Ali asked ... Replace wires to circuit board correctly?    |    Colin Porch asked ... Stannah 420 batteries?    |    Am asked ... How can I mend Smeg Dusf636x main oven?    |    Robert Loikith asked ... How to mend my Hoover Hushtone CH54115?    |    Mark asked ... Countax site on mower C300h?    |    Click here to ask your question

How can I fix my Bison 50 stair lift?

I replaced the charging unit for my Bison 50 stair lift (with a third party 33V 1A switching transformer from another stair lift) and replaced the battery packs. When powered up, the display under the seat alternates between S and r and the batteries shortly went dead. Any thoughts on what is wrong?
Cam Tait, November 2024
link Click here to see other fixes for Bison 50.