A group representing RHI claimants says it is considering how to identify members who may be flouting the scandal-hit scheme.
But the Renewable Heat Association of Northern Ireland (RHANI) said it cannot complete a probe until government audits are carried out.
It was responding yesterday after threatening to seek a court injunction to prevent the media publishing the names of RHI recipients.
RHANI last month secured an interim injunction preventing the Department for the Economy from naming members who are claimants.
It is also taking legal action against plans to cut payments made under the botched Renewable Heat Incentive scheme.
A public inquiry has been launched into the green energy initiative, which is set to run a projected £490m over budget.
The fall-out from the scandal has sparked a snap election.
The legal warning was made to BBC Radio Ulster's Nolan Show, which says it has obtained a full list of RHI beneficiaries.
The programme yesterday reported that some companies registered as dormant have been claiming thousands of pounds.
Dormant companies do not usually have significant accounting transactions.
In an unrealistic scenario, not taking account of stoppages for servicing and other issues, a 99kw boiler operating round-the-clock at 100 per cent efficiency could hypothetically earn about £55,000 per year.
But the programme said the list of RHI applicants shows that one company registered as dormant in 2015 and still dormant during part of 2016 had claimed more than £239,000 over a 10-month period.
Another firm reportedly claimed more than £250,000 for a single boiler over a period of up to 18 months.
The Nolan Show said none of the companies answered questions when contacted, and it received an injunction warning from RHANI.
A spokeswoman for the group, which has more than 500 members, yesterday said it could not comment on the examples cited as it has not seen the documents.
"This situation has arisen because of a lack of financial scrutiny by the department and RHANI believes the responsibility to carry out these audits falls on the Department for the Economy," she said.
"RHANI was contacted by the Nolan Show approximately 15 minutes before the programme went on air and were not made aware of the names of the companies being discussed and therefore could not comment on their validity.
"The Nolan Show has been advised that an injunction has been obtained by RHANI against the department preventing the release of certain details and that the Nolan Show and all media outlets are on notice of that injunction.
"As such the media should refrain from publishing any information that is caught by that injunction."
The spokeswoman added that RHANI has commissioned an economic assessment of the RHI scheme from an independent analyst outside Northern Ireland.
"It is also considering how to identify members who may be flouting the scheme, but it is not possible to complete that activity until the audits have been carried out," she said.
The state-funded RHI scheme was supposed to encourage the use of renewable energy, but paid out more in subsidies than the cost of fuel.
It has been engulfed in claims of abuse, including allegations that a farmer is set to pocket around £1m over the next 20 years for heating an empty shed.
