604 Table optional Upholstery Heater System Troubleshooting

Model

 604 -003
Serial Number All

604 Table Optional Upholstery heater System

With the heater system's power cord properly connected, 115 VAC is supplied to the upholstery heater PC board thru the Distribution board.

Current does not flow thru the two fuses on the Distribution board. The Distribution board is merely a connection point for the upholstery heater system.

The two fuses, F1 and F2, on the upholstery heater PC board protect this system from excessive current.

Circuitry on the upholstery heater PC board reduces the line voltage, and supplies approximately 12 VAC to the upholstery heater switch.

When the upholstery heater switch is pressed ON, the switch illuminates and 12 VAC is supplied to the two upholstery heating elements. When the heating elements are energized, they warm the back and seat sections of the upholstered top. Pressing the heater button again, turns the heater system OFF.

The upholstery temperature can be adjusted. Refer to: Upholstery Heater System.

A timer on the upholstery heater PC board automatically turns the heater OFF after 8 hours. The timer is initiated when the upholstery heater switch is pressed ON.

604 Table Upholstery Heater System Troubleshooting

1.Check fuses on upholstery heater PC board. If either fuse is blown, replace both fuses.

2.Check the following connections for loose or disconnected wires:

a.Heater system power cord to supply source

b.Heater system power cord to Distribution board

c.Distribution board to upholstery PC board

d.Upholstery PC board to upholstery heater switch

3.Perform Supply Voltage Test. Refer to: Upholstery Heater System

604 Upholstery Heater Switch

1.Replace upholstery heater switch, Refer to: Upholstery Heater System.

604 Table Upholster Heater Switch Loose Connections

1.Check the following connections for loose or disconnected wires:

a.Seat section heating element to upholstery PC board

b.Back section htg. element to seat section htg. element

2.Perform Heating Element Test. Refer to: Upholstery Heater System.

604 Table upholstery heater switch troubleshooting

1.Timed cycle has expired. Upholstery heater shuts OFF automatically after 8 hours. Press upholstery heater switch to turn heater back ON.

2.Perform Heating Element Test. Refer to: Upholstery Heater System.