50 ao smith power venter

Smith GAS WATER HEATER Installation Instructions And Use Care Manual...

Maybe this error code chart for AO Smith Power vent will help you figure it out. Also link to AO Smith website. Good luck. J

https://www.hotwater.com/support/gpvh-50

Low gas pressure, dirty combustion parts, bad gas control valve.
Following link has power vent troubleshoot:
http://waterheatertimer.org/power-vent-water-heater-troubleshoot.html

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

You need to change the elements out

I suspect a bad thermocouple

Copy following link
http://waterheatertimer.org/pdf/AO-Smith-heat-pump-service-manual-321547.pdf

Contact AO Smith for qualified technician in area.
Don't buy expensive water heaters.

Gene
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If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

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

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

21dv50 is discontinued. This is ordinary tank-type 50 gallon gas water heater.
Amazon sells 50 gallon 22V50F1 Rheem water heater for $420 with free shipping ... but who carries the warranty?

Frankly you can get in-store returns, and buy same quality gas water heater at local box store since Rheem makes GE water heaters at home Depot.
Other brands are equally good, as AO Smith makes Kenmore water heaters at Sears and Whirlpool at Lowes.

I prefer the AO Smith because maintenance is easier.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

FPSH series is a power vented residential gas water heater.

1) The blower is plugged into 120Volt outlet. If blower has short, then it will trip breaker.
Blower could be Fasco model 7021-10195, or 7021-10770. Call AO Smith: 1-800-527-1953. They will need model number and serial number located on label on side of tank.

2) Before calling AO Smith, check outlet with circuit analyzer. Outlet must have correct polarity and must be grounded. Unplug cord to water heater and run continuity test from ground prong on electrical plug to manifold tube on gas valve.

3) Also if a fluorescent light fixture is on the same breaker, that can cause burner to short cycle.

4) Connect water heater to different outlet and see if problem continues.

5) AO SmIth has service manuals for the FPSH series that download to your computer:
http://www.hotwater.com/resources/product-literature/service-handbooks/

This system uses an electrical test to make sure that the burner is lit. The flame sensor will either be broken or will be covered in deposits (clean with an emery cloth).

The flame sensor is usually a small metal rod that would be in the direct line of fire of the burner with 1 wire attached.

CAUTION:

The ignitors can be very fragile and are expensive. They are very brittle, do not touch it.