Atmor AT-910-18TP User Manual (English)

Questions and Answers:

A
Alyssa DavisJul 25, 2025
Why is my Atmor AT-910-18TP Water Heater not hot enough?
- W
  williamsclaytonJul 25, 2025
  If your Atmor Water Heater is producing water that is not hot enough, you can reduce the water flow rate at the faucet or slightly close the shutoff valve on the unit’s incoming water supply line. You may also increase the temperature setting on the unit. Ensure the shutoff valve is fully open, and the water supply line is not blocked. If you have an anti-scald feature on your faucet that is mixing cold water, these types of faucets can usually be adjusted to reduce the amount of cold water mixed. If you need/ want hotter water, you can compensate for thermal loss due to long pipe run by increasing the setting on your water heater.
X
xhortonJul 29, 2025
What to do if Atmor AT-910-18TP water is too hot?
- J
  Jared ChaseJul 29, 2025
  If the water from your Atmor Water Heater is too hot, try increasing the flow rate at the water outlet or switch to a lower temperature setting. Also, check for too little flow, or if the set point temperature is too high.
C
carolyn47Aug 2, 2025
Why does my Atmor Water Heater shut off during use?
- N
  natasha71Aug 2, 2025
  If your Atmor Water Heater shuts off during use, check the power supply and circuit breakers.
D
Derrick BellAug 7, 2025
Why does the water temperature vary from hot to cold during Atmor Water Heater use?
- W
  williamsjonathanAug 7, 2025
  If the water temperature from your Atmor Water Heater varies from hot to cold during use, increase the flow rate from the water supply source.
M
Meghan ChandlerAug 11, 2025
How to fix Atmor AT-910-18TP Water Heater when there is no hot water and display does not light up?
- O
  olsonrachelAug 11, 2025
  If your Atmor Water Heater isn't producing hot water and the display isn't lighting up, start by checking your power supply and circuit breakers. Ensure the breakers at your main electrical panel are on and that the unit is correctly wired. Also, verify the shutoff valve on the incoming water supply line is fully open. Make sure that the flow rate needed to activate the heating element (0.5 gpm) has been reached, increase the flow rate from the water supply source and clean the filter screen on the unit’s water inlet.
S
Sandra TurnerAug 16, 2025
What to do if Atmor AT-910-18TP has no hot water and display does light up?
- A
  Alexis Fox DVMAug 16, 2025
  If your Atmor Water Heater is not producing hot water but the display does light up, refer to manual (Page 18) for diagram of reset points. Make sure to shut all power on your breaker panel before attempting to reset unit. All resets must be pressed. For potential internal part failure, please call us for further technical assistance.
R
Robin VaughnAug 20, 2025
Why did the water stop flowing from my Atmor AT-910-18TP Water Heater?
- S
  scooperAug 20, 2025
  If water stops flowing from your Atmor Water Heater, make sure the main water line valve is fully open, and there are no obstructions in the water supply line.

Atmor AT-910-18TP Specifications

General

Model Number	AT-910-18TP
Power Source	Electric
Power	18 kW
Voltage	240 V
Amperage	75 A
Wattage	18000 W
Activation Flow	0.5 GPM
Type	Tankless Water Heater
Temperature Rise	35°C