Olympus OER Pro Error Codes

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Olympus OER-Pro Error Codes & Troubleshooting Guide

Find an error code, review its possible cause, and see what to check first. This reference covers 39 OER-Pro codes, with expandable guidance for routine troubleshooting checks.

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OER-Pro error-code chart · 39 codes
CodeWhat it meansFirst checks & next action
E00Electrical / System Cycle/process interrupted Allow automatic error processing to finish. Follow the required purge/rinse procedure before proceeding.

Possible cause: STOP/RESET was pressed during operation.
E01Water / Drain Basin takes too long to fill with water Fully open the water supply. Check the supply hose, water filter and inlet mesh filter.
E01: cause & checks

E01 — Basin takes too long to fill with water

Possible cause: Water supply restricted, faucet not fully open, filter restriction or supply leak.

First checks: Fully open the water supply. Check the supply hose, water filter and inlet mesh filter.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E02Water / Drain Cleaning fluid will not drain Check drain-hose installation and clean the basin drain mesh filter.
E02: cause & checks

E02 — Cleaning fluid will not drain

Possible cause: Drain hose problem or clogged basin drain filter.

First checks: Check drain-hose installation and clean the basin drain mesh filter.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E04Water / Drain Cleaning-fluid level drops unexpectedly Service recommended
Service recommended.

Possible cause: Internal machine problem.
E05Water / Drain Cleaning-fluid level too high Stop water supply if necessary and have the unit serviced.

Possible cause: Fluid-level sensing problem.
E06Sensors Middle fluid-level sensor error Clean the fluid-level sensor according to the manufacturer's maintenance instructions.
E06: cause & checks

E06 — Middle fluid-level sensor error

Possible cause: Residue on fluid-level sensor.

First checks: Clean the fluid-level sensor according to the manufacturer's maintenance instructions.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E07Sensors Lower fluid-level sensor error Clean the fluid-level sensor.
E07: cause & checks

E07 — Lower fluid-level sensor error

Possible cause: Residue on fluid-level sensor.

First checks: Clean the fluid-level sensor.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E11Water / Drain Too much disinfectant in disinfectant tank Check drain hose and basin drain filter. Verify disinfectant concentration before continued use.
E11: cause & checks

E11 — Too much disinfectant in disinfectant tank

Possible cause: Drain or disinfectant-return problem.

First checks: Check drain hose and basin drain filter. Verify disinfectant concentration before continued use.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E12Disinfectant Too little disinfectant in tank Clean circulation-port filters. Replace the disinfectant solution as required rather than topping off used solution.
E12: cause & checks

E12 — Too little disinfectant in tank

Possible cause: Insufficient disinfectant / circulation restriction.

First checks: Clean circulation-port filters. Replace the disinfectant solution as required rather than topping off used solution.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E13Water / Drain Basin fills with disinfectant unusually quickly Check drain hose and basin drain filter; remove residual solution and prepare fresh disinfectant as directed.
E13: cause & checks

E13 — Basin fills with disinfectant unusually quickly

Possible cause: Fluid remained in basin from an incomplete drain.

First checks: Check drain hose and basin drain filter; remove residual solution and prepare fresh disinfectant as directed.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E14Water / Drain Disinfectant cannot be returned to tank Check gas-filter ventilation openings and clean the drain- and circulation-port mesh filters.
E14: cause & checks

E14 — Disinfectant cannot be returned to tank

Possible cause: Drain/circulation filters restricted or gas-filter ventilation blocked.

First checks: Check gas-filter ventilation openings and clean the drain- and circulation-port mesh filters.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E15Disinfectant Fluid-level sensor error Clean the fluid-level sensor. If the error returns, service may be required.

Possible cause: Residue on sensor or internal fault.
E16Disinfectant Basin takes too long to fill with disinfectant Service recommended
Service recommended.

Possible cause: Internal machine fault.
E17Disinfectant Disinfectant will not heat correctly Service recommended
Service recommended.

Possible cause: Internal heating-system fault.
E18Disinfectant Temperature sensor error Service recommended
Service recommended.

Possible cause: Internal temperature-sensing fault.
E21Flow / Pressure Low air-purge pressure / air not flowing through scope channels Verify air-filter installation. Replace the air filter if clogged.
E21: cause & checks

E21 — Low air-purge pressure / air not flowing through scope channels

Possible cause: Air filter installed incorrectly or restricted.

First checks: Verify air-filter installation. Replace the air filter if clogged.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E22Flow / Pressure Insufficient fluid pressure Clean the circulation-port mesh filters.
E22: cause & checks

E22 — Insufficient fluid pressure

Possible cause: Circulation-port filters restricted.

First checks: Clean the circulation-port mesh filters.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E23Flow / Pressure Excessive fluid pressure Service recommended
Service recommended.

Possible cause: Internal equipment problem.
E31Lid / Drawer Lid open Close the lid firmly and restart. If it occurs after the cycle begins, service may be required.
E31: cause & checks

E31 — Lid open

Possible cause: Lid not fully closed or lid-detection problem.

First checks: Close the lid firmly and restart. If it occurs after the cycle begins, service may be required.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E41Electrical / System Power lost and restored during cycle Inspect the power connection and cord. Because the cycle was interrupted, follow the manufacturer's reprocessing instructions before reuse.

Possible cause: Power interruption, loose connection or damaged cord.
E51Water / Drain Water detected leaking inside machine Remove from service
Close the water supply and remove the unit from service pending repair.

Possible cause: Internal leak.
E61Electrical / System Ultrasonic cleaning not operating Service recommended
Service recommended.

Possible cause: Ultrasonic-system fault.
E71Disinfectant Disinfectant-bottle drawer sensor error Service recommended
Service recommended.

Possible cause: Internal drawer-sensing problem.
E72Water / Drain Disinfectant tank will not drain If solution remains in the basin, follow the E13 drain procedure. Otherwise, service is required.

Possible cause: Internal fault or retained solution.
E73Water / Drain Water-supply problem while preparing disinfectant Fully open water supply; inspect hose and inlet mesh; replace water filter if needed.
E73: cause & checks

E73 — Water-supply problem while preparing disinfectant

Possible cause: Restricted water supply, leak, clogged inlet filter or water filter.

First checks: Fully open water supply; inspect hose and inlet mesh; replace water filter if needed.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E74Disinfectant Disinfectant from cassette bottles isn't reaching the unit Verify the supply situation; persistent E74 generally requires service.

Possible cause: Cassette-supply or internal system problem.
E75Water / Drain Water-supply problem while preparing disinfectant Check faucet, water-supply hose, inlet mesh and water filter.
E75: cause & checks

E75 — Water-supply problem while preparing disinfectant

Possible cause: Restricted or temporarily insufficient water supply.

First checks: Check faucet, water-supply hose, inlet mesh and water filter.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E76Disinfectant Disinfectant-tank fluid-level sensor error Service recommended
Service recommended.

Possible cause: Internal sensor/system fault.
E77Disinfectant Disinfectant bottle drawer not fully positioned Push the drawer fully into its closed position.
E77: cause & checks

E77 — Disinfectant bottle drawer not fully positioned

Possible cause: Drawer not completely closed.

First checks: Push the drawer fully into its closed position.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E78Disinfectant Cassette-bottle problem / bottles empty Verify cassette installation and replace empty cassette bottles.
E78: cause & checks

E78 — Cassette-bottle problem / bottles empty

Possible cause: Bottles empty, improperly installed or not detected.

First checks: Verify cassette installation and replace empty cassette bottles.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E81Electrical / System Cycle cannot be properly controlled Service recommended
Service recommended.

Possible cause: Internal machine fault.
E82Electrical / System Internal machine irregularity Service recommended
Service recommended.

Possible cause: Electrical/internal fault.
E83Electrical / System Cycle cannot be properly controlled Service recommended
Service recommended.

Possible cause: Internal electrical fault.
E84Electrical / System RFID reader malfunction Service recommended
Service recommended.

Possible cause: RFID/electrical fault.
E91RFID / ID ID read error Clear/reset the reading and scan the required ID again.
E91: cause & checks

E91 — ID read error

Possible cause: ID not detected or multiple IDs detected.

First checks: Clear/reset the reading and scan the required ID again.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E92Flow / Pressure Leak test exceeds allowed time Verify the leak-test setup and perform the test again.

Possible cause: Leak-test process exceeds approximately 10 minutes.
E93Chemicals Alcohol unavailable or not feeding Check alcohol level and supply tubing/connections. Refill as needed; persistent errors require further diagnosis.
E93: cause & checks

E93 — Alcohol unavailable or not feeding

Possible cause: Alcohol empty, supply restriction, sensor/pump/piping issue.

First checks: Check alcohol level and supply tubing/connections. Refill as needed; persistent errors require further diagnosis.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E94Printer Printer not printing Check paper supply/installation and printer release lever.
E94: cause & checks

E94 — Printer not printing

Possible cause: Paper empty or printer release mechanism not positioned correctly.

First checks: Check paper supply/installation and printer release lever.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.
E95Chemicals Detergent unavailable or not feeding Replace/refill the approved detergent supply and restart. If detergent is present but E95 returns, inspect/prime the detergent feed system.
E95: cause & checks

E95 — Detergent unavailable or not feeding

Possible cause: Detergent depleted or detergent supply/priming problem.

First checks: Replace/refill the approved detergent supply and restart. If detergent is present but E95 returns, inspect/prime the detergent feed system.

Follow the applicable Olympus operation manual for the complete procedure. If the error persists, request service support.

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Contact MedServiceRepair about service support. Include the displayed error code and the checks already performed.

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About this reference. Code descriptions and checks are paraphrased summaries, not the complete Olympus operating instructions. Consult the applicable OER-Pro operation manual for your unit before performing maintenance or restarting reprocessing.

For recurring errors or codes marked “Service recommended,” contact MedServiceRepair.

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