A.O. Smith FMD 50, FMD 40, FMD 30 Leakage Checkpoints, Drain Valve Washer Replacement, Service

Page 25

6.CLOSE the drain valve.

7.Follow instructions in the “Filling The Water Heater” section.

8.Follow the lighting instructions on the label or see page 20 under “Lighting Instructions” to restart the water heater.

DRAIN VALVE WASHER REPLACEMENT

(See Figure 40)

1.Turn “OFF” gas supply to water heater.

2.Follow “Draining” instructions.

3.Turning counterclockwise ( ), remove the hex cap below the screw handle.

4.Remove the washer and put the new one in place.

5.Screw the handle and cap assembly back into the drain valve and retighten using a wrench. DO NOT OVER TIGHTEN.

6.Follow instructions in the “Filling The Water Heater” section.

7.Check for leaks.

8.Follow the lighting instructions on the “Lighting & Operating Label” section to restart the water heater.

FIGURE 40.

SERVICE

If a condition persists or you are uncertain about the operation of the water heater contact a service agency.

Use this guide to check a “Leaking” water heater. Many suspected “Leakers” are not leaking tanks. Often the source of the water can be found and corrected.

If you are not thoroughly familiar with gas codes, your water heater, and safety practices, contact your gas supplier or qualified installer to check the water heater.

LEAKAGE CHECKPOINTS

Read this manual first. Then before checking the water heater make sure the gas supply has been turned “OFF”, and never turn the gas “ON” before the tank is completely full of water.

A.*Condensation may be seen on pipes in humid weather or pipe connections may be leaking.

B.*The anode rod fitting may be leaking.

C.Small amounts of water from temperature-pressure relief valve may be due to thermal expansion or high water pressure in your area.

D.*The temperature-pressure relief valve may be leaking at the tank fitting.

E.Water from a drain valve may be due to the valve being slightly opened.

F.*The drain valve may be leaking at the tank fitting.

G.Combustion products contain water vapor which can condense on the cooler surfaces of the tank. Droplets form and drip onto the burner or run on the floor. This is common at the time of start-up after installation and when incoming water is cold.

H.Water in the water heater bottom or on the floor may be from condensation, loose connections, or the relief valve. DO NOT replace the water heater until a full inspection of all possible water

sources is made and necessary corrective steps taken. Leakage from other appliances, water lines, or ground seepage should also be checked.

*To check where threaded portion enters tank, insert cotton swab between jacket opening and fitting. If cotton is wet, follow “Draining” instructions in the “Periodic Maintenance” section and then remove fitting. Put pipe dope or teflon tape on the threads and replace. Then follow “Filling the Water Heater” instructions in the “Installing the New Water Heater” section.

FIGURE 41.

25

Page 24 Page 26
Image 25
Page 24 Page 26
Contents For USE only in Manufactured Homes Residential Direct Vent GAS Water HeatersImportant Definitions Safe INSTALLATION, USE and ServiceGeneral Safety Introduction Table of ContentsThermostat Shield Optional Typical InstallationHotter Water can Scald Facts to Consider about the Location Locating the NEW Water HeaterInsulation Blankets Water Heater Installation Installing the NEW Water HeaterBasement or crawl space Securing Water Heater to Floor and WallRoof Jack Installation ALL Models ALL 50 Gallon 189.27 Liter ModelsHRS Movement Complete Joint SETValve and Pipe Insulation Water PipingTEMPERATURE-PRESSURE Relief Valve GAS Piping Filling the Water HeaterFor 30 Gallon Heater Sediment TrapsFor 40 Gallon Heater For 50 Gallon HeaterPage For 30 Gallon Heater Page For Your Information Temperature RegulationStart UP Conditions CondensateOperational Conditions Burner Cleaning Periodic MaintenanceVenting System Inspection Burner InspectionDraining Anode ROD InspectionWater system. Check for any leaks Immediately correct any if foundService Drain Valve Washer ReplacementLeakage Checkpoints Troubleshooting Guidelines Metal Drain PAN Thermostat Shield Manifold Assembly Repair Parts ListPage Page UNE NON ET Rechange DE Pièces DE Liste UNE EST Ceci Rechange DE Pièces DES ListeSuie DE Formation Dépannage DE DirectivesFuites DE Vérification DE Points LA DE Rondelle LA DE RemplacementVidange DE Soupape Trop PAS’ANODE Tige LA DE Inspection Entretien Périodique EntretienBrûleur DU Inspection Brûleur DU Nettoyage .37 FigureFonctionnement DE Conditions Température LA DE Régulation Information Votre PourDémarrage DE Conditions CondensationMort la ou corporelles blessures des matériels ’APPAREIL Vers GAZ LE CouperGallons 50 DE EAU-CHAUFFE UN Pour Naturel GAZ AU .L.P Propane GAZ DUGallons 40 DE EAU-CHAUFFE UN Pour EAU-CHAUFFE Gallons 30 PourCe jusqu’à 19 à 9 étapes les30 Figure Voir basse, plus la position sa à Droite la vers tournéSédiments À Trappes Modèle DU Signalétique Plaque LA SUR Listé Celui QUEGallons 30 DE EAU-CHAUFFE UN Pour GAZ DE Conduite Remplacement le requiert Ceci .supplémentaire pieds 000 1 mEAU-CHAUFFE LE Remplir Et eau,-chauffe le dessert qui gaz en d’alimentationPression DE ET Température DE Décharge DE Soupape ’EAU Canalisation DE Réseau PrudenceTuyaux DES Isolation ET P & T DE Soupape Potable non d’eau système un à pas connectez NeDE Joints DES Pour Approximatif Prise DE Temps Complet Joint DU Tableau JEU MouvementRaccords LES ET Cpvc OU ABS PVC, Tuyau LE Cimenter Gallons 50 Litres 189,27 Modèles LES Tous Modèles LES TousPente en toit un sur utilisation Cheminée DE Trémie LA DE InstallationMUR AU ET Plancher AU EAU-CHAUFFE LE Fixer EAU-CHAUFFE DU Installation EAU-CHAUFFE Nouveau LE InstallerDe l’air blessures, des éviter Pour Blankets InsulationDétectée est fuite la lorsque ’EMPLACEMENT DE Sujet AU Considérer À Faits EAU-CHAUFFE Nouveau DU L’EMPLACEMENT Choisir» eau-chauffe nouveau le Installer « section la dans Respectés être doiventÉbouillanter Peut Chaude Plus L’EAU DE Typique InstallationGAZ AU Modèles EAU-CHAUFFE Votre Connaissez Matières DES Table ’INSTALLATION Pour Préparer SEGénérale Sécurité Importantes Définitions Entretien ET Utilisation .SÉCURITAIRE InstallationEAU-CHAUFFE LE SUR 000-15795 Pièce DE .NO Unis-États AUX ImpriméEAU-CHAUFFE CE PAR Utilisé GAZ AU Ajouté EST Odorisant UN

FMD 40, FMD 50, 315795-000 MH, FMD 30 specifications

A.O. Smith is a renowned brand in the field of water heating solutions, offering a range of efficient and durable water heaters tailored to meet diverse consumer needs. Among its extensive lineup, the A.O. Smith FMD series showcases several commendable models, including the FMD 30, FMD 40, and FMD 50, each boasting unique features and advanced technologies.

The A.O. Smith FMD 30 is a compact water heater designed for smaller households or limited spaces. With a 30-gallon capacity, it is engineered to provide ample hot water for everyday needs such as bathing, washing dishes, and laundry. The heater employs advanced insulation technology, ensuring heat retention and energy efficiency. The thermostatic control system allows users to easily adjust the water temperature to their preference, ensuring comfort while promoting safety.

Moving to the A.O. Smith FMD 40, this model offers an increased capacity of 40 gallons, making it an ideal choice for medium-sized families. It incorporates A.O. Smith’s cutting-edge Durapower glass coating, which protects the tank from corrosion, ultimately extending its lifespan. The FMD 40 also features an enhanced heating element design that ensures rapid heating and consistent water temperature, making it perfect for bustling households.

The A.O. Smith FMD 50 takes things a step further, providing 50 gallons of hot water storage and designed for larger families or high-demand applications. This model integrates advanced technology features like a smart thermal control system that optimizes energy usage, ensuring that hot water is available when you need it without unnecessary power consumption. With robust construction materials, the FMD 50 is built to last, even in harsh conditions.

All models in the A.O. Smith FMD series prioritize user convenience. They come equipped with easy-to-read digital displays for monitoring temperature and status, along with built-in safety features such as automatic shut-off mechanisms. Installation is straightforward, and each unit adheres to energy efficiency standards, which help reduce utility bills while being environmentally friendly.

In summary, the A.O. Smith FMD series, including the FMD 30, FMD 40, and FMD 50, represents a commitment to quality and innovation. With their varying capacities and advanced technologies, these water heaters cater to a wide range of household needs, delivering reliable hot water solutions while maintaining energy efficiency and durability. Investing in an A.O. Smith FMD water heater not only guarantees comfort but also highlights a commitment to sustainability.
Top Page Image Contents