Rinnai VM32E Servo Kit - The Genuine Article The Rinnai VM32E Servo Kit is a seriously reliable replacement bit of kit designed to fit straight into compatible Rinnai continuous flow gas water heaters. This precision-crafted servo assembly is the brain of the operation inside the water heater, carefully controlling how the internal valves work to keep your hot water flowing smoothly and your temper under control. These servo kits are the unsung heroes of the water heater's control system. They take their cue from the electronic control board and use it to fine-tune the valve positions, keeping your hot water coming out just right and your combustion on the safe side. But if the servo mechanism starts to get worn out or dodgy, you can forget about having a smooth hot water supply, reduced performance or annoyi