Applies to:

Replacing the Timing Control

Description

To avoid electrical shock or property damage, move the power switch to OFF and disconnect power.

The Timer Control consists of a microswitch, indicator light, buzzer, reset timer, and timer motor

Checking Procedure

ON/OFF Switch

Test Points	Results
Switch in OFF Position
Check from #74 to #75	Open Circuit
Switch in ON Position
Check from #74 to #75	Closed Circuit

Buzzer Coil

Test Points	Results
Switch in OFF Position
Check from #14 to #75
120 Volt 50/60 Hz	1550 ohms
208-240 volt 50/60 Hz	5880 ohms

Microswitch

Test Points	Results
Timer Set At 10 Min
Check from #70 to #72	Closed Circuit
Check from #70 to #14	Open Circuit
Timer Set At 10 Min
Check from #70 to #72	Open Circuit
Check from #70 to #14	Closed Circuit

Motor

Test Points	Results
Check from #70 to #75
120 volt 50/60 Hz	290 ohms
208-240 volt 50/60 Hz	3990 ohms

Reset Coil

Test Points	Results
Check from #70 to #75
120 volt 50/60 Hz	280 ohms
208-240 volt 50/60 Hz	3950 ohms

Replacement

NOTICE -

Replacement of timer may not be necessary unless the lamp is burned out, the buzzer coil is burned open, or if ON/OFF switch is bad. The timer microswitch can be replaced separately.

Timer Light

Disconnect light wires from terminal board.
Remove and discard bad light assembly
Install new light assembly allowing retainers to snap into place.

Buzzer Coil

Remove buzzer and coil from timer.
Disconnect buzzer coil wires from terminal board of timer.
Install new buzzer and coil to timer.
Connect coil wires to terminal board of timer.
Install new or repaired timer on control panel and secure with four screws.
Attach wires to the timer in accordance with the labels attached.
Install control panel.

Timer Switch

Connect light leads to terminal board of timer.
Remove switch nuts and remove switch from panel.
Disconnect switch wires from terminal board.
Install new switch on panel and secure with switch nut.
Connect switch wires to the terminal board of timer.