Combitherm Ovens

Discussion created by commercialappliance on Dec 7, 2018
Latest reply on Dec 8, 2018 by olivero

Alto Shaam Combitherm Steam Convection Oven

Model:  CTP20-20G

Serial:  1504750-000

The call was ignition would not light, it has upper and lower ignition, electronic his, the upper ignition had an error code E89, I replaced ignition module, I ohmed out the hsi, the ohm value was suppose to be between 40-60 ohms, it was open, I replaced the ignitor and changed the flame sensor, called for heat, no error code on upper ignition, however, E86 on lower ignition, I replaced module and Ignitor on general principle, called for heat, still no burners, I called tech support, they explained how to go into set-up and look at the blowers speeds and the performance of the system, he said the combustion blowers were suppose to operate at 150 herz or in the ball part, the upper motor was at 129 herz, the lower blower was at 151 herz, the factory advised me to replace the motor, the new motor turned at the same herz, they switched me over to the head tech support guy, we went back into the set-up and he wanted to know what software the unit is running, I told him, he said that the software was out of date and to go the Alto Shaam website and download the update onto a flash drive which I did and upload it to the oven, it corrected the blower speed but still no ignition.  Does anyone have experience these ovens, I am pretty much exhausted my approaches?