Frequently Asked Questions
Q1: What is the functional difference between YN22E00020F1 and YN22E00020F2?
A: The F2 revision incorporates updated throttle mapping logic and improved voltage spike suppression. It is backward compatible with machines originally equipped with F1. The F2 also includes enhanced CAN bus error handling. Physical dimensions and connectors are identical.
Q2: Is this truly plug-and-play? Do I need a laptop or dealer software to install it?
A: Yes, this is a true plug-and-play board. No programming, calibration, or dealer software is required. The firmware is pre-loaded at the factory. After installation, the machine's existing throttle calibration procedure (A/B mode) can be run from the monitor panel if throttle response requires fine-tuning.
Q3: My machine has been retrofitted or repaired before. How do I confirm the correct part number?
A: Check the white or silver label on your current computer board. The YN22E00020F1 or YN22E00020F2 part number is printed directly on the label. Take a clear photo and send it to COGENG sales customer service for cross-referencing.
Q4: What is the warranty period?
A: COGENG provides a 12-month warranty from the date of shipment. This warranty covers manufacturing defects and component failure under normal operating conditions. It does not cover damage caused by improper installation, water ingress due to unsealed connectors, over-voltage events, or physical impact.
Q5: Are you a manufacturer or a trading company?
A: COGENG is a manufacturer based in Guangdong, China, with an ISO9001-certified production facility. We design, produce, and test our own range of excavator electronic control units.
Q6: Can I order only 1 piece for a trial?
A: Yes. Acceptable trial order (MOQ: 1 piece). We encourage first-time buyers to test a single unit to evaluate quality and compatibility before placing a bulk order.
Q7: The return policy states "not returnable or exchangeable." What protection do I have as a buyer?
A: While returns for buyer's remorse or ordering errors are not accepted, we provide extensive pre-shipment support:
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Free compatibility verification based on your machine serial number.
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Photo and video confirmation of your actual unit before payment release.
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Functional testing documentation.
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Technical installation support via messaging to ensure correct installation.
Q8: How do I install the board safely?
A: Follow this sequence:
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Turn ignition OFF, disconnect battery negative terminal.
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Photograph existing wiring connections for reference.
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Remove old board by unscrewing mounting bolts and unplugging connectors.
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Mount new board. Reconnect harnesses ensuring firm clicks on locking tabs.
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Reconnect battery. Turn ignition ON. Verify LED power indicator illuminates.
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Start engine and test all functions (throttle, hydraulic, safety lock).
Q9: What shipping method should I choose for the fastest delivery?
A: Express services (DHL, FedEx, UPS) provide door-to-door delivery typically within 3–7 business days. The specific arrangement will be based on your location and the cargo situation.
Q10: How do I get the price?
A: Please contact COGENG sales customer service directly via the platform's messaging system. Specify the part number, quantity required, and shipping destination for an accurate quotation.
