To Next PageTo Next PageHow to increase hot water on A.O. Smith Vortex HPTU-50 Water Heater?
If you're experiencing insufficient hot water or slow hot water recovery with your A.O. Smith Water Heater, try increasing the temperature set point. Refer to the 'Adjusting the Temperature' section on page 16 of your manual.
Why is A.O. Smith Vortex HPTU-50 Water Heater temperature too high?
If the water temperature from your A.O. Smith Water Heater is too high, it may be due to a non-functioning thermostat, a grounded/shorted heating element, or a faulty thermostatic mixing valve. For a non functioning thermostat, replace the ECO (page 30). For a grounded/shorted heating element, replace the heating element (page 29). For a faulty thermostatic mixing valve, check hot water at other faucets.
Why does my A.O. Smith Vortex HPTU-50 smell bad?
If the water from your A.O. Smith Water Heater smells bad, it might be due to a concentration of sulfate in the supply water, little or no dissolved oxygen in the water, sulfate reducing bacteria, or an excess of active hydrogen in the tank. Contact a qualified person for replacement of anode.
General| Capacity | 50 gallons |
|---|---|
| Energy Factor | 0.95 |
| Voltage | 240 V |
| Diameter | 22 inches |
| Weight | 150 lbs |
| Wattage | 4500 W |
| Model | HPTU-50 |
| Type | Heat Pump Water Heater |
| Fuel Type | Electric |
| Warranty | 10 years |
Explains safety symbols (DANGER, WARNING, CAUTION, NOTICE) and advises keeping the manual accessible.
Details risks like electric shock, lifting, and scalding during installation and operation.
Covers hazards of fire, explosion, and hydrogen gas buildup when the unit is unused.
Outlines initial steps: review instructions, check local codes, and gather tools/supplies.
Lists optional but recommended accessories for a proper installation.
Checks home's water pressure and thermal expansion requirements before installation.
Ensures the installation site is suitable, level, and safe, considering leaks and temperature.
Step-by-step guide to safely disconnect, drain, and remove the existing unit.
Instructions for positioning, securing the new water heater, and preliminary checks.
Guides on connecting condensate pump wiring and installing drain lines.
Instructions for T&P relief valve installation and installing shutoff/mixing valves.
Connecting water supply, verifying connections, and filling the tank.
Safe electrical hookup procedures and initial unit start-up.
How to set temperature, select operating modes, and perform post-installation reviews.
Lists codes for unit diagnostics, heat pump status, elements, and sensors.
Codes related to power supply, voltage, pump pressure, compressor, and EEPROM.
Chart linking common problems like 'No Hot Water' to causes and corrections.
Steps to check electrical power, heating elements, and ECO for no hot water.
Solutions for T&P drips, water odor, high/low temperature, and pressure problems.
Explains common sounds and causes for insufficient hot water or slow recovery.
Importance of regular maintenance, draining, and flushing the tank.
Procedures for replacing faulty heating elements and the ECO switch.
Maintaining T&P valve, cleaning air filter, and cleaning condensate drain.
Lists all available replacement parts with item numbers and how to order them.
