Repair
Repair Price: $ 1,640.00
Purchase
CSL Part Number: 16835
Category: PLC
Manufacturer: Armstrong Blum Mfg
Manufacturer Part Number: 81-EA404
Common Failures
Several units have experienced issues involving shorted diodes, broken triac leads, and burnt resistors, often due to external damage or wear. Such problems commonly manifest as failures in limit switch inputs, improper tilt response, or relay chattering. Additionally, there have been instances of scrambled display outputs and non-responsive keypads.
Repair Approach
Repairs typically involve replacing damaged components such as diodes, triacs, resistors, capacitors, and keypads. Efforts also include reprogramming and testing to restore functionality. In several cases, capacitors and triacs were replaced to restore normal operation. For keypads, defective overlays were removed and new ones installed to address faulty keys.
Testing & Quality
Testing is conducted after repairs to verify operability. Units are often bench-tested to verify input and output functions. In some instances, following component replacements such as EEPROM, the customer may need to re-enter custom settings. Quality checks are performed to ensure that repaired units meet operational standards before return.
Beyond Economic Repair (BER)
Units deemed Beyond Economic Repair are generally due to the unavailability of critical parts, such as membrane keypads or other specific components, rendering further repair impractical. In such cases, customers may choose to have the units recycled here at no charge or returned.
Service and repair your broken Armstrong Blum Mfg part
We can repair your Armstrong Blum Mfg model 81-EA404 in our facility. Let our skilled technicians get your Armstrong Blum Mfg back in operation quickly.
Step 1 - Click the green 'Repair Now' button above to add the part and then complete the RMA.
Step 2 - The RMA form will be sent to you via email. Print the RMA form and put it in a box with the item(s) for repair.
Step 3 - Ship or mail the box to the address listed on the RMA.
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