® SDVBN(A) AND SDVBP(A)

CAST IRON STOVE AND BURNER SYSTEM

TROUBLESHOOTING

Note: For additional help, visit DESA International’s technical service web site at www.desatech.com.

Note: All troubleshooting items are listed in order of operation.

WARNING: Turn off burner system and let cool before ser- vicing. Only a qualified service person should service and repair burner system or stove.

CAUTION: Never use a wire, needle, or similar object to clean pilot. This can damage pilot unit.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no spark at pilot

1.Ignitor electrode not connected to igni- tor cable

2.Ignitor cable pinched or wet

3.Piezo ignitor nut is loose

4.Broken ignitor cable

5.Bad piezo ignitor

6.Ignitor electrode broken

7.Ignitor electrode positioned wrong

1.Reconnect ignitor cable

2.Free ignitor cable if pinched by any metal or tubing. Keep ignitor cable dry

3.Tighten nut holding piezo ignitor. Nut is located behind the mounting bracket

4.Replace ignitor cable

5.Replace piezo ignitor

6.Replace pilot assembly

7.Replace pilot assembly

When ignitor button is pressed, there is spark at pilot but no ignition

1.Gas supply turned off or manual shutoff valve closed

2.Gas Ccntrol knob not in PILOT position

3.Gas control knob not pressed in while in PILOT position

4.Air in gas lines when installed

5.Depleted gas supply (propane/LP models only)

6.Pilot is clogged

7.Gas regulator setting is not correct

1.Turn on gas supply or open manual shutoff valve

2.Turn gas control knob to PILOT position

3.Press in gas control knob while in PILOT position

4.Continue holding down gas control knob. Repeat igniting operation until air is removed

5.Contact local propane/LP gas company

6.Clean pilot (see Cleaning and Mainte- nance, page 27) or replace pilot assembly

7.Replace gas control

Pilot lights but flame goes out when control knob is released

1.Gas control knob not fully pressed in

2.Gas control knob not pressed in long enough

3.Manual shutoff valve not fully open

4.Pilot flame not touching thermocouple, which allows thermocouple to cool, causing pilot flame to go out. This prob- lem could be caused by one or both of the following:

A)Low gas pressure

B)Dirty or partially clogged pilot

5.Thermocouple connection loose at con- trol valve

6.Thermocouple damaged

7.Control valve damaged

1.Press in gas control knob fully

2.After pilot lights, keep gas control knob pressed in 30 seconds

3.Fully open manual shut-off valve

4.A) Contact local gas company

B)Clean pilot (see Cleaning and Maintenance, page 27) or replace pilot assembly

5.Hand tighten until snug, then tighten 1/4 turn more

6.Replace thermocouple

7.Replace control valve

www.desatech.com

28

105499

Page 28
Image 28
Vanguard Heating SDVBN(A), SDVBP(A) manual Troubleshooting, Observed Problem Possible Cause

SDVBP(A), SDVBN(A) specifications

Vanguard Heating SDVBN(A) and SDVBP(A) are innovative heating solutions designed for residential and commercial applications, aiming to deliver unparalleled efficiency and comfort. These models showcase advanced technologies tailored to meet modern heating demands while ensuring minimal environmental impact.

One of the standout features of the Vanguard Heating SDVBN(A) and SDVBP(A) is their highly efficient heating performance. Operating with an Annual Fuel Utilization Efficiency (AFUE) rating of up to 95%, these models convert a significant portion of fuel into heat, minimizing energy waste and lowering utility costs. This efficiency translates to substantial savings for homeowners and businesses alike, making them an economically sound choice in the long run.

The SDVBN(A) and SDVBP(A) are equipped with variable-speed blower motors, allowing for precise control of airflow. This technology not only enhances comfort by maintaining consistent temperature levels throughout spaces but also contributes to reduced noise levels during operation. The quiet performance of these units is particularly appealing for residential settings, such as bedrooms and living areas.

In terms of versatility, Vanguard offers multiple configurations, allowing installers to tailor the heating system to specific requirements. Whether it’s a large open plan or a more segmented layout, the adjustable airflow and zoned heating capabilities ensure that every corner of the space is adequately warmed.

Another notable characteristic is the integrated smart technology. Both models come with advanced control systems that can be easily connected to compatible smart thermostats. This allows users to monitor and adjust heating settings remotely, providing added convenience and optimizing energy usage according to individual schedules.

Moreover, the SDVBN(A) and SDVBP(A) feature robust construction designed for durability. With high-quality materials and components, these units can withstand the rigors of daily use, ensuring reliable performance throughout their lifespan. Regular maintenance is simplified due to accessible design, empowering users or service technicians to conduct routine checks and repairs with ease.

Vanguard Heating has also incorporated safety features, including built-in sensors that monitor system performance and automatically shut down the unit in case of any malfunctions. This proactive approach provides peace of mind, knowing that the heating system is both efficient and safe.

In summary, Vanguard Heating SDVBN(A) and SDVBP(A) models embody cutting-edge technology, efficiency, and reliability in home and commercial heating solutions. Their ability to deliver comfortable, quiet, and economical heating while prioritizing safety and ease of maintenance makes them an excellent choice for any heating application.