About The Lift Chair Service Guide; Lift Chair Components - ultracomfort UC214 Service Manual

About the Lift Chair Service Guide

This service guide provides you with the information necessary to repair the UltraComfort
3-position, 2-position, and Stellar recline lift chairs. The troubleshooting scenarios in this manual
consist of procedures that enable you to systematically trace and correct faults in the system,
replacement procedures, and exploded views of available parts. Most replacement instructions
apply to all the lift chairs in this service manual, but some of them are specific to individual chairs.
Before troubleshooting, check the following:
 Make sure that the lift chair is plugged into a working wall outlet.
 Check the wall outlet circuit breaker.
 Visually check terminals for corrosion.
 Check wires for missing insulation.
 Check connectors for unseated pins.
 Ensure LED lights are on. (Refer to "Trouble Shooting with Smart Tek®" on page 34).
Information required prior to making a service call:
 Serial Number
 Date of Purchase
 Description of the problem with the lift chair

Lift Chair Components

Lift chairs are powered by 24V DC transformers that plug into standard wall outlets and operate on
standard 120V AC electricity. The lift chair control system is made up of the following components:
 Motor(s)
 Hand Control
 Extension Wire
* Only on Selected Models
Component: Motor
Location: Between the lift frame and the seat.
Function: Provides lift and recline.
Connections: Each motor is physically connected to the chair through the lift frame and the
recline straps. Each motor is electrically connected to either a control unit or directly to the hand
control.
Failure Signs: Chair will not lift and/or recline. Motor may become noisy just before failure.
Tests: See "Trouble Shooting with Smart Tek®" on page 34.
Expected Readings: See "Trouble Shooting with Smart Tek®" on page 34.
Serviceable: Must be replaced.
Component: Hand Control (Lift/Recline or Recline Only)
Location: On the arm of the chair.
Function: Provides user interface for lift/recline or recline only.
Connections: Connected to either the control unit or the motor.
Failure Signs: Chair will not lift and/or recline.
Tests: See "Trouble Shooting with Smart Tek®" on page 34.
Expected Readings: See "Trouble Shooting with Smart Tek®" on page 34.
Serviceable: Must be replaced.
 Transformer
 Battery Backup Wire*
 Heat Unit*
4
 Massage Unit*
 Control Unit*
 Junction Box*