B.
MICROPROCESSOR - REPLACEMENT
1 . Unplug the PowerTrap and disconnect the regulator from the propane tank.
2.
Remove the top cover. (See Appendix A for instructions on removing the top cover.) as
follows:
3.
Remove the three nuts located at the top of the PCB and raise the board to gain access to the
microprocessor.
4.
Locate the microprocessors (Chip) on the PCB near the inside edge of the board and
carefully remove it from its socket.
5.
Orient the replacement Chip, marked MT-125-P03 or MT-275-P04, depending upon the
applicable PowerTrap model, by matching the dimple centered at the top, left hand edge of
the Chip with the slot centered along the side of the socket and insert the Chip into the
socket.
6.
Lower the PCB back into position and secure with the three nuts.
7.
MT-275 only, connect the ribbon wire from the underside of the top cover to the PCB taking
care to engage all slots in the plug with corresponding pins in the socket. (Not applicable for
MT-125).
8.
Install the top cover by spreading the louvers at the rear of the unit to engage the boss at the
rear of the cover and secure with screw. Install the two screws in the front of the unit to
secure the top cover to the metal plate.
9.
Attach electrical plug and gas regulator.
MT-125 & MT-275
