Fluke 179 batt display

a. Connect test leads to the + and COMMON terminals.

b. Turn the function selection switch to the DC OHMS position.

c. Turn the range selector switch to the 200mV position.

d. Short the test leads together.

e. Allow the instrument to warm up for 15 minutes.

f. Using an insulated screwdriver, adjust the potentiometer through the hole located directly below the analog display for a numerical display of 00.0. http://www.simpson260.com/downloads/simpson_360-2_user_manual-1975.pdf

check for shorts in circuit after battery connector

keypad may be stuck - check if any of the keys are pushed in permanently

Needs new board, send back for service.

RSOB housing and switch contacts need to be replaced unless main board is damaged.

probably need new board - send back to Fluke for repair

send it back to Fluke for service if you are certain that battery is good and connector is not damaged (check Voltage on 2 pins that come to the board)

Switch is the problem here, see if you can clean contacts or check if switch contacts are broken.

Needs new buzzer disc, or maybe buzzer disc fell out of its place and just repositioning it fixes the problem.

You will have to send it to Fluke if you want to repair it. The North American Service Center phone number is 1-888-99FLUKE.