Vulcan-Hart C24GA6 ML-136021, C24GA10 ML-136022 service manual Troubleshooting

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C24GA SERIES CONVECTION STEAMERS - TROUBLESHOOTING

TROUBLESHOOTING

General

The following paragraphs provide descriptive information of the most common troubles that can occur in the steamer. The Troubleshooting Chart provides a list of other typical fault conditions. The left-hand column of the table lists typical symptoms and the right-hand column lists probable causes and the suggested remedies.

Water Not Being Supplied to Generator

Turn the steamer on. Check that water supply is available to the steamer. After approximately 10 minutes, if no water is present, then check for a problem with the water solenoid valve or water level control probe.

Scalants may be covering the water level control probe giving a false indication of a sufficient water level in the generator. Detach, remove and thoroughly clean the water level probe assembly to remove scalants and lime build-up. This condition indicates extremely poor water quality being supplied to the generator and/or generator clean out and deliming has not been performed. The water condition must be cleared up immediately with a proper water conditioner to avoid further problems with the steamer. Replace the water level probes and canister assembly. Water may be draining through an open generator solenoid valve as quickly as it’s fed to the generator. Particles of scale trapped in the genera- tor solenoid valve seat may prevent the valve from closing.

Pilot Or Main Burner Will Not Light

Check blower air pressure, air pressure switch adjust- ment, pilot burner adjustment, gas inlet and manifold pressures. The pilot burner orifice should be a 1/8" hole.

Drain Solenoid Valve Does Not Drain

The drain solenoid valve is normally closed when the main power switch is in the on position. When the main power switch is set to off, the solenoid valve is ener- gized and the generator drain valve opens for 1000 seconds.

Water contained in the generator, being under pressure, should be draining through this valve and be noticeable exhausting out the steamer drain.

If the drain operation appears to function sluggishly or not at all, scalants may be lodged in the drain pipe and/ or the valve. Disconnect the drain solenoid valve from the drain line and inspect both the valve and the drain pipe fixed to the generator. If considerable scalants or lime build-up is apparent, then not only the drain solenoid valve, but also the generator and water level control must be thoroughly cleaned.

Water Accumulating in Compartment

Water accumulation on the bottom of the cooking compartment(s) is primarily condensed steam. Failure to drain out quickly and completely may be due to debris in the compartment drain screen. Pull screen straight out and thoroughly clean, then replace. Failure to drain completely may also be due to improper leveling of the steamer.

Cooking Cycle Cannot Be Activated

Inspect all wire terminals to ensure they are positive and secure before assuming any other problem. When the power switch on generator control box is in the on position, set the timer knob to 2 minutes. Both Ready lights should go off, Cooking lights should come on and steam should be entering both compartments.

Steamer Achieves Pressure Slower Than Normal

If the generator requires more than 18 minutes to achieve normal operating pressure of 3 – 4 psi, then check the following conditions.

A.A heavy build-up of scalants has possibly coated the interior of the generator. The insulating effect of the scalants hampers heat transfer. Unscrew and remove the clean-out port plug on the bottom of the generator. Using a small mirror examine interior of generator and if scalants and/or lime build-up is apparent, perform a generator clean-out and deliming procedure (see DELIMING THE GENERATOR). If considerable scalants are evident, both the generator drain solenoid valve and the water level control must also be examined.

B.Low incoming gas pressure. Check the incoming line and manifold gas pressures as outlined in MANIFOLD PRESSUREADJUSTMENTunder

SERVICE PROCEDURESANDADJUSTMENTS.

C.Gas combination control valve malfunction. Check the incoming and manifold gas pressures as outlined in MANIFOLD PRESSURE ADJUSTMENT under SERVICE PROCEDURES ANDADJUSTMENTS.

If pressure adjustments are made and manifold pres- sure remains low, replace the gas combination control valve and test the steamer for proper operation.

D.Gas orifice clogged or obstructed around air shutter. It is possible for debris to become lodged in the small gas orifice opening over time. Clean out the gas orifice using a round metal instrument of the same hole diameter or slightly smaller. Clean as needed. If clogging reappears, the orifice should be removed, cleaned, and reinstalled. Remove any other foreign objects that appear to be obstructing the gas orifice or air shutter.

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F35425 (February 2006)

 

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Contents Steamers ConvectionTable of Contents Low Level Cut-Off & Differential Control General Installation Operation Cleaning SpecificationsIntroduction ToolsCovers and Panels Removal and Replacement of PartsCooking Compartment Door Door AssemblyCabinet Base Left Side Panel Cabinet Base Rear PanelDoor Handle Door GasketCompartment Controls Door Latch AssemblyGenerator Assembly Main BurnerGAS Combination Control Valve Covers and Panels Fill and Cold Water Solenoid Valves PILOT/SPARK Probe Flame Sensor Blower AIR Pressure Adjustment AIR Pressure Switch Service Procedures and AdjustmentsPilot Burner Adjustment Operating Pressure Switch Thumb Wheel Adjustment Inlet Water/Steam Strainer Spark Ignition Control Test Automatic Ignition SystemsIgnition Test Manifold Pressure AdjustmentLatch Adjustment Cooking CompartmentControls Deliming the Generator Striker AdjustmentItems Required not provided C24GA Automatic Drain US GAL Capacity Steam GeneratorCooking Cycle Test Probe InspectionGeneral Water Level Controls Electrical OperationSequence of Operation Low Level Cut-Off and Differential ControlC24GA Series Convection Steamers Electrical Operation Compartment control Units after Dec Generator Schematic Diagram Schematic DiagramsSchematic Diagram Compartment Controls Standard Schematic Diagram Compartment Controls Constant Steam Component Location Cabinet Base Generator Component Function Cabinet Base Generator Super Heater Assembly Blower Air Pressure SwitchDrain Valve Timer Hold ThermostatComponent Location Cooking Compartment Component Function Cooking Compartment Troubleshooting Step Function Description Troubleshooting Sequence of OperationSymptom Possible Causes Troubleshooting ChartSymptom Possible Causes Symptom Possible Causes Condensed Spare Parts List F35425 February

C24GA6 ML-136021, C24GA10 ML-136022, C24GA6, C24GA10, ML-136021, ML-136022 specifications

The Vulcan-Hart C24GA series is renowned in the commercial kitchen industry for its high-quality performance and efficient cooking capabilities. This series includes models C24GA6 and C24GA10, which are designed with versatility and reliability at their core. These models cater to a wide range of culinary demands, ensuring that chefs can prepare a variety of dishes with ease.

The C24GA6 features six powerful burners, providing ample cooking space and heat output for busy kitchens. Its robust construction ensures durability, while an easy-to-clean stainless steel exterior makes maintenance hassle-free. The burners are designed for quick ignition, and the adjustable flame control allows for precise temperature adjustments, ideal for simmering sauces or achieving the perfect sear.

On the other hand, the C24GA10 model is equipped with ten burners, making it suitable for larger establishments that require additional cooking power. Similar to the C24GA6, it incorporates seamless stainless steel components and a design that meets the rigorous demands of a professional kitchen. Both models boast a high BTU output, ensuring that meals are prepared quickly and efficiently, which is essential during peak hours.

The C24GA series also integrates advanced technologies that enhance its functionality. The burners utilize a standing pilot ignition system, ensuring a reliable start-up every time. This technology minimizes downtime and allows chefs to focus on cooking rather than troubleshooting equipment.

In addition to the C24GA series, Vulcan-Hart offers the ML-136021 and ML-136022 models, which complement the cooking arsenal in any kitchen. These models are expertly designed to provide the same level of reliability and performance. They follow the same principles of durability and ease of maintenance that Vulcan-Hart is known for.

The ML-136021 and ML-136022 models feature streamlined designs that fit seamlessly into any workspace. With efficient heat distribution and user-friendly controls, these models are perfect for both experienced chefs and culinary students alike.

Together, the Vulcan-Hart C24GA6, C24GA10, ML-136021, and ML-136022 models represent a comprehensive cooking solution that meets the varied needs of commercial kitchens. With their powerful burners, durable construction, and advanced technologies, these units ensure top-notch performance and efficiency for all cooking requirements.
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