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Air pressure will force this water out of the expansion tank into the supply once usage resumes. The expanded water is flowing back from the heater and into the pressurized storage bladder of the expansion tank. The pressure should increase only slightly then hold steady throughout the recovery cycle. ![]() Run the thermal expansion check again.Follow the manufacturer’s instructions for installing the expansion tank. The expansion tank is installed between the PRV and the water heating system. The PRV is installed between the check valve and the water heating system.The valve will close once the pressure falls below the pressure setting of the valve. The temperature and pressure relief valve (T&P) or PRV should open and release water once the pressure reaches the maximum setting on the valve.In that case the pressure will increase slightly, hold steady for a short time and then rapidly increase. A small amount of thermal expansion control may be built into the system because of trapped air pockets or a water hammer arrestor. If the system is closed, the pressure will start to climb steadily and rapidly.Turn the thermostat back up to its normal position, so the heater cycles on. Check the water pressure gauge, and turn the pointer so it lines up with the pressure indicating needle.Make sure that outside fixtures, if they are on the same system, are turned off too. Shut off the drain valve and make sure that no other fixture in the system, hot or cold, is open.Open a hot water tap and allow 15% to 20% of the tank’s volume to run out.Open the drain valve, so the gauge reads system pressure. WATER HEATER SERIAL NUMBER LOOKUP INSTALLTurn the heater thermostat all the way down, and install a water pressure gauge with dead hand on the drain valve.The water in a water heating system expands when it is heated and has a greater volume.įollow these easy steps to diagnose thermal expansion: If you purchased an Extended Warranty for your standard (traditional) water heater from The Home Depot, call The Home Depot Extended Warranty Service Center at 1-87.The most common reason a T&P valve is dripping water is thermal expansion. WATER HEATER SERIAL NUMBER LOOKUP HOW TOThis includes product information (dimensions, operation, how to drain), warranty, service, parts, troubleshooting (pilot light, leaking, noises), complaints, etc. If you have questions about a GE-branded standard (traditional) water heater or are looking for a replacement for your GE water heater, contact the GE Water Heater Technical Support Line at 1-80 (Monday - Saturday 8:00 AM - 8:00 PM EST, Sunday 9:00 AM - 4:30 PM). Standard (Traditional) Electric or Gas Water Heaters Made Prior to January 2017 This includes product information (dimensions, operation, how to drain), warranty, service, parts, troubleshooting (leaking, fault codes, noises, filter), complaints, etc. GeoSpring Heat Pump Water Heaters Made Prior to July 2019įor service and support (product information, warranty, parts, etc.) on the GeoSpring Hybrid Electric Water Heater contact 1-88, Monday - Friday from 8:00 AM to 8:00 PM EST. ![]() If your water heater was made prior to July 2019, please see below for the appropriate contact information. WATER HEATER SERIAL NUMBER LOOKUP CODEPlease be ready to provide your model number, serial number, date of purchase, installer name (if available), installer contact information (if available), problem description and fault code (Electronic Models Only). ![]() This article will guide you to the appropriate resource.įor product information, warranty, service and technical support on your water heater, call 1-80, Monday - Friday from 8:00 AM to 6:00 PM EST. Your source for product information, including warranty, service and technical support, on GE Appliances water heaters depends on the type of unit you have and when it was made. Water Heater - Product Information, Warranty, Service and Technical Support ![]()
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