AO Smith Water Heater Repair Troubleshooting

Product Support Looking for out of production models? Visit the Product Support section. Back To Product Literature Instruction Manuals Commercial Gas Commercial Electric Commercial Heat Pump Commercial Tankless Commercial Oil Fired Commercial Boilers Pump & ExpansioA.O. Smith is a trendsetter in the field of advanced water heating products and technologies. A good example developed entirely in-house, is our patented PermaGlas Ultra Coat enameling: a glass protective layer on the interior surface of the steel tank, ensuring maximum corrosion resistance and a long lifetime of the appliance.I need help with AO Smith water heater troubleshooting.There are Craftmaster-AO Smith water heaters sold with the Whirlpool label.If my hot water heater hadAo Smith Water Heater Repair . Ao Smith Water Heater Problems . Smith Tankless Water Heater. Ao Smith Hot Water Heater Troubleshooting. Latest News from. An Expert Review of AO Smith Gas Water Heater with the tankless and condensing technology for residential water heating. About A. O. Smith | A. O. Smith Corp.A. O. Smith is proud to be known as one of the world's leading providers of water heating and water treatment solutions. As a leader, we refuse to sit quietly. Each and every day at A. O. Smith, we are working on developing state-of-the-art solutions that are pushing new boundaries and paving the way in our industry.

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Smith Water Heaters (the warrantor) will furnish the ORIGINAL OWNER, 1) a replacement A. O. Smith water heater of equivalent size and current model if the glasslined tank in this water heater leaks and, 2) a replacement part for any component part which fails.Contact information T: 0870 267 6484 F: 0870 267 6485 E: sales@aosmith.co.uk Availability Our Technical Support staff is available from Monday to …On‐Demand Water Heater Troubleshooting Guide 9/12/11 321922‐000 A.O.Smith Water Products Company 500 Tennessee Waltz Parkway Ashland City, TN 37015 Toll Free: 1‐877‐737‐2840 Becoming familiar with how a tankless water heater normallyA. O. Smith University is a free online training site that offers certification and continuing education courses on residential and commercial water heating products. The classes are video-based courses that can be taken on a PC, Mac, or mobile device equipped with speakers and a high-speed internet connection.

AO Smith Water Heater Troubleshooting - YouTube

In most circumstances, the heater should be set to its default of 122°F. Hard Water Problems: In areas where the water is very hard with high levels of calcium and magnesium (about 7+ grains per gallon on residential application), Takagi recommends that the water be treated with a water softener or some other de-scaling device. Do not use aWater Heater Troubleshooting Enter Zip & Get 3 Free Local QuotesTankless Water Heater Troubleshooting Tips . If you find yourself faced with any of these tankless water heater problems, continue reading for troubleshooting tips. 1. Changes in water quality Check online or call your local water plant to see if there have been any recent changes in water quality. You can also request your water be tested toNo hot water is one of the most common problems in water heating systems. The first things you should check are the correct supply of electricity, water, and gas to the water heater. Make sure that the shut-off valve, is not closed. Check the gas burner and does the flame rod generate sparks when the unit is turned on.Are You In Need Of Hot Water & Need A Replacement Fast? Don't Wait, Call Us Now.

What occurs when you flip on the sizzling water tap and all you get is cold water? Maybe you pass to take a sizzling shower and in finding your water heater has failed. Not having fast get right of entry to is frustrating, to mention the least!

And it doesn't help to find a mysterious water heater code flashing at you either. Don't concern — we're here to assist with tips on figuring out those AO Smith tankless error codes.

Time to look at those error codes, what they mean, and steps you'll be able to take to troubleshoot them. Some you can fix yourself, however others need a qualified technician.

Table of Contents

Where Can I Find the Error Code?

With this emblem of tankless water heater, the display of the error codes isn't the same as style to type.

Some fashions, like the 240, 340 and 540 collection, have a remote keep an eye on which can show an error code and alert you that something is mistaken. These fashions will even show the error code on the LED display on the appliance, where you'd in most cases see the temperature.

The 510 sequence will show the error code at the LCD show. Other models, like the 110 and 310, will display a flashing crimson gentle at the appliance. It blinks for a different collection of occasions depending at the error.

You can take a look at your owner's manual to look what type you may have and the place to find the error code.

AO Smith Tankless Error Codes and Troubleshooting

Assuming that your water heater has been installed correctly in step with the manufacturer's specifications, those are the mistake codes you'll see.

For each and every error, we point out:

The numbers for the far off regulate The LED show numbers Amount of occasions the light will blink

BE AWARE

Water heaters are powered through fuel and electric. Please flip them off prior to doing any repairs so you don't hurt your self (1). Remote 03, LED 031, Light Blinks 1x What It's Telling You The dip transfer settings aren't right kind. The Solution Disconnect the ability: Turn off the facility provide. Check the dip switches: Remove the front cover and find the dip switches. They'll be on the heart of the computer board. Make positive the settings are right kind, consistent with your users manual. Remote 10, LED Display 101, Light Blinks 5x What It's Telling You This is a caution code for strange combustion. The Solution Air drift: Check the venting for obstructions like chicken nests, leaves, etc. Check clearance: Exhaust and intake terminals wish to have the correct clearance between them. Clean: Check for filth or grease in the fan motor and gasoline burner, and clean if essential. Make positive the intake is free from dust and grease. Remote 11, LED Display 111, Light Blinks 3x What It's Telling You There is an ignition failure where the unit doesn't fire up after three failed attempts. The Solution Check connections: Make sure the hi-limit transfer is operating correctly and that there are no free wires or connections. If it has tripped, flip the ability off and reset it however call out provider to determine why it's tripping. Flame rod: Make positive this is loose from soot. Computer board: Check that the computer board isn't damaged and there aren't any free wires or connections. Remote 12, LED Display 121, Light Blinks 3x What It's Telling You There is a loss of flame during operation. The Solution Tripped transfer: Make sure the hi-limit switch hasn't tripped. Computer board: Verify the pc board settings are correct, in step with your homeowners manual. Obstructions: Check there's no blockage within the gas provide, and that the gas is on and at the right force. Look for blockages within the vents. Remote 31, LED Display 311, Light Blinks 2x What It's Telling You There's a failure within the outlet thermistor. The Solution Connections: Ensure the thermistor wiring connection is excellent and there's no injury. Clean: Check the thermistor for dirt or particles and blank if necessary. Change out portions: If the code error persists, exchange the outlet thermistor. Remote 32, LED Display 321, Light Blinks 2x What It's Telling You There's a failure within the inlet thermistor. The Solution Connections: Inspect the thermistor wiring, make sure the relationship is good and there's no injury. Clean: Check the thermistor for dirt or particles and blank if essential. Change out parts: If the code error persists, substitute the inlet thermistor. Error Code: 331, Light Blinks 2x What It's Telling You There's a failure in the blending thermistor. The Solution Connections: Check the thermistor wiring, be certain the connection is good and there's no damage. Clean: Check the thermistor for grime or debris and blank if vital. Change out portions: If the code error persists, exchange the blending thermistor. Error Code: 341, Light Blinks 2x What It's Telling You The exhaust thermistor has failed. The Solution Connections: Check the thermistor wiring, ensure the relationship is just right and there's no damage. Clean: Examine the thermistor for filth or debris and clean if essential. Change out parts: If the code error persists, trade replace the exhaust thermistor. Remote 39, LED Display 391, Light Blinks 2x What It's Telling You The air-fuel ratio rod (AFR) is erroneous. The Solution Connections: Make certain the wiring is attached properly and isn't damaged. Clean: Check the AFR rod for soot and clean if essential. Error Code: 441, Light Blinks 2x What It's Telling You There's a subject matter with the glide sensor. This happens when you have a couple of heater hooked up and the master unit signals some other heater to start and it fails. The Solution Connections: Verify the heater that has failed has a water provide. Ensure the wires to the computer board aren't damaged. Air waft: Make positive the inlet filter is freed from particles Clean: Check that the waft sensor has no dust on it. Remote 51, 55, LED Display 510, 511, Light Blinks 6x What It's Telling You There's an issue with the fuel solenoid valve.

WARNING

If the new water is off but you can still see flames within the equipment, flip off the gasoline and power instantly. Call a carrier technician. The Solution Check for harm: Make certain the wires to the gasoline valve assembly aren't broken. Test drive ranges: Ensure the fuel pressure is at the proper stage. Remote 61, LED Display 611, Light Blinks 4x What It's Telling You The fan motor is misguided. The Solution Damage: Check the wiring to the fan motor for harm and the PC board for burn marks or moisture. If there is moisture, let it dry completely before turning the power again on. Clean: Make sure there's no water or dust in the fan housing or on the motor. If there is, dry or clean it. Change parts: If the error persists, the pc board would possibly want changing. Error Code: 651, Light Blinks 4x What It's Telling You There's a misguided go with the flow adjustment valve. The Solution Damage: Check the wiring to the float adjustment valve for damage or breaks. Inspect for leaks: Make positive the valve isn't leaking. Clean: See if there's any build-up on the valve and clean it. Replace portions: If it will probably't be wiped clean, exchange out the valve. Error Code: 661, Light Blinks 4x What It's Telling You There's a fault with the bypass valve. The Solution Damage: Check the wiring to the glide adjustment valve for damage. Clean: Make certain there's no scale build-up on the motor force. Leaks: Check for water leakage from the valve. Remote 70, LED Display 701, Light Blinks 1x What It's Telling You The laptop board is experiencing an issue. The Solution Connections: Check there are no breaks in the wires and that they are attached correctly. Damage: Inspect the board intently. Can you notice burn marks? Power: Make sure there's a power provide to the unit. Error Code: 711, Light Blinks 1x What It's Telling You There's a failure in the fuel solenoid valve pressure circuit, hi-limit valve or overheat bring to an end transfer. This code might seem in place of codes 111 or 121. The Solution Damage: Check the hi-limit transfer and overheat cut-off transfer for twine injury. Connections: Inspect the keep watch over board connection for the gas valve. Remote 72, LED Display 721, Light Blinks 6x What It's Telling You There's a false flame detection. The Solution Power: Firstly, turn off the ability. Check the condensate drain: Make positive it's put in at the warmers vent collar. Leaks: Inspect the applying for leakage from the heat exchanger. If doubtful: The issue may well be the flame sensor, however simply in case it isn't, you will have to name a service technician. Remote 74, LED Display 741 and 751 What It's Telling You There's miscommunication between the far flung controller and the water heater. This can occur in the event you disconnect the faraway from the heater whilst the power supply is on. The Solution Power: Turn the ability off sooner than disconnecting the far off. Connections: Check the connections between the far off and the water heater. Make sure you've gotten the proper far flung controller. Check for an influence surge: Look for indicators like burnt out wires or damaged control board. A minor surge or outage might cause LCD displays to flash the place power has been misplaced. Error Code: LED Display 761 What It's Telling You There's a miscommunication between warmers in an Easy-Link gadget. The error code will seem at the master heater and can point out which heater is at fault. The Solution Check the power: Make certain the heater that has misplaced verbal exchange has power. Make positive the units are "speaking" to each other: Check that the communication system is as it should be set up in step with your person guide. Remote 99, LED Display 991, Light Blinks 5x What It's Telling You There's wrong fuel combustion. The Solution Make positive the altitude atmosphere is right kind: Check the water heater is ready for the fitting elevation. Blockages: Ensure there are not any obstructions within the venting machine. Check the clearance: Verify the consumption and exhaust are the correct distance aside. Clean: Look for grease, dust or particles on the fuel burner or fan motor and remove them.

May the Flow Be with You…

Now you know slightly extra about AO Smith tankless error codes, you'll start solving any issues your self. Just have in mind, name a carrier technician when you aren't positive about the rest. When fuel and electrics are involved, safety is paramount.

We hope you discovered our information useful and informative. Please depart us a remark with any pointers or questions, and don't put out of your mind to share with any other AO Smith proprietor!

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