Bosch Appliances 2400E NG, 2400E LP manual Error code diagnostics, Display Cause Solution

Page 36

Troubleshooting

6.8Error code diagnostics

Part numbers subject to change.

Display

Cause

Solution

 

 

 

A2

Fault in the flue gas limiter (part#

1. Check for flue gas leakage around the top and

 

8700400032).

bottom seals of heat exchanger as well as the

 

Note: Old style overheat cutoff fuse

viewing window. Look for any noticeable burn marks

 

(8700400019) has been replaced with this

or warping of the gaskets. If a leak is detected, seals

 

new limiter.

will need replacing.

 

 

2. Verify that venting meets specifications outlined

 

 

in chapter 3.6. Long vent lengths, incorrect venting

 

 

material, venting with more than three elbows,

 

 

blocked vent or combination venting may cause this

 

 

failure. Verify backdraft flapper inside flue gas

 

 

collector is not stuck shut.

 

 

3. Check flue gas limiter wire connectors for

 

 

tightness. Clean with pencil eraser if any corrosion

 

 

is evident.

 

 

4. Trace wires from flue gas limiter to black

 

 

connector. Verify the connection is tight.

 

 

5. If limiter is tripped due to overheating, it must cool

 

 

down before error will clear on the control board.

 

 

 

A7

Hot water temperature sensor fault

1. Check red wire connections at the hot water

 

(Temperature below 36°F or above 210°F)

temperature sensor. Clean terminals with a pencil

 

(part# 8700400015)

eraser. If badly corroded, replace sensor and wire

 

 

harness. Verify that sensor is firmly clipped on to the

 

 

hot water copper pipe.

 

 

2. Sensor may trip if water temperature drops below

 

 

36°F. Protect heater from freezing condition as any

 

 

damage due to freezing conditions is not covered

 

 

under warranty.

 

 

3. Clean inlet filter screen per chapter 5.1 and clear

 

 

any debris out of showerheads, faucet aerators and

 

 

whole house filters.

 

 

4. In areas where water has a high mineral content,

 

 

periodic descaling may necessary. See chapter 5.3

 

 

for directions.

 

 

5. Swap sensor with the cold water sensor, keeping

 

 

respective wire connections as they are. If the

 

 

heater produces an E2 error, replace the sensor.

 

 

 

A9

Hot water temperature sensor not sensing

1. Check that the sensor is firmly attached to the

(Flashing)

expected output temperature.

horizontal section of the hot water pipe.

 

(part# 8700400015)

2. Clean inlet filter screen per chapter 5.2 and clear

 

 

any debris out of showerheads, faucet aerators and

 

 

whole house filters.

 

 

3. Verify that venting meets specifications outlined

 

 

in chapter 3.6. Long vent lengths, incorrect venting

 

 

material, venting with more than three elbows,

 

 

blocked vent or combination venting may cause this

 

 

failure. Verify backdraft flapper inside flue gas

 

 

collector is not stuck shut.

 

 

4. Check gas pressure per chapter 3.8*. Low gas

 

 

pressure may prevent the heater from reaching

 

 

desired output temperature.

 

 

5. Check supply voltage is 120VAC and is properly

 

 

grounded.

 

 

6. Possible defective control unit. Call Bosch Water

 

 

Heating for further instructions.

 

 

 

Table 12

* By installer or service technician only.

36

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Contents NG Natural Gas LP Liquefied Petroleum LP Gas Intended for variable flow applicationsWhat to do if you smell gas For your safety IndexIndex FCC Features 2400 E Specifications Technical dataAppliance details Unpacking the 2400 E heater General rules to follow for safe operation VentingDimensions and Minimum installation clearances DimensionsInstallation instructions Proper location for installing your heaterHeater placement and clearances Mounting installationCombustion air requirements Single pipe methodTwin pipe method Installation instructions Vent material and specifications VentingVent lengths Minimum exhaust vent size and lengthVent Safety System Vent connections Exhaust vent connectionCombustion air inlet connection External condensate drain installation not supplied Room sealed installation Twin pipeVertical terminations Horizontal runsVent terminations Interior masonry chimneysExterior masonry chimneys Horizontal terminationsInstallation instructions Description Minimum distance 720 608 Gas piping & connections For Natural GAS Connecting Manometer Measuring gas pressureStatic Pressure Test Operating Pressure TestWater connections HotcoldElectrical connections Recirculation applicationFor your safety, read before oper- ating your water heater PowerOperation instructions Operation instructionsTemperature selection Operation instructions OffOperation instructions Setting the water temperature Flow/temperature chartUse of optional remote control accessory Reset buttonOperation Program buttonMaintenance and service Annual maintenanceWinterizing for seasonal use Adjusting CO2 Descaling using a pumpMineral scale build-up Once Gas Pressure is adequateMeasuring CO2 Cover Installed Adjusting CO2 cover removedReturning to Service Final ReadingsControl board diagnostics Diagnostic menuTroubleshooting TroubleshootingWater is too hot Water is not hot enoughHot water temperature fluctuates at tap Low water flow/pressureNoisy burner/heater during operation Lack of gas pressure. Inadequate gas pressure will Error code diagnostics Display Cause SolutionMeet desired temperature Troubleshooting Display Cause Solution Check red wire connections at hot waterNo flame ionization detected with water Heat exchanger Flame ionization rod or control unit may be Electrical diagram Electrical diagramFunctional scheme Functional schemeInterior components diagram and parts list Interior components diagram and parts listInterior components Components diagram Components DiagramParts list Description ReferenceProtecting the environment Protecting the environmentPacking ComponentsTwelve Year Limited Warranty BBT North America

2400E NG, 2400E LP specifications

Bosch Appliances has long been synonymous with quality and innovation in the kitchen appliance sector. Among their impressive lineup, the Bosch 2400E LP (Liquid Propane) and 2400E NG (Natural Gas) models stand out as prime examples of the brand’s commitment to performance and functionality.

Both the 2400E LP and 2400E NG are designed with user convenience and culinary excellence in mind. One of the most notable features of these appliances is their exceptional heat distribution, which ensures that food cooks evenly. This is particularly beneficial for grilling, where inconsistent heat can lead to unevenly cooked meals. The burners are crafted to provide high-efficiency performance while consuming less fuel, making them an economical choice for both home cooks and culinary enthusiasts.

Each model boasts a sleek, modern design that can seamlessly integrate into various kitchen styles. The stainless steel construction not only enhances aesthetics but also increases durability, ensuring the appliance can withstand the rigors of daily use while maintaining its appearance. The 2400E series also features a compact size, making it suitable for kitchens of all dimensions, including those with space constraints.

In addition to design and performance, safety features are a priority for Bosch. The 2400E models come equipped with sturdy flame control knobs, allowing users to adjust heat settings with precision, reducing the risk of accidental flare-ups. Moreover, the integrated ignition system is designed for reliability, ensuring that starting the unit is hassle-free.

Versatility is another hallmark of the Bosch 2400E LP and NG models. These appliances are compatible with a range of cooking accessories, from griddles to rotisserie attachments, providing multiple cooking methods to satisfy diverse culinary endeavors. The grease management system is another highlight, simplifying cleanup and maintenance after cooking sessions.

Another innovative technology in the Bosch 2400E series is the Smart Grilling feature, which includes temperature sensors that provide real-time feedback. This allows users to monitor cooking progress effortlessly, enhancing the overall cooking experience. The models also include a robust warranty, ensuring peace of mind for consumers.

In conclusion, Bosch Appliances’ 2400E LP and NG models represent a fine balance of innovation, safety, and style. With their powerful cooking capabilities, thoughtful design features, and user-friendly technologies, they stand as excellent choices for anyone looking to elevate their cooking experience.
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