Johnson Lifts — No clear information service and the details

Address:

560036

We are not getting the clarification regarding the Spare parts.

Recently a technician visited out place and checked the LIFT. After few days we had a report saying some parts need to be replaced, then we can take the AMC. We are not getting the details about the spare parts lists. We are not getting the cost breakup and we are not getting the functionality missing because of the specific sensors. The AMC executive is telling "We can only give bundle offer only for spares we cannot give breakup" and not telling any information what are those sensors specifics.

These are the list if spares in the inspection report.
1) Screen Sensor Unit.
2) Bearing Oil - This we can understand the reason.
3) Door Limit Switch
4) Single Phase Preventor Mono.

Need help in Better understanding of the details and the process.