It also rejected the employer's claim that he told Mr Lyttle his pay would be docked because he had quit suddenly.
Authority officer Rachel Larmer said two separate submissions about Mr Lyttle's so-called resignation from other employees in the workshop were not credible and accused Mr Harris of writing them.
"I do not see how two witnesses can write an identical account in the way that these two witnesses claim to have coincidently done," she said.
Ms Larmer said the loss of Mr Lyttle's job created serious problems for him and his family and caused distress.
Ms Larmer ordered RHY Contracting to pay Mr Lyttle $5000 in compensation.
RYH Contracting was also ordered to pay a further $1223.25 in unpaid wages, holiday pay and equipment fees, as well as Mr Lyttle's legal costs.