Question about Smith A.O. SMITH Cyclone XHE Natural Gas Commercial Water Heater BTH-120

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My A.O. Smith Cyclone X1 commercial water heater is displaying a "Low Ignitor Current" warning. Is this something I can do anything about, or will it require a service call?

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SOURCE: We have a AO Smith

This doesn't sound fun. I would call the AO Smith technical support number and they might be able to help you figure this out. I hope this helps.

Please vote for this answer. Thank you.

Posted on Aug 23, 2011

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1 Answer

Model # bth199100 low igniter current


Usually requires igniter replacement.
Here is a link to the troubleshooting page - says call service but details possible remedys...
Smith Vertex 100 Power Vent DV Series 120 Instruction Manual Fault And...

Jan 08, 2015 | AO Smith A.o. Smith Bth-199 Commercial...

1 Answer

Installation: Electrical Requirements


13Mb product manual is a big download ... electrical info page 13:
http://waterheatertimer.org/pdf/AO-Smith-Cyclone-gas-water-heater.pdf
http://waterheatertimer.org/pdf/AO-Smith-Cyclone-electrical-connection.pdf
Recommended both water heaters require dedicated single-phase 15 amp 120Volt line with correct polarity. This is 14 gauge wire and 15 amp breaker for each unit.
I would put both water heaters on surge protection and GFCI. Most water heaters are not protected from surge, and manual says line noise can affect operation of water heater.
Your local code would say if GFCI is required. Install GFCI breaker in main panel if required.
Install inline surge protector: Or add main breaker box protection.
http://www.amazon.com/dp/B003AU0Z48/?tag=waterheaterti-20

AO Smith service handbooks:
http://www.hotwater.com/resources/product-literature/service-handbooks/
Add a comment and say what you discover

May 17, 2013 | A.O. Smith BTH-199 BTH-199 100 Gallon...

1 Answer

AO Smith BTH 500 ignitor keeps burning out,is my electronic control the problem?


I would report problem to AO Smith.
Also ask question on pro water heater forum
http://www.thetankatwaterheaterrescue.com/forums/forum3/

AO Smith service handbooks:
http://www.hotwater.com/resources/product-literature/service-handbooks/
If the igniter is not turning off, then that would explain early failure, and it would be caused by the control chipset

Mar 21, 2013 | A.O. Smith BTH-500A BTH-500A 130 Gallon...

1 Answer

Says low igniter current


If it says low ignitor current the ignitor usually needs to be replaced. As the ignitor ages its current reduces because it is oxidizing. Eventually it will be detected by the control system that alerts you of the issue. If the control system were not designed to do this, soon it would not be able to ignite the gas. If this happened it could cause a dangerous condition such as a fire or explosion.
I hope this helps.

Sep 24, 2011 | Smith A.O. SMITH Cyclone XHE Natural Gas...

1 Answer

We have a AO Smith water heater Model CYCLONE X1 s/n - 0813A001865 we are having issues with this unit. The unit iwas purchased in 2008. Can you send me information on this water heater. Our plumber bought...


This doesn't sound fun. I would call the AO Smith technical support number and they might be able to help you figure this out. I hope this helps.

Please vote for this answer. Thank you.

Aug 22, 2011 | Smith A.O. SMITH Cyclone XHE Natural Gas...

1 Answer

I have a commercial water heater and on the screen it says "Blower Prover Open" and i have no hot water at any sinks.


The fan is not operating -- when this conditon exists, the unit will not fire up. Here's a link to the manual. The unit needs servicing.

http://www.hotwater.com/lit/im/com_gas/318556-000.pdf


Here are some excerpts from the manual relative to the blower prover and error msgs.



If the Blower Prover switch contacts do not close after the

Combustion Blower is energized the Control System will lock out and display Blower Prover Open


Blower Prover Open

Fault occurred 2 mins ago

The blower prover switch remains

open after the blower has been

energized.

Call a service professional:

Your Company Name Here

(press [DOWN] for more....)



These plastic sensing tubes must be routed to the correct sensing ports on the water heater. Sensing tube

routing should always be checked whenever Blower Prover Open, Blower Prover Failure, Blocked Air

Intake or Blocked Exhaust is displayed on the Control System LCD, see Figure 31 on page 29. These "Fault

Conditions" can be caused by incorrect sensing tube routing.




Charlie

Mar 20, 2011 | Smith A.O. SMITH Cyclone XHE Natural Gas...

1 Answer

A O Smith BTH 250 error code B2 Ignition Failure What next? (I cleaned the flame sensor.)


You need to check your hot surface ignitor. You do this by checking for continuity through it with all power off. If you need to replace this be very careful as it will break if you bump the box to hard. You should check all your limit switches at the same time. Good luck.

Dec 14, 2009 | Smith A.O. SMITH Cyclone XHE Natural Gas...

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