ktribble23 Posted September 8, 2023 Report Share Posted September 8, 2023 The power button lights up but the board does not turn on. We replaced all wiring, new relay and new transformer. My husband has no idea what it can be. If someone is available to troubleshoot with us over the phone that would be very helpful Quote Link to comment Share on other sites More sharing options...
neilestrick Posted September 9, 2023 Report Share Posted September 9, 2023 First check the fuse. Make sure it hasn't blown for some reason, and make sure everything is tight. Check the wiring on the transformer. Terminals 1 and 4 each get a hot. 2 and 3 have a jumper connecting them. 5 and 8 go to AC1 and AC2 on the controller, 7 is ground. Do you have a multi meter that you can use to check that the transformer is sending out the correct voltage? Wiring diagram HERE. Quote Link to comment Share on other sites More sharing options...
ktribble23 Posted September 9, 2023 Author Report Share Posted September 9, 2023 Yes he has a multi meter...I will have him check the transformer to make sure it is sending out the correct voltage. Can you tell me how he would do that? Quote Link to comment Share on other sites More sharing options...
neilestrick Posted September 9, 2023 Report Share Posted September 9, 2023 1 hour ago, ktribble23 said: Yes he has a multi meter...I will have him check the transformer to make sure it is sending out the correct voltage. Can you tell me how he would do that? First check that you're getting continuity through the fuse. If you're not, then either the fuse is bad or the fuse holder is bad or the fuse isn't tight in the holder. If the fuse is good then measure the voltage coming out of the transformer- when measuring the voltage between the two wires going from the transformer to the controller you should get about 24 volts AC. Set the meter to VAC and put a probe on each terminal. You can either measure from the terminals on the transformer or the AC1 and AC2 terminals on the controller. Be careful since there will be live wires. Quote Link to comment Share on other sites More sharing options...
ktribble23 Posted September 10, 2023 Author Report Share Posted September 10, 2023 Ok the fuse is good so we will try the transformer today. I will let you know. Thank You for your help. Quote Link to comment Share on other sites More sharing options...
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