Bosch Appliances WR430-3K manual No Spark AT the Pilot, Adjusting Screw, Stops sparking

Page 17

NO SPARK AT THE PILOT

1. ON/Off switch is not “On” (Position I).

The On/Off switch is located behind the flipdown cover plate on the front panel strip. See fig. 10.

2. Water flow is not sufficient to activate heater.

Water flow rate at faucet is below minimum flow needed to activate heater. When temperature adjustment knob is turned all the way clockwise, the Bosch WR430-3K requires 1/2 gallon per minute flow to activate the heater. As a reference, this is a flow which would fill a quart jar in 30 seonds. If the temperature adjustment knob is turned fully counterclockwise, a flow rate of 1.1 gallons/minute is required to activate the heater.

3. Water inlet filter is clogged

Water flow is restricted, preventing needed flow to activate heater. Clean water inlet filter screen.

4. Cross over in water lines

To confirm there is no cross-over in the plumbing, shut off the cold water supply to the Bosch water heater and open a not water faucet. There should not be any water flowing at that faucet. Water running is a sign of a plumbing cross over. Consult your plumber.

5. Microswitch needs to be adjusted or replaced.

If you do not hear a click when a tap is opened, the microswitch needs to be adjusted. See Fig 15 for adjustment. Replace the microswitch if the adjustment does not solve the problem.

Fig. 15 - Microswitch Adjustment

ADJUSTING

SCREW

Pilot does not spark with

Pilot is always sparking

water flow

without water flow

1

Close water tap

1

Close water tap

2

Remove screw cap and

2

Screw in adjusting screw, till it

 

unscrew adjusting screw til

 

stops sparking

 

sparking starts

3

Continue to screw in turning

3

Screw in turning one and

 

one and a half turns more

 

half turns more

 

 

4

Replace screw cap

 

 

 

 

 

 

7.Cold incoming water connection made to wrong side of heater

Make sure cold water inlet connection is on the right side of heater when you are facing heater.

8.Water valve parts may be dirty of components damaged First check that venturi is free of dirt particles. Water valve and component parts must be totally free of dirt. In hard water areas, mineral deposits can eventually (3-5 years in hard water areas) corrode the water valve parts to a point where they will need replacing. Any sign of moisture at the top of the water valve is a sign that the water valve needs to be serviced immediately.

9.Loose connection at the ECO

Ignition sparker will not operate if the electrical circuit is interrupted. Check that the connections to the ECO are secure and tighten if necessary.

SPARKS APPEAR AT PILOT WHEN HOT WATER TAP TURNED ON, BUT PILOT AND BURNERS WILL NOT IGNITE

1. Air in the Gas Line

Normally this is a problem at time of initial installation, after the pipes have been worked on, or after a gas supply line has been allowed to empty. Bleed the air trapped in the gas line by turning the hot water faucet on and off until the air has been cleared from the line.

2. No gas to the Bosch

A. Gas cock on gas line may not be open

B. Gas regulator may be shut or damaged. Replace or unjam the regulator. Note: The regulator furnished with the heater is exclusively designed for low gas pressure. Excessive pressure will lock it up. Jamming usually happens when using propane gas if the gas pressure between the gas tank and the water heater’s gas regulator has not been reduced. See Page 14 for recommended correct gas pressure. To unjam a regulator, consult your gas supplier.

3. Pilot orifice or gas valve is dirty

Clogging of the pilot burner can be caused by dust in the air or dirt in the gas. The pilot orifice or gas filter may need to be cleaned or replace.

4. Water valve assembly needs to be checked

If the pilot orifice is clean, the water valve assembly should be checked. The adjustment screw on the water valve micro- switch may not be tight enough (Fig. 15). Remove central cap beneath micro-switch assembly, carefully loosen the adjustment screw until the pilot light ignites. At that point retighten the screw one and a half turns.

5.Pilot electrovalve switch may need to be replaced (See Fig 17).

Call your service person or call: Canada 1-800-663-8405, U.S.A. 1.800-824-7337.

6.Electronic Control Box may need to be replaced, (See Fig 17).

Call your service person or call: Canada 1-800-663-8405, U.S.A. 1.800-824-7337.

17

Page 16 Page 18
Image 17
Page 16 Page 18
Contents What to do if YOU Smell GAS Instantaneous gas water heaterNAT. GAS Propane FeaturesUnpacking the Bosch WR430-3K Heater Reduced 4% for each 1,000 feet above sea level. See DimensionsAIR Requirements LocationElectrical Mounting ClearanceGeneral Information IntroductionGeneral Venting Information Sizing & DistancesApproved Venting Materials General Code Requirements90 el Ft straight Ft straight 4.6m 0.3m Vent Terminal InstallationElectrical Wiring Vent InstallationPositive pressure Operation and Checking the DraftMaintenance Water Connections Drip TrayGAS Connections Relief ValveFilling Service HintLighting and Operating Instructions To Turn OFF GAS to AppliancePressure Regulation Temperature RegulationHigh Temperature Limit Switch Maintenance and Service Trouble ShootingStops sparking Adjusting ScrewNo Spark AT the Pilot Pilot Lights but Burners Will not Come on Pilot Sparks Continuously with No Water RunningMain Burners GO OUT During HOT Water USE Water is TOO HOTSee on HOT Water Temperature FluctuatesInterior Components Diagram Parts List WR430 Interior Components Diagram and Parts List Page Page Page Www astravan.com Chauffe-eau instantané, à gazMax Déballage DU CHAUFFE-EAU Bosch WR430-3KPrincipe de fonctionnement Voir DimensionsDemande Dair Lieu DinstallationAlimentation Électrique Montage AvertissementDégagements DE Séparation Latmosphère IntroductionInformation Générale Prescriptions Générales DES Codes Matériaux Approuvés Pour LE Circuit DE DéchargeInstallation DE LA Bouche DE Décharge Câblage Électrique Installation DU Système DE DéchargeContrôle DU Tirage Utilisation ET Contrôle DU TiragePoints dinspection EntretienVanne manométrique et raccords S vue de dessus Plateau DE RécupérationRaccordement AUX Canalisations Deau Raccordement À LA Canalisation DE GAZ Soupape DE SurpressionInterruption DE L’ALIMENTATION EN GAZ DU CHAUFFE-EAU RemplissageAllumage ET Utilisation Thermostat DE Sécurité «HAUTE TEMPÉRATURE» Régulation DE LA PressionNe pourra s’allumer DépannagePrésence d’air dans la canalisation de gaz PAS D’ÉTINCELLES Pour LA Flamme DE VeilleFlamme DE Veille ALLUMÉE, Mais LE Brûleur NE ’ALLUME PAS Production Constante D’ÉTINCELLES, Sans Circulation D’EAUEAU Trop Chaude Température DE L’EAU InsuffisantePression de gaz insuffisante Voir les spécifications à la Fluctuation DE LA Température DE L’EAUVoir a, Voir le tableau 1,703 406 Composants Internes DU CHAUFFE-EAU WR ET Liste DES Pièces702 000 Composants Internes ET Liste DES Pièces Page

WR430-3K specifications

The Bosch Appliances WR430-3K is a high-performance wall oven that exemplifies modern design and cutting-edge technology. Engineered with precision, this appliance is crafted to enhance your cooking experience while seamlessly blending into any kitchen aesthetic.

One of the most notable features of the WR430-3K is its advanced European design that creates a sleek and sophisticated look, making it an attractive addition to any home. The stainless-steel finish not only provides a professional appearance but is also resistant to fingerprints, ensuring that the oven maintains its pristine look over time.

Equipped with Bosch's innovative oven technology, the WR430-3K boasts a convection cooking system that circulates heat evenly throughout the oven cavity. This ensures that every dish cooks uniformly, eliminating hot spots and allowing for perfectly baked goods and evenly roasted meats. The appliance also includes multiple cooking modes such as Bake, Broil, and Roast, providing versatility for a wide range of culinary tasks.

In addition to its cooking prowess, the WR430-3K features Bosch's EcoClean technology which simplifies the cleaning process. The oven interior is coated with a special catalytic material that absorbs grease and reduces the need for harsh cleaning chemicals. This commitment to easy maintenance not only saves time but also contributes to a more environmentally friendly kitchen.

Safety is a priority, and the WR430-3K is equipped with an automatic shut-off feature that provides peace of mind, ensuring that the oven will turn off after a designated period of inactivity. Furthermore, the oven’s control panel is intuitively designed, allowing for effortless navigation through various settings, making it user-friendly for even the least experienced cooks.

The Bosch Appliances WR430-3K also comes with a spacious oven capacity, accommodating large meals and multiple dishes at once. The oven's adjustable racks and several shelf positions allow for flexible cooking arrangements to fit any recipe.

In summary, the Bosch Appliances WR430-3K wall oven combines elegance with functionality. Its impressive features, innovative technologies, and thoughtful design make it an essential appliance for aspiring chefs and home cooks alike, ensuring delicious outcomes for every meal. Whether you are baking, roasting, or broiling, this wall oven is sure to enhance your culinary creations while effortlessly complementing your kitchen decor.
Top Page Image Contents