TasTAFE chief executive Jenny Dodd said on Thursday only one electrotechnology teacher had left the department in the past 10 months.

Ms Dodd said that there were 21 electrotechnology teachers statewide employed by TasTAFE. As of March 6, one person had left the role, and there were 20 teachers in the department.

"Due to a staffing departure at short notice, training for 52 TasTAFE southern electrotechnology apprentices has had to be rescheduled," Ms Dodd said.

Opposition TAFE, University and skills spokeswoman Michelle O'Byrne said apprentices sould not be penalised for "ongoing staffing and other issues at TasTAFE".

“This symptomatic of a larger problem as students across trades are impacted,” Ms O’Byrne said.

Last weekend, Ms O'Byrne called out TasTAFE for issues with plumbing apprentices, with some apprentices told they will have to have their training extended for six months.

However, Ms Dodd said no electrotechnology apprenctices would be adversely impacted by the delay to their qualifications.

"We are working quickly to address the situation by recruiting additional teaching staff and assessing the most efficient way to reschedule classes, in consultation with industry."

Ms Dodd said there was a short-term delay at the beginning of the semester for plumbing apprentices while teachers were recruited but it would not affect completion timelines.

Ms O'Byrne called on Education Minister Jeremy Rockliff to conduct an urgent audit into the teaching shortages and requirements at TasTAFE and intervene in the issue.

“This government is denying Tasmanians the opportunity to become skilled through the public trainer – they are denying Tasmanians a pathway to jobs.

“Ongoing staffing issues at TasTAFE are impacting on the careers of Tasmania’s young apprentices.

Ms Dodd said TasTAFE would always have trouble recruiting skilled trades teachers because wages for those teachers remain high in the industry.

"While we celebrate the economic growth Tasmania is experiencing, unfortunately at these times teaching is often less attractive. We are working closely with the state government, Skills Tasmania and industry to address training demand and skills shortages now and in the future," she said.

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