# resistance measurement problem with digital multimeter

I accidentally caused a short circuit with DMM common lead while measuring 220 AC voltage.

then when I tried to measure resistance it gives me a reading of 3500 ohm while there is no resistor connected and it gives me 0 ohm when I touched the test probe leads together.
my DMM is DT-9205A

• I would expect to read $0\Omega$ when the probe leads are shorted, but the open circuit reading is definitely off. – Null Nov 7 '14 at 14:28
• Maybe there was a varistor or TVS/Zener etc. diode to protect the multimeter and it has 'shuffled off this mortal coil'. – Spehro Pefhany Nov 7 '14 at 14:42