Desa VMH26PR installation manual Troubleshooting, Observed Problem Possible Cause

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® VMH26PR

COMPACT CLASSIC HEARTH FIREPLACE

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 heater and let cool before servicing. Only a qualified service person should service and repair heater.

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

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no spark at ODS/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 to base panel of log set. Nut is located behind base panel

4.Replace ignitor cable

5.Replace piezo ignitor

6.Replace piezo ignitor

7.Replace piezo ignitor

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

1.Gas supply turned off or manual shutoff valve closed

2.Control knob not in PILOT position

3.Control knob not pressed in while in PILOT position

4.Air in gas lines when installed

5.Depleted gas supply

6.ODS/pilot is clogged

7.Gas regulator setting is not correct

1.Turn on gas supply or open manual shutoff valve

2.Turn control knob to PILOT position

3.Press in control knob while in PILOT position

4.Continue holding down control knob. Re- peat igniting operation until air is removed

5.Contact local propane/LP gas company

6.Clean ODS/pilot (see Cleaning and Maintenance, page 25) or replace ODS/ pilot assembly

7.Replace gas control

ODS/pilot lights but flame goes out when control knob is released

1.Control knob not fully pressed in

2.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 ODS/pilot

5.Thermocouple connection loose at con- trol valve

6.Thermocouple damaged

7.Control valve damaged

1.Press in control knob fully

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

3.Fully open manual shut-off valve

4.A) Contact local propane/LP gas company

B) Clean ODS/pilot (see Cleaning and Maintenance, page 25) or replace ODS/ pilot assembly

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

6.Replace thermocouple

7.Replace control valve

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Contents VENT-FREE PROPANE/LP GAS What to do if YOU Smell GASSafety Information Compact Classic Hearth FireplaceProduct Identification Product FeaturesRemote Control Accessories Local CodesAssembling Fireplace AssemblyInstalling Log Assembling HoodUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Fireplace Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Check GAS Type InstallationInstallation Items Locating FireplaceBUILT-IN Fireplace Installation Rough Opening for Installing in WallMantel Clearances for Built-In Installation Optional Mantel InstallationAssembling Brass Trim Brass trim shipped with mantel Removing Upper Louver Assembly Installing Blower Accessory GA3400TInstalling Blower Assembly For Built-In Installation Test to make sure the blower is work- ing properlyExtension Cord Connecting to GAS SupplyAttaching Wood Base to Solid Floor Connecting Fireplace to GAS Supply Installation Items NeededPressure Testing Gas Supply Piping System Pressure Testing Fireplace Gas ConnectionsChecking GAS Connections Installing 9-Volt Battery in Hand- Held Remote Control Unit Optional Wireless HAND- Held Remote Control AccessoriesInstalling Receiver Optional Wall Mounted Thermostat GWMT1Optional Wall Switch GWMS2 Route the 25 ft. wire to a convenientOperating Fireplace For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureOptional Remote Operation Optional GWMS2 Wall Mounted Switch OptionalOPERATINGGWMT1 Wall Fireplace Operating BlowerPilot Flame Pattern Inspecting BurnersBurner Flame Pattern Troubleshooting Observed Problem Possible CauseObserved Problem Possible Cause Remedy Gas leak. See Warning statement at Technical Service Cleaning and MaintenanceService Hints Wiring DiagramAccessories Specifications Replacement PartsIllustrated Parts Breakdown VMH26PR4Parts List VMH26PRWarranty Information International

VMH26PR specifications

Desa VMH26PR is a cutting-edge horizontal multistage pump designed for a variety of applications, primarily in industrial and municipal sectors. Its robust construction delivers excellent performance and reliability, making it a preferred choice for demanding environments.

One of the primary features of the VMH26PR is its versatile design. Engineered for efficiency, it is capable of handling a wide range of fluids, including clean water, chemicals, and other industrial liquids. This pump is particularly known for its ability to operate under high-pressure conditions while maintaining a low energy consumption rate, which is a significant advantage in terms of operational costs.

The VMH26PR incorporates advanced hydraulic technologies, which enhance both performance and efficiency. The multistage configuration allows for higher pressure generation, making it ideal for applications that require elevated discharge pressures. Each stage is meticulously designed to optimize flow, reducing turbulence and maximizing throughput. This results in improved overall system efficiency and longevity of the pump.

In terms of materials, the VMH26PR offers various casing options tailored to the specific needs of the application, including stainless steel and cast iron. These materials provide excellent resistance to corrosion and wear, ensuring durability even in harsh environments. Additionally, the pump features mechanical seals designed to minimize leakage and enhance reliability.

Another significant technological aspect of the VMH26PR is its modular design. This allows for easy maintenance and component replacement, reducing downtime and service costs. Users can easily access vital parts without disassembling the entire unit, which is a considerable advantage for operation in critical settings.

Moreover, the Desa VMH26PR is equipped with a range of monitoring and control options, enabling seamless integration into automated processes. This feature enhances operational efficiency, allowing operators to monitor performance parameters in real-time and make data-driven decisions to optimize performance.

Overall, the Desa VMH26PR stands out with its combination of efficiency, durability, and ease of maintenance, making it an ideal solution for various fluid handling tasks across different industries. Its ability to adapt to specific requirements and conditions ensures it will meet the diverse needs of modern applications effectively.
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