The Leica Autostainer XL (ST5010) is a workhorse in histopathology labs, known for its efficiency and consistency. However, even with its reliability, occasional mechanical faults can arise—one of the most common being the “Head Stall” error. This error halts operations and requires immediate attention to avoid workflow disruptions. This article explains the causes of head … Read more

Overview When a Leica CM1850 cryostat repeatedly attempts to start but never begins cooling, labs experience immediate workflow disruption. This issue is common on older CM1850 units and can usually be traced to a failed start capacitor in the compressor circuit. At Rankin Services, we regularly resolve this failure and provide nationwide onsite repair, depot … Read more

Overview If your Leica HistoCore Arcadia H displays an E105 Peltier cool: No temp reached (1h) error, the unit is unable to cool the cold spot area to its set temperature. This stops proper paraffin block cooling and stalls embedding workflow. At Rankin Services, we frequently resolve this issue. One of the most common causes … Read more

Many Leica RM2255 Automated Microtomes eventually develop an intermittent beeping issue, often sounding like the end of travel alert even when the specimen head is not fully extended or retracted. The LED lights on the course advance and course retract may also flash with the beeping. This false alarm interrupts workflow and can cause unnecessary … Read more

Overview At Rankin Services, we recently completed a Sakura TEC 5 repair for a laboratory whose Tissue-Tek TEC 5 Embedding Module (Model 5101) had an unresponsive Enter button. This issue prevented the operator from navigating menus and completing daily embedding procedures — a common symptom of a failing operator panel sheet assembly. Most Likely Cause Worn operator panel sheet (membrane keypad) Over time, any button on the TEC 5 control panel can become unresponsive — … Read more

Overview When a Sakura Tissue-Tek VIP 5 displays Error 22 and Error 23, reagent flow has been blocked or slowed enough to trigger a timeout. This issue frequently occurs on systems that have not had preventative maintenance within the last 12 months, and it is commonly related to degraded rotary valve O-rings. At Rankin Services, … Read more

If the conveyor spirals on your Hematek 3000 Slide Stainer stop moving slides down the platen, the drive motor and gear shaft are likely worn out. Learn why this happens and how Rankin Services depot repair can help.  Overview As Hematek 3000 Slide Stainers age, more labs are reporting that the conveyor spirals stop moving … Read more

At Rankin Services, we frequently perform Leica ST5010 repair work for labs experiencing head stall errors or inconsistent movement during staining cycles. This common issue is often traced to the X-axis and Y-axis loom cables — flat ribbon cables that power and communicate with the stainer’s moving arm. Why Loom Failure Causes Head Stall Errors … Read more