I am assuming that everything was fine and then all of the sudden available hot water usage time dropped.
On a dual heating element hot water heater it can be
1. Internal tank loaded with sediment (drain and purge from lower garden hose fitting)
2. Thermostat or element problem with ONE of the 2 heaters. (Trouble shoot element thermostat)
3. Check Circuit breaker for partial trip of the breaker.
If you need more assistance or do not understand please comment so we can assist you.
Your hot water heater:
• EverKleen™ self cleaning device
• Brass drain valve
• Temperature and pressure relief valve included
• Isolated tank design reduces conductive heat loss
• High efficiency resistored heating elements
• Anode rod equalizes aggressive water action
• Electric junction box located above heating
elements for easy installation
• Over-temperature protector cuts off power in
excess temperature situations
• Automatic thermostat keeps water at desired
temperature
Thermostat PN's
• Therm-O-Disc Upper Thermostat (max 150 degree) & High
Limit (170 degree) - Two element non-simultaneous 208,
240, 277, 480 volt
(PN) SP11698 (single)
• Therm-O-Disc Lower Thermostat (max 150 degrees)
simultaneous and non-simultaneous 208,240,277,480 volt
(PN) SP11695 (single)
Elements range from 3000W to 4500W and vary in part number by the size of the hole that they are installed in.
If there is anything you need or expect at least provide some useful feedback.
Thanks
I realize this is a NEW water heater. That is why I mentioned checking the Circuit Breaker. A partially tripped CB can cause the symptom you speak of. i.e running on 115V power vs 230V power so the recovery time will be longer and it will be slow to keep up with demand.
In all honesty if you really think that there is a problem with the operation of the NEW hot water heater I would make the warranty call to Rheem.
Kelly
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