I have a Yale GLC050VXNVSE083 unit that was sent to a local shop in Houston, TX for repairs. When the unit was returned, there wasn't enough power to drive it up the ramp into the warehouse, even though the unit was supposedly tested and deemed ready to be returned to service. The driver for the shop took it back for further testing. Have had to wait several weeks for a Yale rep to unlock the unit to clear some codes and get some additional information. It was determined that the cause of the lack of power is a clogged Catalytic Converter. The estimate for parts and labor is $1550.00. There were no previous indications or codes related to issues with the catalytic converter. Should there have been codes? What can cause it to be clogged? I store the unit in a warehouse, but while at the shop, it was stored in an open lot, which caused the forks to rust. Is $1550 for parts and labor reasonable? We've already paid close to $6000 for other repairs and a rental unit, so this will push it over $8000. We may need to consider getting a new forklift, and dumping our current service company.

Thanks.