Manx Utilities says its lines have been very busy after "a potential burst" in Douglas.
The properties affected are reported to be in Cronk Y Berry/Glen Park, Governors Hill and Williston.
Manx Utilities said engineers are investigating and updates will be provided as soon as possible.
A company spokesman added: "Our lines are very busy and we apologise if you cannot get through".
Two-hour delay to this evening's Liverpool sailing
The Steam Packet Company says tonight’s Manannan sailing from Liverpool will set off two hours late.
Peel lifeboat called to yacht with engine trouble
Peel lifeboat went to the aid of a yacht which suffered engine problems on Friday.
Island's new archbishop named
The Island’s Catholic church will have a new leader next month.
Is the Isle of Man 'wokest place in UK'? asks newspaper
The Daily Mail has been on the Island to investigate if we're the woke capital of the UK.
Police investigating after shotgun threat against minister
A man who suggested removing a minister “with a shotgun” will be investigated after she reported it to police.
Wildlife surveys near proposed windfarm site this week
A team of ecologists will be surveying wildlife in the south of the Island near a planned windfarm next week.
Manx Care reprimanded over former worker's data access failings
Manx Care's been rapped for dragging its heels under data protection laws.
Government announces pay deal with unions
The government says it's reached a pay deal with two public sector unions.
