Power On/Off Switch; Power Switch Troubleshooting; Sympton-No Power Supplied To Unit; Power Switch Removal And Installation - Vulcan-Hart 24RRG Service Manual

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Service manual (24 pages)

Table Of Contents

Table of Contents

TEMPERATURE

CONTROLLER

The Power Switch controls the power supply to all other electronic components.

Disconnect the electrical power and follow lockout / tagout procedures

POWER SWITCH TROUBLESHOOTING

SYMPTOM – NO POWER BEING SUPPLIED TO THE UNIT

Check for loose or excessively greasy/dirty connections at terminals.

With power wires disconnected check for continuity/resistance between the 1 and 2 terminals

A. If continuity/resistance with switch in OFF position – replace switch

B. If no continuity/no resistance with switch in ON position – replace switch

Check for 120 voltage from #2 terminal to ground

A. If no voltage – check main wiring from j box and power cord/plug

B. If getting voltage to #2 terminal – check voltage to #1 terminal to ground with switch in

"on" position.

1. If no voltage – replace switch

POWER SWITCH REMOVAL

1. Remove the control panel.

2. Label and disconnect the wires to the power switch.

3. Squeeze the switch retainers and slide the switch out through the front of the

control panel.

4. Reverse the procedure to install and check for operation.

# 1 TERMINAL

INDICATOR

LIGHT