Service And Parts Manual

COMPONENTS TESTING

Mcs Motor Control System Board Replacement

1. Remove power from the unit and wait 2 minutes for capacitor bleed off before removing leadsd or handling the MCS board.
2. Disconnect electrical connections and tag wires.
3. Unhook heater board communication cable to avoid damage.
3. Remove 10 9/64 allen head bolts.
4. Tap from the back to dislodge the board.
Caution: when reinstalling bolts use hand tools and hand tighten. Cross threading the bolts may cause the need for high level
repairs.
5. Remove SD card from old board and place into new board.
6. Install new board into unit.
Heater board communication cable connector
Allen Head Bolts
Figure 617 (MCS Board)
138