Procom ML300HGA, ML300TGA Troubleshooting, Observed Problem Possible Cause Remedy

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TROUBLESHOOTING

Note : All troubleshooting

 

WARNING: Only a qualified

items are listed in order of

 

 

service person should service and

operation.

 

repair heater.

OBSERVED PROBLEM

 

 

 

POSSIBLE CAUSE

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

REMEDY

When ignitor button is pressed in, there is no spark at ODS/pilot.

1.Ignitor electrode is positioned wrong.

2.Ignitor electrode is broken.

3.Ignitor electrode is not connected to ignitor cable.

4.Ignitor cable pinched or wet.

5.Broken ignitor cable.

6.Bad piezo ignitor.

1.Replace ignitor.

2.Replace ignitor.

3.Reconnect ignitor cable.

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

5.Replace ignitor cable.

6.Replace piezo ignitor.

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

1 . Gas supply turned off or equipment shutoff valve is closed.

2.Control knob not fully pressed in while pressing ignitor button.

3.Air in gas lines when installed.

4.ODS/pilot is clogged.

5.Gas regulator setting is not correct.

6.Control knob not in PILOT position.

7.Depleted gas supply.

1.Turn on gas supply of open equipment shutoff valve.

2.Fully press in control knob while pressing ignitor button.

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

4.Clean ODS/pilot (see Cleaning and Maintenance. Page 13) or replace ODS/pilot assembly.

5.Replace gas regulator.

6.Turn control knob to pilot position.

7.Contact local propane/LP gas campany.

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

1.Control knob is not fully pressed in.

2.Control knob is not pressed in long enough.

3.Equipment shutoff valve is not fully open.

4.Thermocouple connection loose at control valve.

5 P i l o t f l a m e i s n o t t o u c h i n g t h e r m o c o u p l e . T h i s a l l o w s thermocouple to cool, causing pilot

flame to go out.

This problem could be caused by one or both of the following:

A)Low gas pressure

B)Dirty or partially clogged ODS/pilot

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 equipment shutoff valve.

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

5.A) Contact local propane/LP gas company.

B)Clean ODS/pilot (see Cleaning and Maintenance. Page 13) or replace ODS/pilot assembly.

6.Replace thermocouple.

7.Replace control valve.

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Contents L300HGA NON-THERMOSTAT Thermostat ModelFresh air at once! Have heater P O R TA N T Read thisCarbon Monoxide Poisoning Propane/LP GAS Propane/LP gasProduct Features Determining FRESH-AIR Flow for Heater Location Fresh AIR for Combustion and VentilationProducing Adequate Ventilation Unusually Tight ConstructionVentilation Air From Outdoors, Ventilation AIRVentilation AIR InstallationInstallation Needs Locating HeaterRemoving Lower Front Panel Of Heater Installing Thermostat Sensing BulbFor ML300TGA Methods For Attaching Mounting Bracket To WallAttaching To Wall Anchor Method InstallationInstalling Bottom Mounting Screws Important Do notConnecting to GAS Supply Typical Inlet Pipe DiametersChecking GAS Connections Test Pressures Equal To or Less Than 1/2 Psig 3.5 K PaInstructions Manual Lighting ProcedureLighting To Turn OFF GAS to ApplianceOperating Your Heater Shutting Off Burner Only pilot stays litCleaning Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyInlet gas pressure is too low Heater produces unwanted odors Burning vapors ON/OFF/AUTO SpecificationsML300HGA ML300TGA PRO-COMIllustrated Parts Breakdown ML300TGANRV81FI-8 Parts List ML300TGAKEY ML300TGA Description QTY NUTML300HGA Parts AVAILABLE.NOT Shown Parts List ML300HGAKEY ML300HGA QTY Description

ML300HGA, ML300TGA specifications

The Procom ML300HGA and ML300TGA are advanced communication solutions designed for an array of applications, particularly in sectors requiring robust and reliable wireless connectivity. Both models are designed to enhance operational efficiency through enhanced performance and pertinent features.

The ML300HGA model is tailored for high-gain applications, providing exceptional signal strength in demanding environments. This makes it an ideal choice for remote monitoring, industrial communication, and public safety operations where optimal signal reception is critical. It supports multiple frequency bands, including VHF and UHF, allowing flexibility in deployment across various networks.

Equipped with advanced antenna technology, the ML300HGA is designed to minimize noise and interference, ensuring clear communication even in congested frequencies. The rugged construction of this model makes it resilient to harsh environmental conditions—be it extreme temperatures, moisture, or physical impacts, thus increasing its longevity and reliability in the field.

On the other hand, the ML300TGA is designed for versatility and is particularly favored for its compact design and lightweight structure. This model is optimized for applications that require portability without compromising on performance. It is ideal for temporary installations or scenarios where mobility and adaptability are paramount.

Key features of the ML300TGA include multiple input and output options, allowing easy integration with various communication systems. Its modular design allows for easy upgrades and expansions, which is beneficial as organizational needs evolve.

Both models incorporate the latest advancements in antenna design technology, such as low Vswr (voltage standing wave ratio) and high efficiency, which translates to better bandwidth utilization. They also feature weather-resistant capabilities, ensuring functionality in diverse environments while maintaining signal integrity.

Moreover, these devices are designed with user-friendly interfaces, ensuring ease of operation, maintenance, and troubleshooting. The proprietary algorithms deployed in the ML300 series enhance signal processing capabilities, allowing for the management of multiple connections while optimizing performance.

When considering wireless communication equipment, the Procom ML300HGA and ML300TGA provide premier options that combine cutting-edge technology with practical features, addressing the needs of professionals in various fields. From industrial applications to public safety, these models are engineered to deliver dependable, high-quality performance in every situation.