Stairlift (Grassmoor, Chesterfield)

Straight stairlift, length 11 steps plus onto landing. Purchased 2014 but not been used for 5 years so will need new batteries. Has manual and a remote control to call chair up or down. When switched on now, it shows error code H4, which could just be batteries, but if you Google "Brooks stairlift error code H4", there are other suggested remedies. You must dismantle and collect from Grassmoor, Chesterfield.