Procom ML250HPA, ML150HPA, ML150TPA 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 and control knob is pressed in and turned to the PILOT position, there is no spark at ODS/pilot.

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

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. 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.Control knob not in PILOT position.

6.Gas regulator setting is not correct.

7.Depleted gas supply.

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.

1.Turn on gas supply or 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 Maintenamce, Page 13) or replace ODS/pilot assembly.

5.Turn control knob to PILOT position.

6.Replace gas regulator.

7.Contact local prapane/LP gas company.

When ignitor button is pressed and control knob is press in and turned to the PILOT position, there is a spark at ODS/pilot but no ignition.

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 is loose at control valve.

5 Pilot flame is not touching thermocouple, This allows 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.Contact Dealer or PRO-COM

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Contents OWNER’S Operation and Installation Manual ML150HPA ML150TPA ML250HPA ML250TPASafety Information Important Read thisProduct Features Determining FRESH-AIR Flow for Heater Location Fresh AIR for Combustion VentilationProviding Adequate Ventilation Determining if you have a Confined or Unconfined SpaceVentilation AIR Ventilation Air from Inside BuildingVentilation AIR InstallationInstallation Needs Locating HeaterInstallation Installing Thermostat Sensing BulbPlacing Heater on Mounting Bracket Installing Bottom Mounting ScrewsAttaching to Wall Anchor Method Typical Inlet Pipe Diameters Connecting to GAS SupplyImportant Install NPTNON-THERMOSTAT Models NFOR Your SAFETYnChecking GAS Connections Read Before LightingShutting Off Burner Only pilot stays lit Operating Your HeaterShutting Off Heater Stays lit Operating Your HeaterShutting Off Burner Only pilot Operating Heater Cleaning ODS/PILOT and BurnerCleaning Burner Pilot AIR Inlet Hole Main TenanceTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Page 13 or Observed Problem Possible Cause RemedyML150HPA SpecificationsParts Under Warranty ML250TPAML150HPA Burner Assembly ODS/Pilot AssemblyIllustrated Parts Breakdown Description QTY Parts List ML150HPAKEY ML150HPA NO. Part no ODSODS/Pilot Assembly Burner Assembly NRV81FIL-10 Parts List ML250HPAKEY ML250HPA Description QTY ML150TPA Parts List ML150TPA KEYML250TPA Parts List ML250TPA KEY ML250TPA

ML150TPA, ML250HPA, ML150HPA specifications

The Procom ML250HPA, ML150HPA, and ML150TPA represent the pinnacle of high-performance heating systems, tailored to meet diverse heating needs with efficiency and reliability. These models are known for their innovative technologies and robust characteristics, making them ideal choices for both residential and commercial applications.

The ML250HPA stands out with its impressive heating capacity, perfect for larger spaces. It incorporates advanced features for user convenience, including a fully programmable thermostat and remote control functionality. This model utilizes high-efficiency heating elements that not only provide powerful warmth but also help to keep energy consumption low. The integration of smart technology allows for real-time monitoring and adjustments, ensuring optimal comfort while minimizing energy use.

On the other hand, the ML150HPA is designed for medium-sized spaces, offering a balance of performance and efficiency. Like its bigger counterpart, it showcases energy-efficient heating elements. The model is equipped with built-in safety features such as overheat protection and tip-over switches, ensuring peace of mind during operation. Its compact design allows for versatile installation options, while the stylish finish makes it an attractive addition to any room.

The ML150TPA variant focuses on portability without sacrificing performance. This model is lightweight, making it easy to move from one location to another while still providing powerful heating capabilities. It features an adjustable heat output, allowing users to customize the temperature according to their immediate needs. The robust construction ensures durability, making it suitable for various environments, from workshops to temporary living spaces.

All three models emphasize energy efficiency and low operating costs, incorporating eco-friendly technologies that align with modern energy standards. The intelligent design of these units helps to reduce noise levels, providing a peaceful environment without disruptive sounds common in traditional heating systems.

In summary, the Procom ML250HPA, ML150HPA, and ML150TPA are exceptional heating solutions that cater to different requirements while ensuring energy-efficient and reliable performance. Their combination of advanced features, safety mechanisms, and user-friendly interfaces make them a smart investment for anyone looking to enhance their heating experience. Whether you prioritize capacity, portability, or a balance of both, Procom has a model designed to meet your specific needs.