The 'no confidence' motion was moved by the opposition alleging that Karunanayake was incapable of handling the economy, tackling the depreciating currency and raising taxes.
When the parliament met in the afternoon during the Prime Minister's question time the sudden failure of the sound system was noticed.
Speaker Karu Jayasuriya adjourned the house after the technical failure could not be rectified.
Jayasuriya announced that the parliament will meet again tomorrow.