Rheem Water Heater Troubleshooting. Here are tips for solving your Rheem water heater problem or deciding to call a Rheem service company to handle the repair. No Hot Water . All electric water heaters and gas heaters that use electricity: The first issue to troubleshoot is a lack of power to the unit. The flow of hot water is not adequate to keep the water heater operating. This can be caused by flow restrictors and water saving low flow taps. You'll need to have a plumber increase your hot water flow rate to a minimum of two to three litres per minute. To find your local Rheem Approved Plumber, contact us or call Rheem Service on 1300 556 Rheem is a leader in the HVAC industry offering a wide selection of heating and cooling products, including air conditioners, heat pumps, furnaces and more. Upgrade your home's HVAC system to Rheem today. Designed and manufactured to meet New Zealand's energy performance standards, there's an electric water heater to suit your requirements. If you're looking for Low Pressure or Mains Pressure hot water cylinders, Rheem has a size to fit your home or project. Appliance manuals and free pdf instructions. Find the user manual you need for your home appliance products and more at ManualsOnline. Rheem Water Heater Tankless Water Heater User Guide | ManualsOnline.com Get Rheem XE50M06ST45U0 Instructions / Assembly. Get all Rheem manuals! ManualShelf. Sign Up. Sign up to create an account it is recommended that the hot water faucet be opened for several minutes at the kitchen sinkbefore using any electrical appliance connected to the hot water system. "HOT" water. The temperature of the water in the heater is regulated by the water heater interface control. To comply with safety regulations the temperature was set at 120°F before the water heater was shipped from the factory. The illustration below shows the water temperature setting. Refer to the Operating Instructions in this manual Rheem Fury 22V40F1 Water Heater Fac