SP540V Heater control problem

[gkabot]

Trying to figure out what is making my drying deck overheat. First issue was that the print heater was working fine but the drying deck would not heat up, before I could resolve that issue I had to move the printer to another location. When I next switched it on the print heater no longer worked but the drying deck heats up to 60 and then gives the dryer overheat code 0126.
What part is the issue? Thermistor, thermostat, heater control board or heater power board?

Any ideas would be greatly appreciated.

thanks

 

[FrankW]

Check the plugs at the heater control board, plug them in and out several times. Rarely specially on older machines the contacts oxydices a little bit.

 

[phototec]

Don't know for sure, however a Google search turned up the two links below:

http://www.avc-n.com/eng/review/pages/96


0126 Heater Error (Dryer)
Dryer doesn't work correctly. Temperature of the Dryer is over 60 degree
Celsius. There is a cut-line/short in the wiring of the Dryer.Thermostat is broken.Thermistor is broken.
1) Check the wirings of Dryer
2) Thermostat Replacement
3) Thermistor Replacement



http://www.signs101.com/content/SP540Ve.pdf


Good Luck!

 

[Papajo]

Heating is controlled by relays lying on the heater control board inside the bed of the machine. You can see the board if you remove the front plate just under the dryer plate. One of the relays may be stuck, preventing the machine from controlling the temperature.