Help. The whole unit just went out without warning. All breakers are on. Is it the transformer?
281542
Probably yes, unless there is a loose connection at either side of the transformer (i.e. to the line voltage or to the cables)
795613
If the control pane is blank, and you're sure the outlet it's plugged into has power, it may have thrown the internal circuit breaker. Open the front panel, inside there is a 15amp circuit breaker. Very obvious. Make sure it is up/on. Mine has been blowing that every few days lately. Navien says they think its a bad recirculation pump.
2257677
sounds like you may have to send it back, but you can at least plug in another power supply, or test the units power supply on another 5 volt system, just to see what is broken. I have mine plugged into one of the USB ports on my TV, that way it powers off with the TV so I don't see a power light, it must be on the power supply it self. maybe moving it to another outlet might help to isolate the problem, just in case it was the outlet, saving you the trouble of sending it back. Good Luck!
1676105
Sounds to me like you don't have power coming out of the transformer; have you checked it to see if there is voltage present right at the transformer before connecting a cable to it? Is so, check for voltage at the end of the cable before you connect it to the 2400 unit. If so, the 2400 unit is most likely defective. Also, do you have power at the outlet you are using; make sure it is not controlled by a wall switch.
1427669
Double check in the owners manual for hints. Or call the company for their take on this. If nothing else I concur with others, replace the unit.
398610
I would check your breaker box first, make sure it is still plugged in. If not it probably has a short.
1892184
I had the same issue with the unit i installed. I looked closer at the specs and realized it is a dc 12 volt unit. If you are using an ac transformer, it will not function correct.
26272
Yes, remove the old transformer and put this one back in exactly the same way. Turn off the power and if you are not sure what you are doing hire a professional! Not worth burning down your house.
1713921
I had to replace the entire unit so I'm probably not much help. I'd give their support center a call -- they may be able to troubleshoot it remotely. Good luck.
1736754
I would first check for a pinched or crimped wire especially near the output and the sensor. If that doesn't reveal any answers and the unit just simply died, then contact David and he will take care of you. The last thing a manufacturer wants is an unhappy customer.
2028662
Without seeing or hearing the problem, I would call a professional. Worst case, there is something wrong with the unit, which can be a fire hazard.
1679714
I am a hvac tech, it should just resume normal operation. I would check your breakers if it's not coming on more than likely you have an issue elsewhere.
1600309
The only thing I can think of is incorrect wiring or you have it hooked up to something that is trying to draw more amperage than the unit can handle and it's tripping rather than switching anything on. Perhaps it's a protection circuit? Have you tried hooking it up to something that draws lower power? I had mine wired to a heating pad as a warming pad for a while to start seedlings. Then I wired it into a home made aquarium type heater. I don't get any 'alarms', my unit works perfectly every time. I'd have to see how you wired it and what it's wire to in order to help. Sorry.
725152
It is a transformer, yes, and the mode of failure would most likely not result in any damage to the appliance. However should there be a large spike in the input voltage such damage must be considered as a possibility.
1407779
Not sure what's going on, but check the instruction booklet for error problems and how to fix. Try unplugging both sides and plugging back in, including the outlet. Good luck
1729691
Check connections one might be loose or you hook the hot into sensor might have fried it bottom line recheck your wireing I would start there
1000259
There is a fuse to check. If it's good, it's probably the switch. If not, then that's the first thing to take care of.