Supply temperature was 99 and the return temperature was 65. Heat rise had a temperature difference of 34 degrees. Checked air movement system which was clean and clear of all debris. Checked wires inside wiring compartment which were all clean and secure. Checked flame gateway system which was rusty and cracking so I consulted with customer on the repair. Checked heat sensor system which was rusted and melting so I consulted with the customer on that repair as well. Checked air movement system voltage enhancement system which has a factory spec of 10uf. It ran at a 9.3uf which is within the factory fault. Checked voltage enhancement system which was a 55/5uf. It ran at a 53.9/4.9uf which is within the factory fault. System is running at normal operation at this time.