Troubleshooting - Lang Purple Product Manual

Back-up relay closes.
24 volts to Back-up Thermostat
24 volts to terminal 2 on coil of motor conatactor.
Motor contactor closes.
Motor starts.
24 volts through motor contactor points (from jumper on coil) to terminal 1 on coil of heat
contactor.
Temperature set on Back-up Thermostat
24 volts from Back-up Thermostat through Hi-limit thermostat to terminal 2 on coil of heat
contactor.
Heat contactor closes.
208/240 volts to elements.

TROUBLESHOOTING

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