Bed heater
Why would my bed heater just stop working?
31 Replies
eastern-cyan•2y ago
@blacksmithforlife moved it here
Stopped working how?
eastern-cyan•2y ago
It’s just, stoped…. Heating and gave a error
And what was the error?
eastern-cyan•2y ago
Heater not heating at expected rate
You need to check all the wiring. start with the MCU and confirm it is putting out voltage for the relay. Then check the wiring going into the relay. Then check the output of the relay. Then check the wiring to the bed.
eastern-cyan•2y ago
How can I check the mcu? For it putting out power
Probe the “bed power” negative and positive?
dependent-tan•2y ago
Yes
Do you see the temps go up at all in the UI when you assign the heater to a temperature like 60? ie: is it heating slowly, or is it not heating at all.
eastern-cyan•2y ago
Not at all
Yea, it’s 24v
dependent-tan•2y ago
Does your relay have a little light on it? If so does that come on when there's 24v from the MCU?
Use a multimeter
eastern-cyan•2y ago
Yea, red light comes on
I did
dependent-tan•2y ago
I would unplug it from the wall and carefully double check all your wiring is securely inserted and seated, it sounds like there's a problem on either the relay (not actually working), or there's a problem with power connectors on the mains side.
eastern-cyan•2y ago
I do know everything is seated properly.
could a crimp have gone bad?
dependent-tan•2y ago
Inspect your wires and see if the metal bit of the wires is in contact with your various connectors