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.




    • Related Articles

    • Relay not operating load

      Problem Relay not operating load Possible Cause Possible Solution Incorrect wiring Correct the wiring. Switch-on setting for stage incorrect Adjust the setting. Relay set to cool for a heater Relay set to heat for a fan No power to load Switch on the ...

    • Relay not operating load

      Problem Relay not operating load Possible Cause Possible Solution Incorrect wiring Correct the wiring. Switch-on setting for stage incorrect Adjust the setting. Relay set to cool for a heater Relay set to heat for a fan No power to load Switch on the ...

    • Relay not operating load

      Problem Relay not operating load Possible Cause Possible Solution Incorrect wiring Correct the wiring. Switch-on setting for stage incorrect Adjust the setting. Relay set to cool for a heater Relay set to heat for a fan No power to load Switch on the ...

    • Troubleshooting - Alarm relay not operating alarm system

      Problem Alarm relay not operating alarm system Possible Cause Incorrect wiring Possible Solution Correct the wiring.

    • Alarm relay not operating alarm system

      Problem Alarm relay not operating alarm system Possible Cause Incorrect wiring Possible Solution Correct the wiring.