Welcome to RO

We repair a wide range of RO Equipment.

Ask questions, or 1-336-969-0110 for faster service.

Use the search bar above to find specific manufacturers.

• 40+ years of experience repairing Industrial & Commercial units
• Certified Senior Industrial Electronics Technician
• Ability to do Reverse Engineering
• No job to big or small
• Fast turn around time on most units
• Quality of work comes before profit!
• Old Fashion Customer Service is always the right policy
• Extended warranty
• Free estimate with an approved repair
• Practical owner-operated pricing
• Purchase orders and Net 7–30 terms for approved business accounts

Send the model and part number with a description of the failure for a repairability review.

Comments for RO

📝 AL said:

It appears that your himem.sys file is corrupted or missing.config.sys line 2 error is probably calling for this file.Open the file with notepad.exe and see. (or boot up w DOS floppy. type: Edit config.sys or open config.sys)if so, simply copying the himem.sys from your DOS disk could fix the problem.himem accesses the extended RAM memory and loads DOS there. without it, DOS is loaded into the Base memory. (the original 640K of RAM. and the only true Working section of RAM.)legacy of the Original Sin: in the days of the original PC (XT) 8080 intelthat 640K was an almost infinite size of RAMsince most programs in DOS were 1k 3k 5k etc.(There are actually 3 sections of RAM (stupid microsoft) patches, patches.BASE RAMextended RAMexpanded RAMOR----simply copy himem.sys from DOS floppy to HD dir called for, if it works; then you know what it was. no need to verify by opening files, etc.but at least you know what is taking place. in the OSAl Castaneda

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