TROUBLESHOOTING GUIDELINES

WATER HEATER CONTROL

TROUBLE SHOOTING

Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician.

Read the GENERAL SAFETY INFORMATION section first.

INTELLI-VENT TROUBLESHOOTING CHART - USER CONTROL

 

#

LED STATUS

PROBLEM

 

SOLUTION

 

15

B C D E F

The self-diagnostic test determined resistance

1.

Turn off power to the water heater.

 

 

of the black resistor wire on ignitor assembly

2.

Unplug the ignitor assembly plug from the control. Check

 

 

 

plug is not within tolerance.

 

 

 

 

the resistance of the black resistor wire between pins

 

 

 

 

 

 

 

 

 

 

3 & 4 with an ohm meter. 2.1 If the reading taken is more

 

 

 

 

 

than 100,000 (50,000 for data code before 0616; 70,000

 

 

 

 

 

for data code 0617 through 0709) ohms replace the ignitor

 

 

 

 

 

assembly. 2.2 If the reading taken is less than 100,000

 

 

 

 

 

(50,000 for data code before 0616; 70,000 for data code

 

 

 

 

 

0617 through 0709) ohms replace Intelli-Vent™ control.

 

16

B C D E F

Air pressure switch circuit is opening

1.

Ensure air pressure switch hose is not kinked or clogged;

 

 

repeatedly during one heating cycle. May be

 

ensure the blower housing is clear of any condensation.

 

 

 

caused by air pressure switch and/or the vent

2.

Check vent temperature limit switch - if it is determined

 

 

 

temperature limit switch (these two switches

 

 

 

are wired together in a “series” circuit).

 

that the vent temperature limit switch is opening its

 

 

 

 

 

contacts at normal operating temperatures during heating

 

 

 

 

 

cycle - replace the vent temperature limit switch.

 

 

 

 

3.

Ensure water heater is not over-firing. 3.1 Check burner

 

 

 

 

 

orifice size and ensure the correct orifice is installed;

 

 

 

 

 

replace as necessary. 3.2 Check manifold gas pressure

 

 

 

 

 

and ensure it is within 0.3” W.C. (75 Pa) of listed rating on

 

 

 

 

 

Intelli-Vent™ control valve. Manifold gas pressure is

 

 

 

 

 

non-adjustable, if manifold gas pressure is off by more

 

 

 

 

 

than 0.3” W.C. (75 Pa), replace the Intelli-Vent™ control.

 

 

 

 

4.

Ensure condensate lines are not obstructed. Check and

 

 

 

 

 

clear all condensate lines including the floor condensate

 

 

 

 

 

drain line.

 

 

 

 

 

 

 

 

 

 

 

 

37

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Image 37
A.O. Smith BTX-80 SERIES 100 Unplug the ignitor assembly plug from the control. Check, Plug is not within tolerance
Page 36 Page 38

BTX-80 SERIES 100 specifications

The A.O. Smith BTX-80 Series 100 is a cutting-edge heating solution designed for effective and efficient water heating. This model is particularly well-suited for residential applications, offering an impressive balance of performance and energy efficiency.

One of the standout features of the BTX-80 Series 100 is its innovative design, which incorporates a high-efficiency condensing technology. This allows the unit to capture and utilize heat that would otherwise be lost in traditional systems, thereby maximizing energy usage and reducing overall operating costs. With an impressive energy factor (EF) rating, this water heater contributes to lower utility bills while promoting environmental sustainability.

The BTX-80 is equipped with a powerful 80-gallon tank, providing ample hot water for households of varying sizes. Its large capacity ensures that multiple appliances can operate simultaneously without running out of hot water, making it an ideal choice for families with high demand. The model also incorporates a robust heating element that ensures rapid recovery and maintains consistent water temperatures.

Safety and convenience are paramount in the design of the BTX-80. It features a comprehensive digital control system that allows users to set precision temperature settings according to their needs. The intuitive interface simplifies adjustments and monitoring, while safety mechanisms like temperature and pressure relief valves provide peace of mind during operation.

A.O. Smith has also prioritized quality and durability in the construction of the BTX-80 Series 100. The tank is made from high-quality materials and comes with a robust enamel coating that resists corrosion and extends its lifespan. Additionally, the unit is backed by a lengthy warranty, reflecting the manufacturer's confidence in its longevity.

Installation and maintenance are straightforward with the BTX-80, as it is designed to fit seamlessly into existing plumbing configurations. Furthermore, the unit operates quietly, ensuring minimal disruption in the home environment.

In conclusion, the A.O. Smith BTX-80 Series 100 stands out in the market as a reliable, energy-efficient, and user-friendly water heating solution. With its advanced technologies and emphasis on safety and durability, it proves to be a smart investment for any household looking to improve their hot water system.
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