Grieving families had to hold cremations miles from their hometown because of a backlog at a council-run site.
A broken burner at Wrexham Crematorium meant 17 services were diverted to Shrewsbury.
The crematorium in Pentrebychan was already facing a backlog of services as essential upgrades are being carried out.
Wrexham County Borough Council chiefs insisted they were working as hard as they could to accommodate cremations and hoped they would be back on schedule in July with all upgrades completed by autumn.
They said they were working to minimise any delays and that families were understanding.
The council’s head of environment John Bradbury said: “We are in the process of carrying out major and essential improvement works to the cremators at Pentre Bychan Crematorium.
“This involves installing new cremators and a mercury abatement system to comply with environment regulations.
“The process of removing the old cremators and installing new cremators inevitably causes some delays to the normal service at crematorium.
“Pentrebychan Crematorium is currently behind in booking cremations and is working to its maximum capacity.
“This is due to having one cremator currently in use while the installation of new cremators and abatement equipment is taking place.
“Recently, the only cremator in use developed a technical fault and cremations booked into Pentrebychan were moved to other crematoria in the area while the repair took place.
“During this period families were informed of the problem and the fault has now been fixed. We apologise for the inconvenience this may have caused.
“We are hoping the improvement works will be fully completed by the autumn.”
Commenting further on the breakdown he said: “The broken cremator was down in three days, which meant 17 cremations had to take place in Shrewsbury.
“All services at Pentrebychan were and continue to run as usual.
“They’re hoping to be back on schedule for July.”
Funeral directors did not want to comment.
Wrexham council deputy leader David Bithell said he had been briefed on the issue.
“There were problems with the burner recently but that has been sorted out now,” he said.
“The crematorium is not operating at maximum efficiency at the moment while the works is carried out, and a family that may have wanted to say book a service for a Wednesday may have to wait a day, but they are being understanding.”
Esclusham councillor Mark Pritchard, whose ward the crematorium is in, said: “This is the first I’ve heard of it and I’m disappointed that as the councillor for the ward nobody informed me.”
Pentrebychan Crematorium is on the outskirts of Wrexham and was opened in 1966. The site was previously the location of Pentrebychan Hall.
The crematorium handles 1,600 cremations per year, with 50% from the borough of Wrexham and 50% from other areas.
The crematorium grounds extend for 40 acres and are maintained as semi natural woodland.
l IF you’ve been affected contact Steve Bagnall on 01978 315828 or e-mail firstname.lastname@example.org