Troubleshooting - Relay not operating load

Troubleshooting - Relay not operating load

Problem
Relay not operating load

Possible Cause
Possible Solution
Incorrect wiringCorrect the wiring.
Switch-on setting for stage incorrectAdjust the setting.
Relay set to cool for a heater
Relay set to heat for a fan

No power to load

Switch on the power. 

Faulty equipment 

Replace the equipment. 

Circuit breaker open
Reset the breaker.
Blown relay
Solve the problem that caused the relay to blow and then replace the circuit board or use a different relay.




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